./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/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_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/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_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/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 e288cdaba4e30d81bab26ec9691518934a309caacc3b94b192fd690548484ff4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:12:24,350 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:12:24,475 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:12:24,487 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:12:24,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:12:24,530 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:12:24,531 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:12:24,531 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:12:24,532 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:12:24,539 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:12:24,539 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:12:24,541 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:12:24,541 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:12:24,543 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:12:24,543 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:12:24,544 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:12:24,544 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:12:24,545 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:12:24,545 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:12:24,546 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:12:24,546 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:12:24,547 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:12:24,548 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:12:24,549 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:12:24,550 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:12:24,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:12:24,551 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:12:24,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:12:24,552 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:12:24,552 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:12:24,554 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:12:24,554 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:12:24,555 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:12:24,555 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:12:24,555 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:12:24,556 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:12:24,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:12:24,557 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:12:24,557 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:12:24,557 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:12:24,557 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:12:24,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:12:24,558 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:12:24,558 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:12:24,559 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:12:24,559 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_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e288cdaba4e30d81bab26ec9691518934a309caacc3b94b192fd690548484ff4 [2023-11-12 00:12:24,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:12:24,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:12:24,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:12:24,981 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:12:24,982 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:12:24,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-1.i [2023-11-12 00:12:28,557 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:12:28,879 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:12:28,879 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/sv-benchmarks/c/seq-pthread/cs_read_write_lock-1.i [2023-11-12 00:12:28,907 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX/data/0c691bb89/f9dc5a413f6c44f78e4b73d12f1851b6/FLAGdd3ab33a4 [2023-11-12 00:12:28,924 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX/data/0c691bb89/f9dc5a413f6c44f78e4b73d12f1851b6 [2023-11-12 00:12:28,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:12:28,929 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:12:28,931 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:12:28,931 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:12:28,937 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:12:28,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:12:28" (1/1) ... [2023-11-12 00:12:28,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14dbf22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:28, skipping insertion in model container [2023-11-12 00:12:28,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:12:28" (1/1) ... [2023-11-12 00:12:29,035 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:12:29,578 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_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/sv-benchmarks/c/seq-pthread/cs_read_write_lock-1.i[23614,23627] [2023-11-12 00:12:29,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:12:29,784 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:12:29,819 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_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/sv-benchmarks/c/seq-pthread/cs_read_write_lock-1.i[23614,23627] [2023-11-12 00:12:29,883 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:12:29,942 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:12:29,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:29 WrapperNode [2023-11-12 00:12:29,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:12:29,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:12:29,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:12:29,944 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:12:29,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:29" (1/1) ... [2023-11-12 00:12:30,000 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:29" (1/1) ... [2023-11-12 00:12:30,065 INFO L138 Inliner]: procedures = 147, calls = 289, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 606 [2023-11-12 00:12:30,066 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:12:30,067 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:12:30,067 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:12:30,067 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:12:30,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:29" (1/1) ... [2023-11-12 00:12:30,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:29" (1/1) ... [2023-11-12 00:12:30,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:29" (1/1) ... [2023-11-12 00:12:30,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:29" (1/1) ... [2023-11-12 00:12:30,138 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:29" (1/1) ... [2023-11-12 00:12:30,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:29" (1/1) ... [2023-11-12 00:12:30,152 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:29" (1/1) ... [2023-11-12 00:12:30,158 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:29" (1/1) ... [2023-11-12 00:12:30,170 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:12:30,171 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:12:30,171 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:12:30,171 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:12:30,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:29" (1/1) ... [2023-11-12 00:12:30,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:12:30,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:12:30,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:12:30,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:12:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:12:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:12:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:12:30,300 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:12:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:12:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:12:30,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:12:30,303 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-12 00:12:30,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-12 00:12:30,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:12:30,304 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-12 00:12:30,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-12 00:12:30,305 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-12 00:12:30,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-12 00:12:30,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:12:30,305 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-12 00:12:30,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-12 00:12:30,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:12:30,306 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_assume [2023-11-12 00:12:30,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_assume [2023-11-12 00:12:30,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:12:30,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:12:30,604 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:12:30,607 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:12:31,335 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: 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 00:12:31,335 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);reader_#res#1.base, reader_#res#1.offset := 0, 0; [2023-11-12 00:12:33,971 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:12:34,161 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:12:34,162 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:12:34,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:12:34 BoogieIcfgContainer [2023-11-12 00:12:34,165 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:12:34,169 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:12:34,169 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:12:34,173 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:12:34,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:12:28" (1/3) ... [2023-11-12 00:12:34,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170af881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:12:34, skipping insertion in model container [2023-11-12 00:12:34,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:29" (2/3) ... [2023-11-12 00:12:34,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170af881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:12:34, skipping insertion in model container [2023-11-12 00:12:34,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:12:34" (3/3) ... [2023-11-12 00:12:34,179 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_read_write_lock-1.i [2023-11-12 00:12:34,206 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:12:34,206 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:12:34,288 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:12:34,296 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;@725fb73b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:12:34,296 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:12:34,303 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 86 states have internal predecessors, (117), 52 states have call successors, (52), 6 states have call predecessors, (52), 6 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-12 00:12:34,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-12 00:12:34,343 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:34,344 INFO L195 NwaCegarLoop]: trace histogram [14, 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 00:12:34,345 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:12:34,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:34,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1316404646, now seen corresponding path program 1 times [2023-11-12 00:12:34,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:12:34,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532440050] [2023-11-12 00:12:34,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:34,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:12:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:35,281 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-11-12 00:12:35,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:12:35,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532440050] [2023-11-12 00:12:35,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532440050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:12:35,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:12:35,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:12:35,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650397085] [2023-11-12 00:12:35,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:12:35,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:12:35,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:12:35,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:12:35,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:12:35,337 INFO L87 Difference]: Start difference. First operand has 145 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 86 states have internal predecessors, (117), 52 states have call successors, (52), 6 states have call predecessors, (52), 6 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-12 00:12:37,407 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 00:12:39,414 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 00:12:39,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:12:39,631 INFO L93 Difference]: Finished difference Result 289 states and 441 transitions. [2023-11-12 00:12:39,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:12:39,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 70 [2023-11-12 00:12:39,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:12:39,645 INFO L225 Difference]: With dead ends: 289 [2023-11-12 00:12:39,645 INFO L226 Difference]: Without dead ends: 145 [2023-11-12 00:12:39,651 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 00:12:39,654 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 2 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:12:39,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 386 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2023-11-12 00:12:39,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-11-12 00:12:39,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 144. [2023-11-12 00:12:39,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 85 states have (on average 1.3529411764705883) internal successors, (115), 85 states have internal predecessors, (115), 52 states have call successors, (52), 6 states have call predecessors, (52), 6 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-12 00:12:39,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 219 transitions. [2023-11-12 00:12:39,720 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 219 transitions. Word has length 70 [2023-11-12 00:12:39,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:12:39,720 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 219 transitions. [2023-11-12 00:12:39,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-12 00:12:39,721 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 219 transitions. [2023-11-12 00:12:39,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-12 00:12:39,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:39,727 INFO L195 NwaCegarLoop]: trace histogram [14, 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] [2023-11-12 00:12:39,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:12:39,728 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:12:39,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:39,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1174911560, now seen corresponding path program 1 times [2023-11-12 00:12:39,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:12:39,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466024192] [2023-11-12 00:12:39,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:39,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:12:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:40,214 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-11-12 00:12:40,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:12:40,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466024192] [2023-11-12 00:12:40,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466024192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:12:40,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:12:40,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:12:40,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539347579] [2023-11-12 00:12:40,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:12:40,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:12:40,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:12:40,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:12:40,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:12:40,221 INFO L87 Difference]: Start difference. First operand 144 states and 219 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-12 00:12:42,297 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 00:12:44,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:12:44,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:12:44,488 INFO L93 Difference]: Finished difference Result 287 states and 438 transitions. [2023-11-12 00:12:44,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:12:44,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 72 [2023-11-12 00:12:44,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:12:44,492 INFO L225 Difference]: With dead ends: 287 [2023-11-12 00:12:44,492 INFO L226 Difference]: Without dead ends: 145 [2023-11-12 00:12:44,494 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 00:12:44,496 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 0 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:12:44,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 385 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2023-11-12 00:12:44,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-11-12 00:12:44,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2023-11-12 00:12:44,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 86 states have (on average 1.3488372093023255) internal successors, (116), 86 states have internal predecessors, (116), 52 states have call successors, (52), 6 states have call predecessors, (52), 6 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-12 00:12:44,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 220 transitions. [2023-11-12 00:12:44,518 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 220 transitions. Word has length 72 [2023-11-12 00:12:44,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:12:44,519 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 220 transitions. [2023-11-12 00:12:44,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-12 00:12:44,519 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 220 transitions. [2023-11-12 00:12:44,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-12 00:12:44,523 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:44,524 INFO L195 NwaCegarLoop]: trace histogram [14, 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] [2023-11-12 00:12:44,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:12:44,524 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:12:44,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:44,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1774683865, now seen corresponding path program 1 times [2023-11-12 00:12:44,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:12:44,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071290639] [2023-11-12 00:12:44,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:44,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:12:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:44,871 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-11-12 00:12:44,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:12:44,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071290639] [2023-11-12 00:12:44,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071290639] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:12:44,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649355058] [2023-11-12 00:12:44,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:44,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:12:44,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:12:44,884 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:12:44,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:12:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:45,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:12:45,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:12:45,458 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-11-12 00:12:45,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:12:45,561 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-11-12 00:12:45,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649355058] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:12:45,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [862109217] [2023-11-12 00:12:45,588 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2023-11-12 00:12:45,589 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:12:45,592 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:12:45,598 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:12:45,598 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:12:57,992 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:13:01,234 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse6 (+ 8 |c_~#__CS_thread_status~0.offset|)) (.cse25 (+ |c_~#w~0.offset| 4)) (.cse15 (+ |c_~#__CS_thread_lockedon~0.offset| 36)) (.cse35 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 36)) (.cse28 (+ |c_~#__CS_thread_lockedon~0.offset| 32)) (.cse37 (+ 32 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset|)) (.cse26 (+ |c_~#__CS_thread_lockedon~0.offset| 28)) (.cse39 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 28)) (.cse12 (+ |c_~#__CS_thread_lockedon~0.offset| 24)) (.cse41 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 24)) (.cse1 (+ |c_~#__CS_thread_lockedon~0.offset| 20)) (.cse42 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 20)) (.cse24 (+ |c_~#r~0.offset| 4)) (.cse8 (+ 7 |c_~#__CS_thread_status~0.offset|)) (.cse11 (+ 5 |c_~#__CS_thread_status~0.offset|)) (.cse22 (+ 4 |c_~#x~0.offset|)) (.cse20 (+ |c_~#y~0.offset| 4)) (.cse4 (+ 9 |c_~#__CS_thread_status~0.offset|)) (.cse10 (+ 6 |c_~#__CS_thread_status~0.offset|))) (and (= (select (select |c_#memory_int| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|) |c_ULTIMATE.start_main_#t~mem74#1|) (exists ((|v_#memory_int_176| (Array Int (Array Int Int))) (|v_#memory_int_177| (Array Int (Array Int Int))) (|v_#memory_int_173| (Array Int (Array Int Int))) (|v_#memory_int_240| (Array Int (Array Int Int))) (|v_#memory_int_174| (Array Int (Array Int Int))) (|v_#memory_int_175| (Array Int (Array Int Int)))) (let ((.cse2 (select |v_#memory_int_177| |c_~#__CS_thread_lockedon~0.base|)) (.cse13 (select |v_#memory_int_176| |c_~#__CS_thread_lockedon~0.base|)) (.cse27 (select |v_#memory_int_175| |c_~#__CS_thread_lockedon~0.base|)) (.cse14 (select |v_#memory_int_174| |c_~#__CS_thread_lockedon~0.base|))) (and (= (let ((.cse0 (store |v_#memory_int_240| |c_~#__CS_thread_status~0.base| (let ((.cse3 (let ((.cse5 (let ((.cse7 (let ((.cse9 (store (select |v_#memory_int_240| |c_~#__CS_thread_status~0.base|) .cse11 (select (select |v_#memory_int_240| |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 .cse9 .cse10 (select (select (store |v_#memory_int_240| |c_~#__CS_thread_status~0.base| .cse9) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 6)))))) (store .cse7 .cse8 (select (select (store |v_#memory_int_240| |c_~#__CS_thread_status~0.base| .cse7) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ 7 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset|)))))) (store .cse5 .cse6 (select (select (store |v_#memory_int_240| |c_~#__CS_thread_status~0.base| .cse5) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 8)))))) (store .cse3 .cse4 (select (select (store |v_#memory_int_240| |c_~#__CS_thread_status~0.base| .cse3) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 9))))))) (store .cse0 |c_~#__CS_thread_lockedon~0.base| (store (select .cse0 |c_~#__CS_thread_lockedon~0.base|) .cse1 (select .cse2 .cse1)))) |v_#memory_int_177|) (= (store |v_#memory_int_177| |c_~#__CS_thread_lockedon~0.base| (store .cse2 .cse12 (select .cse13 .cse12))) |v_#memory_int_176|) (= (store |v_#memory_int_174| |c_~#__CS_thread_lockedon~0.base| (store .cse14 .cse15 (select (select |v_#memory_int_173| |c_~#__CS_thread_lockedon~0.base|) .cse15))) |v_#memory_int_173|) (= (let ((.cse16 (let ((.cse17 (let ((.cse18 (let ((.cse19 (let ((.cse21 (let ((.cse23 (store |v_#memory_int_173| |c_~#w~0.base| (store (select |v_#memory_int_173| |c_~#w~0.base|) .cse25 (select (select |v_#memory_int_173| |c_ULTIMATE.start_main_~#__CS_cp_w~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_w~0#1.offset| 4)))))) (store .cse23 |c_~#r~0.base| (store (select .cse23 |c_~#r~0.base|) .cse24 (select (select .cse23 |c_ULTIMATE.start_main_~#__CS_cp_r~0#1.base|) (+ 4 |c_ULTIMATE.start_main_~#__CS_cp_r~0#1.offset|))))))) (store .cse21 |c_~#x~0.base| (store (select .cse21 |c_~#x~0.base|) .cse22 (select (select .cse21 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base|) (+ 4 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.offset|))))))) (store .cse19 |c_~#y~0.base| (store (select .cse19 |c_~#y~0.base|) .cse20 (select (select .cse19 |c_ULTIMATE.start_main_~#__CS_cp_y~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_y~0#1.offset| 4))))))) (store .cse18 |c_~#__CS_thread_born_round~0.base| (store (select .cse18 |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| 0))))) (store .cse17 |c_~#__CS_thread_status~0.base| (store (select .cse17 |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| c_~__THREAD_RUNNING~0))))) (store .cse16 |c_~#__CS_thread_allocated~0.base| (store (select .cse16 |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| 1))) |c_#memory_int|) (= |v_#memory_int_175| (store |v_#memory_int_176| |c_~#__CS_thread_lockedon~0.base| (store .cse13 .cse26 (select .cse27 .cse26)))) (= (store |v_#memory_int_175| |c_~#__CS_thread_lockedon~0.base| (store .cse27 .cse28 (select .cse14 .cse28))) |v_#memory_int_174|)))) (exists ((v_~__CS_thread~0.offset_52 (Array Int Int))) (= (store v_~__CS_thread~0.offset_52 0 |#funAddr~main_thread.offset|) c_~__CS_thread~0.offset)) (<= 2 |c_ULTIMATE.start_main_~i~0#1|) (exists ((|v_#memory_$Pointer$.offset_190| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_191| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_192| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_193| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_183| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_184| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_185| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_186| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_187| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_297| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_188| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_189| (Array Int (Array Int Int)))) (let ((.cse29 (select |v_#memory_$Pointer$.offset_193| |c_~#__CS_thread_status~0.base|)) (.cse30 (select |v_#memory_$Pointer$.offset_191| |c_~#__CS_thread_status~0.base|)) (.cse32 (select |v_#memory_$Pointer$.offset_187| |c_~#__CS_thread_status~0.base|)) (.cse31 (select |v_#memory_$Pointer$.offset_189| |c_~#__CS_thread_status~0.base|))) (and (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_186| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.offset_186| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.offset| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|)))) (= (store |v_#memory_$Pointer$.offset_193| |c_~#__CS_thread_status~0.base| (store .cse29 .cse6 (select .cse30 .cse6))) |v_#memory_$Pointer$.offset_191|) (= (store |v_#memory_$Pointer$.offset_189| |c_~#__CS_thread_status~0.base| (store .cse31 .cse8 (select .cse29 .cse8))) |v_#memory_$Pointer$.offset_193|) (= (store |v_#memory_$Pointer$.offset_191| |c_~#__CS_thread_status~0.base| (store .cse30 .cse4 (select (select |v_#memory_$Pointer$.offset_190| |c_~#__CS_thread_status~0.base|) .cse4))) |v_#memory_$Pointer$.offset_190|) (= (store |v_#memory_$Pointer$.offset_185| |c_~#y~0.base| (store (select |v_#memory_$Pointer$.offset_185| |c_~#y~0.base|) .cse20 (select (select |v_#memory_$Pointer$.offset_183| |c_~#y~0.base|) .cse20))) |v_#memory_$Pointer$.offset_183|) (= (store |v_#memory_$Pointer$.offset_188| |c_~#r~0.base| (store (select |v_#memory_$Pointer$.offset_188| |c_~#r~0.base|) .cse24 (select (select |v_#memory_$Pointer$.offset_192| |c_~#r~0.base|) .cse24))) |v_#memory_$Pointer$.offset_192|) (= (store |v_#memory_$Pointer$.offset_297| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_297| |c_~#__CS_thread_status~0.base|) .cse11 (select .cse32 .cse11))) |v_#memory_$Pointer$.offset_187|) (= (store |v_#memory_$Pointer$.offset_187| |c_~#__CS_thread_status~0.base| (store .cse32 .cse10 (select .cse31 .cse10))) |v_#memory_$Pointer$.offset_189|) (= (store |v_#memory_$Pointer$.offset_184| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_184| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.offset_186| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|))) |v_#memory_$Pointer$.offset_186|) (= (let ((.cse33 (store |v_#memory_$Pointer$.offset_190| |c_~#__CS_thread_lockedon~0.base| (let ((.cse34 (let ((.cse36 (let ((.cse38 (let ((.cse40 (store (select |v_#memory_$Pointer$.offset_190| |c_~#__CS_thread_lockedon~0.base|) .cse1 (select (select |v_#memory_$Pointer$.offset_190| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse42)))) (store .cse40 .cse12 (select (select (store |v_#memory_$Pointer$.offset_190| |c_~#__CS_thread_lockedon~0.base| .cse40) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse41))))) (store .cse38 .cse26 (select (select (store |v_#memory_$Pointer$.offset_190| |c_~#__CS_thread_lockedon~0.base| .cse38) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse39))))) (store .cse36 .cse28 (select (select (store |v_#memory_$Pointer$.offset_190| |c_~#__CS_thread_lockedon~0.base| .cse36) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse37))))) (store .cse34 .cse15 (select (select (store |v_#memory_$Pointer$.offset_190| |c_~#__CS_thread_lockedon~0.base| .cse34) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse35)))))) (store .cse33 |c_~#w~0.base| (store (select .cse33 |c_~#w~0.base|) .cse25 (select (select |v_#memory_$Pointer$.offset_188| |c_~#w~0.base|) .cse25)))) |v_#memory_$Pointer$.offset_188|) (= (store |v_#memory_$Pointer$.offset_192| |c_~#x~0.base| (store (select |v_#memory_$Pointer$.offset_192| |c_~#x~0.base|) .cse22 (select (select |v_#memory_$Pointer$.offset_185| |c_~#x~0.base|) .cse22))) |v_#memory_$Pointer$.offset_185|) (= |v_#memory_$Pointer$.offset_184| (store |v_#memory_$Pointer$.offset_183| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.offset_183| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.offset_184| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|))))))) (exists ((|v_#memory_$Pointer$.base_185| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_184| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_183| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_193| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_192| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_191| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_190| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_189| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_188| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_187| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_297| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_186| (Array Int (Array Int Int)))) (let ((.cse43 (select |v_#memory_$Pointer$.base_188| |c_~#__CS_thread_status~0.base|)) (.cse44 (select |v_#memory_$Pointer$.base_186| |c_~#__CS_thread_status~0.base|)) (.cse51 (select |v_#memory_$Pointer$.base_192| |c_~#__CS_thread_status~0.base|)) (.cse50 (select |v_#memory_$Pointer$.base_191| |c_~#__CS_thread_status~0.base|))) (and (= (store |v_#memory_$Pointer$.base_188| |c_~#__CS_thread_status~0.base| (store .cse43 .cse6 (select .cse44 .cse6))) |v_#memory_$Pointer$.base_186|) (= (let ((.cse45 (store |v_#memory_$Pointer$.base_189| |c_~#__CS_thread_lockedon~0.base| (let ((.cse46 (let ((.cse47 (let ((.cse48 (let ((.cse49 (store (select |v_#memory_$Pointer$.base_189| |c_~#__CS_thread_lockedon~0.base|) .cse1 (select (select |v_#memory_$Pointer$.base_189| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse42)))) (store .cse49 .cse12 (select (select (store |v_#memory_$Pointer$.base_189| |c_~#__CS_thread_lockedon~0.base| .cse49) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse41))))) (store .cse48 .cse26 (select (select (store |v_#memory_$Pointer$.base_189| |c_~#__CS_thread_lockedon~0.base| .cse48) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse39))))) (store .cse47 .cse28 (select (select (store |v_#memory_$Pointer$.base_189| |c_~#__CS_thread_lockedon~0.base| .cse47) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse37))))) (store .cse46 .cse15 (select (select (store |v_#memory_$Pointer$.base_189| |c_~#__CS_thread_lockedon~0.base| .cse46) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse35)))))) (store .cse45 |c_~#w~0.base| (store (select .cse45 |c_~#w~0.base|) .cse25 (select (select |v_#memory_$Pointer$.base_187| |c_~#w~0.base|) .cse25)))) |v_#memory_$Pointer$.base_187|) (= (store |v_#memory_$Pointer$.base_187| |c_~#r~0.base| (store (select |v_#memory_$Pointer$.base_187| |c_~#r~0.base|) .cse24 (select (select |v_#memory_$Pointer$.base_190| |c_~#r~0.base|) .cse24))) |v_#memory_$Pointer$.base_190|) (= (store |v_#memory_$Pointer$.base_191| |c_~#__CS_thread_status~0.base| (store .cse50 .cse8 (select .cse43 .cse8))) |v_#memory_$Pointer$.base_188|) (= (store |v_#memory_$Pointer$.base_297| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_297| |c_~#__CS_thread_status~0.base|) .cse11 (select .cse51 .cse11))) |v_#memory_$Pointer$.base_192|) (= (store |v_#memory_$Pointer$.base_190| |c_~#x~0.base| (store (select |v_#memory_$Pointer$.base_190| |c_~#x~0.base|) .cse22 (select (select |v_#memory_$Pointer$.base_183| |c_~#x~0.base|) .cse22))) |v_#memory_$Pointer$.base_183|) (= (store |v_#memory_$Pointer$.base_185| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.base_185| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.base_193| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|))) |v_#memory_$Pointer$.base_193|) (= |c_#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_184| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.base_184| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.base| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|)))) (= (store |v_#memory_$Pointer$.base_183| |c_~#y~0.base| (store (select |v_#memory_$Pointer$.base_183| |c_~#y~0.base|) .cse20 (select (select |v_#memory_$Pointer$.base_185| |c_~#y~0.base|) .cse20))) |v_#memory_$Pointer$.base_185|) (= (store |v_#memory_$Pointer$.base_193| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_193| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.base_184| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|))) |v_#memory_$Pointer$.base_184|) (= (store |v_#memory_$Pointer$.base_186| |c_~#__CS_thread_status~0.base| (store .cse44 .cse4 (select (select |v_#memory_$Pointer$.base_189| |c_~#__CS_thread_status~0.base|) .cse4))) |v_#memory_$Pointer$.base_189|) (= (store |v_#memory_$Pointer$.base_192| |c_~#__CS_thread_status~0.base| (store .cse51 .cse10 (select .cse50 .cse10))) |v_#memory_$Pointer$.base_191|)))) (exists ((v_~__CS_thread~0.base_52 (Array Int Int))) (= c_~__CS_thread~0.base (store v_~__CS_thread~0.base_52 0 |#funAddr~main_thread.base|))) (<= 5 |c_ULTIMATE.start_main_~j~2#1|) (= c_~__CS_round~0 0) (= c_~__CS_thread_index~0 0))) is different from false [2023-11-12 00:13:01,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [862109217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:13:01,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:13:01,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 4] total 9 [2023-11-12 00:13:01,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803839175] [2023-11-12 00:13:01,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:13:01,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:13:01,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:13:01,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:13:01,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=34, Unknown=1, NotChecked=12, Total=72 [2023-11-12 00:13:01,249 INFO L87 Difference]: Start difference. First operand 145 states and 220 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-12 00:13:03,357 WARN L539 Checker$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 00:13:05,410 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse29 (< 4 |c_ULTIMATE.start_main_~j~2#1|)) (.cse6 (+ 8 |c_~#__CS_thread_status~0.offset|)) (.cse25 (+ |c_~#w~0.offset| 4)) (.cse15 (+ |c_~#__CS_thread_lockedon~0.offset| 36)) (.cse53 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 36)) (.cse28 (+ |c_~#__CS_thread_lockedon~0.offset| 32)) (.cse55 (+ 32 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset|)) (.cse26 (+ |c_~#__CS_thread_lockedon~0.offset| 28)) (.cse57 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 28)) (.cse12 (+ |c_~#__CS_thread_lockedon~0.offset| 24)) (.cse59 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 24)) (.cse1 (+ |c_~#__CS_thread_lockedon~0.offset| 20)) (.cse60 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 20)) (.cse24 (+ |c_~#r~0.offset| 4)) (.cse8 (+ 7 |c_~#__CS_thread_status~0.offset|)) (.cse11 (+ 5 |c_~#__CS_thread_status~0.offset|)) (.cse22 (+ 4 |c_~#x~0.offset|)) (.cse20 (+ |c_~#y~0.offset| 4)) (.cse4 (+ 9 |c_~#__CS_thread_status~0.offset|)) (.cse10 (+ 6 |c_~#__CS_thread_status~0.offset|)) (.cse45 (= c_~__CS_round~0 0)) (.cse46 (= c_~__CS_thread_index~0 0))) (and (= (select (select |c_#memory_int| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|) |c_ULTIMATE.start_main_#t~mem74#1|) (exists ((|v_#memory_int_176| (Array Int (Array Int Int))) (|v_#memory_int_177| (Array Int (Array Int Int))) (|v_#memory_int_173| (Array Int (Array Int Int))) (|v_#memory_int_240| (Array Int (Array Int Int))) (|v_#memory_int_174| (Array Int (Array Int Int))) (|v_#memory_int_175| (Array Int (Array Int Int)))) (let ((.cse2 (select |v_#memory_int_177| |c_~#__CS_thread_lockedon~0.base|)) (.cse13 (select |v_#memory_int_176| |c_~#__CS_thread_lockedon~0.base|)) (.cse27 (select |v_#memory_int_175| |c_~#__CS_thread_lockedon~0.base|)) (.cse14 (select |v_#memory_int_174| |c_~#__CS_thread_lockedon~0.base|))) (and (= (let ((.cse0 (store |v_#memory_int_240| |c_~#__CS_thread_status~0.base| (let ((.cse3 (let ((.cse5 (let ((.cse7 (let ((.cse9 (store (select |v_#memory_int_240| |c_~#__CS_thread_status~0.base|) .cse11 (select (select |v_#memory_int_240| |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 .cse9 .cse10 (select (select (store |v_#memory_int_240| |c_~#__CS_thread_status~0.base| .cse9) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 6)))))) (store .cse7 .cse8 (select (select (store |v_#memory_int_240| |c_~#__CS_thread_status~0.base| .cse7) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ 7 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset|)))))) (store .cse5 .cse6 (select (select (store |v_#memory_int_240| |c_~#__CS_thread_status~0.base| .cse5) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 8)))))) (store .cse3 .cse4 (select (select (store |v_#memory_int_240| |c_~#__CS_thread_status~0.base| .cse3) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 9))))))) (store .cse0 |c_~#__CS_thread_lockedon~0.base| (store (select .cse0 |c_~#__CS_thread_lockedon~0.base|) .cse1 (select .cse2 .cse1)))) |v_#memory_int_177|) (= (store |v_#memory_int_177| |c_~#__CS_thread_lockedon~0.base| (store .cse2 .cse12 (select .cse13 .cse12))) |v_#memory_int_176|) (= (store |v_#memory_int_174| |c_~#__CS_thread_lockedon~0.base| (store .cse14 .cse15 (select (select |v_#memory_int_173| |c_~#__CS_thread_lockedon~0.base|) .cse15))) |v_#memory_int_173|) (= (let ((.cse16 (let ((.cse17 (let ((.cse18 (let ((.cse19 (let ((.cse21 (let ((.cse23 (store |v_#memory_int_173| |c_~#w~0.base| (store (select |v_#memory_int_173| |c_~#w~0.base|) .cse25 (select (select |v_#memory_int_173| |c_ULTIMATE.start_main_~#__CS_cp_w~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_w~0#1.offset| 4)))))) (store .cse23 |c_~#r~0.base| (store (select .cse23 |c_~#r~0.base|) .cse24 (select (select .cse23 |c_ULTIMATE.start_main_~#__CS_cp_r~0#1.base|) (+ 4 |c_ULTIMATE.start_main_~#__CS_cp_r~0#1.offset|))))))) (store .cse21 |c_~#x~0.base| (store (select .cse21 |c_~#x~0.base|) .cse22 (select (select .cse21 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base|) (+ 4 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.offset|))))))) (store .cse19 |c_~#y~0.base| (store (select .cse19 |c_~#y~0.base|) .cse20 (select (select .cse19 |c_ULTIMATE.start_main_~#__CS_cp_y~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_y~0#1.offset| 4))))))) (store .cse18 |c_~#__CS_thread_born_round~0.base| (store (select .cse18 |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| 0))))) (store .cse17 |c_~#__CS_thread_status~0.base| (store (select .cse17 |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| c_~__THREAD_RUNNING~0))))) (store .cse16 |c_~#__CS_thread_allocated~0.base| (store (select .cse16 |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| 1))) |c_#memory_int|) (= |v_#memory_int_175| (store |v_#memory_int_176| |c_~#__CS_thread_lockedon~0.base| (store .cse13 .cse26 (select .cse27 .cse26)))) (= (store |v_#memory_int_175| |c_~#__CS_thread_lockedon~0.base| (store .cse27 .cse28 (select .cse14 .cse28))) |v_#memory_int_174|)))) (or .cse29 (let ((.cse30 (+ |c_#StackHeapBarrier| 1)) (.cse34 ((as const (Array Int Int)) 0)) (.cse31 (select |c_#memory_int| 9)) (.cse33 (select |c_#memory_int| 7)) (.cse44 (select |c_#memory_int| 10)) (.cse35 (select |c_#memory_int| 11)) (.cse32 (select |c_#memory_int| 8))) (and (<= .cse30 |c_ULTIMATE.start_main_~#__CS_cp_y~0#1.base|) (<= .cse30 |c_ULTIMATE.start_main_~#__CS_cp_r~0#1.base|) (<= .cse30 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (= (select .cse31 0) 0) (exists ((v_~__CS_thread~0.offset_51 (Array Int Int))) (= (store (store (store (store (store v_~__CS_thread~0.offset_51 0 0) 1 0) 2 0) 3 0) 4 0) c_~__CS_thread~0.offset)) (= (select .cse32 4) 0) (= (select .cse33 0) 0) (exists ((|v_#memory_$Pointer$.base_293| (Array Int (Array Int Int)))) (= |c_#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_293| 6 .cse34))) (exists ((|v_#memory_$Pointer$.offset_293| (Array Int (Array Int Int)))) (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_293| 6 .cse34))) (<= .cse30 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) (<= .cse30 |c_ULTIMATE.start_main_~#__CS_cp_w~0#1.base|) (<= .cse30 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base|) (exists ((|v_#length_28| (Array Int Int))) (and (= (select |v_#length_28| 3) 5) (= (select |v_#length_28| 9) 8) (= 5 (select |v_#length_28| 4)) (= 40 (select |v_#length_28| 6)) (= 23 (select |v_#length_28| 2)) (= 2 (select |v_#length_28| 1)) (= (select |v_#length_28| 10) 8) (= (store (store (store (store (store (store |v_#length_28| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| 10) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| 40) |c_ULTIMATE.start_main_~#__CS_cp_w~0#1.base| 8) |c_ULTIMATE.start_main_~#__CS_cp_r~0#1.base| 8) |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base| 8) |c_ULTIMATE.start_main_~#__CS_cp_y~0#1.base| 8) |c_#length|) (= (select |v_#length_28| 7) 8) (= (select |v_#length_28| 8) 8) (= (select |v_#length_28| 5) 10) (= 8 (select |v_#length_28| 11)))) (= (select .cse35 0) 0) (exists ((|v_#memory_int_236| (Array Int (Array Int Int)))) (let ((.cse36 (select |v_#memory_int_236| 1)) (.cse37 (select |v_#memory_int_236| 3)) (.cse38 (select |v_#memory_int_236| 4))) (and (= (select .cse36 0) 48) (= 0 (select .cse37 3)) (= (select .cse38 4) 0) (= (select .cse36 1) 0) (= (select .cse38 1) 0) (= (select .cse38 0) 0) (= (select .cse37 0) 0) (= (select .cse37 2) 0) (= (select .cse38 3) 0) (= (select .cse37 1) 0) (= 0 (select .cse37 4)) (= (store |v_#memory_int_236| 5 .cse34) |c_#memory_int|) (= (select .cse38 2) 0)))) (exists ((v_~__CS_thread~0.base_51 (Array Int Int))) (= c_~__CS_thread~0.base (store (store (store (store (store v_~__CS_thread~0.base_51 0 0) 1 0) 2 0) 3 0) 4 0))) (= (select .cse31 4) 0) (= (select .cse33 4) 0) (exists ((|v_#valid_93| (Array Int Int))) (let ((.cse43 (store |v_#valid_93| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| 1))) (let ((.cse39 (store .cse43 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| 1))) (let ((.cse40 (store .cse39 |c_ULTIMATE.start_main_~#__CS_cp_w~0#1.base| 1))) (let ((.cse41 (store .cse40 |c_ULTIMATE.start_main_~#__CS_cp_r~0#1.base| 1))) (let ((.cse42 (store .cse41 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base| 1))) (and (= (select |v_#valid_93| 8) 1) (= (select |v_#valid_93| 5) 1) (= (select |v_#valid_93| 1) 1) (= (select |v_#valid_93| 7) 1) (= (select |v_#valid_93| 0) 0) (= (select |v_#valid_93| 9) 1) (= (select .cse39 |c_ULTIMATE.start_main_~#__CS_cp_w~0#1.base|) 0) (= (select |v_#valid_93| 2) 1) (= (select .cse40 |c_ULTIMATE.start_main_~#__CS_cp_r~0#1.base|) 0) (= (select .cse41 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base|) 0) (= (select |v_#valid_93| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) 0) (= (select |v_#valid_93| 6) 1) (= (select |v_#valid_93| 4) 1) (= (select |v_#valid_93| 3) 1) (= |c_#valid| (store .cse42 |c_ULTIMATE.start_main_~#__CS_cp_y~0#1.base| 1)) (= (select .cse43 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) 0) (= (select |v_#valid_93| 10) 1) (= (select .cse42 |c_ULTIMATE.start_main_~#__CS_cp_y~0#1.base|) 0) (= (select |v_#valid_93| 11) 1)))))))) (= (select .cse44 0) 0) (= (select .cse44 4) 0) (= (select .cse35 4) 0) (= (select .cse32 0) 0)))) (exists ((v_~__CS_thread~0.offset_52 (Array Int Int))) (= (store v_~__CS_thread~0.offset_52 0 |#funAddr~main_thread.offset|) c_~__CS_thread~0.offset)) (or .cse29 (and (= 2 c_~__THREAD_FINISHED~0) (= |c_~#__CS_thread_born_round~0.offset| 0) (<= 2 |c_ULTIMATE.start_main_~#__CS_cp_y~0#1.base|) (= c_~__CS_ret_FINISHED~0 4) (= |c_ULTIMATE.start_main_~#__CS_cp_y~0#1.offset| 0) (= 5 |c_~#__CS_thread_status~0.base|) (= 6 |c_~#__CS_thread_lockedon~0.base|) (= 0 |c_ULTIMATE.start_main_~#__CS_cp_r~0#1.offset|) (= 2 c_~__CS_ret_ERROR~0) (= |c_~#w~0.offset| 0) (= |c_ULTIMATE.start_main_~#__CS_cp_w~0#1.offset| 0) (= c_~__CS_ret~0 0) (= |c_~#y~0.offset| 0) (<= 1 |c_#StackHeapBarrier|) (= |c_ULTIMATE.start_main_~i~0#1| 0) (<= 2 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) (= |c_~#__CS_thread_born_round~0.base| 4) (= 0 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.offset|) (<= 2 |c_ULTIMATE.start_main_~#__CS_cp_r~0#1.base|) (= |c_~#__CS_u~0.base| 11) (= 3 |c_~#__CS_thread_allocated~0.base|) (= c_~__CS_error~0 0) (= c_~__THREAD_UNUSED~0 0) (<= 2 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base|) (= |c_~#r~0.offset| 0) (= 7 |c_~#w~0.base|) (= 0 |c_~#x~0.offset|) (= 1 c_~__THREAD_RUNNING~0) (= |c_~#__CS_thread_status~0.offset| 0) (= |c_~#y~0.base| 10) (= 9 |c_~#x~0.base|) (<= 2 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (<= 2 |c_ULTIMATE.start_main_~#__CS_cp_w~0#1.base|) (= |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 0) .cse45 .cse46 (= |c_~#__CS_thread_allocated~0.offset| 0) (= |c_~#__CS_u~0.offset| 0) (= c_~__CS_ret_PREEMPTED~0 1) (= |c_~#__CS_thread_lockedon~0.offset| 0) (= |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 0) (= |c_~#r~0.base| 8))) (<= 2 |c_ULTIMATE.start_main_~i~0#1|) (exists ((|v_#memory_$Pointer$.offset_190| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_191| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_192| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_193| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_183| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_184| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_185| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_186| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_187| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_297| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_188| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_189| (Array Int (Array Int Int)))) (let ((.cse47 (select |v_#memory_$Pointer$.offset_193| |c_~#__CS_thread_status~0.base|)) (.cse48 (select |v_#memory_$Pointer$.offset_191| |c_~#__CS_thread_status~0.base|)) (.cse50 (select |v_#memory_$Pointer$.offset_187| |c_~#__CS_thread_status~0.base|)) (.cse49 (select |v_#memory_$Pointer$.offset_189| |c_~#__CS_thread_status~0.base|))) (and (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_186| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.offset_186| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.offset| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|)))) (= (store |v_#memory_$Pointer$.offset_193| |c_~#__CS_thread_status~0.base| (store .cse47 .cse6 (select .cse48 .cse6))) |v_#memory_$Pointer$.offset_191|) (= (store |v_#memory_$Pointer$.offset_189| |c_~#__CS_thread_status~0.base| (store .cse49 .cse8 (select .cse47 .cse8))) |v_#memory_$Pointer$.offset_193|) (= (store |v_#memory_$Pointer$.offset_191| |c_~#__CS_thread_status~0.base| (store .cse48 .cse4 (select (select |v_#memory_$Pointer$.offset_190| |c_~#__CS_thread_status~0.base|) .cse4))) |v_#memory_$Pointer$.offset_190|) (= (store |v_#memory_$Pointer$.offset_185| |c_~#y~0.base| (store (select |v_#memory_$Pointer$.offset_185| |c_~#y~0.base|) .cse20 (select (select |v_#memory_$Pointer$.offset_183| |c_~#y~0.base|) .cse20))) |v_#memory_$Pointer$.offset_183|) (= (store |v_#memory_$Pointer$.offset_188| |c_~#r~0.base| (store (select |v_#memory_$Pointer$.offset_188| |c_~#r~0.base|) .cse24 (select (select |v_#memory_$Pointer$.offset_192| |c_~#r~0.base|) .cse24))) |v_#memory_$Pointer$.offset_192|) (= (store |v_#memory_$Pointer$.offset_297| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_297| |c_~#__CS_thread_status~0.base|) .cse11 (select .cse50 .cse11))) |v_#memory_$Pointer$.offset_187|) (= (store |v_#memory_$Pointer$.offset_187| |c_~#__CS_thread_status~0.base| (store .cse50 .cse10 (select .cse49 .cse10))) |v_#memory_$Pointer$.offset_189|) (= (store |v_#memory_$Pointer$.offset_184| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_184| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.offset_186| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|))) |v_#memory_$Pointer$.offset_186|) (= (let ((.cse51 (store |v_#memory_$Pointer$.offset_190| |c_~#__CS_thread_lockedon~0.base| (let ((.cse52 (let ((.cse54 (let ((.cse56 (let ((.cse58 (store (select |v_#memory_$Pointer$.offset_190| |c_~#__CS_thread_lockedon~0.base|) .cse1 (select (select |v_#memory_$Pointer$.offset_190| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse60)))) (store .cse58 .cse12 (select (select (store |v_#memory_$Pointer$.offset_190| |c_~#__CS_thread_lockedon~0.base| .cse58) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse59))))) (store .cse56 .cse26 (select (select (store |v_#memory_$Pointer$.offset_190| |c_~#__CS_thread_lockedon~0.base| .cse56) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse57))))) (store .cse54 .cse28 (select (select (store |v_#memory_$Pointer$.offset_190| |c_~#__CS_thread_lockedon~0.base| .cse54) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse55))))) (store .cse52 .cse15 (select (select (store |v_#memory_$Pointer$.offset_190| |c_~#__CS_thread_lockedon~0.base| .cse52) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse53)))))) (store .cse51 |c_~#w~0.base| (store (select .cse51 |c_~#w~0.base|) .cse25 (select (select |v_#memory_$Pointer$.offset_188| |c_~#w~0.base|) .cse25)))) |v_#memory_$Pointer$.offset_188|) (= (store |v_#memory_$Pointer$.offset_192| |c_~#x~0.base| (store (select |v_#memory_$Pointer$.offset_192| |c_~#x~0.base|) .cse22 (select (select |v_#memory_$Pointer$.offset_185| |c_~#x~0.base|) .cse22))) |v_#memory_$Pointer$.offset_185|) (= |v_#memory_$Pointer$.offset_184| (store |v_#memory_$Pointer$.offset_183| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.offset_183| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.offset_184| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|))))))) (exists ((|v_#memory_$Pointer$.base_185| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_184| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_183| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_193| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_192| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_191| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_190| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_189| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_188| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_187| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_297| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_186| (Array Int (Array Int Int)))) (let ((.cse61 (select |v_#memory_$Pointer$.base_188| |c_~#__CS_thread_status~0.base|)) (.cse62 (select |v_#memory_$Pointer$.base_186| |c_~#__CS_thread_status~0.base|)) (.cse69 (select |v_#memory_$Pointer$.base_192| |c_~#__CS_thread_status~0.base|)) (.cse68 (select |v_#memory_$Pointer$.base_191| |c_~#__CS_thread_status~0.base|))) (and (= (store |v_#memory_$Pointer$.base_188| |c_~#__CS_thread_status~0.base| (store .cse61 .cse6 (select .cse62 .cse6))) |v_#memory_$Pointer$.base_186|) (= (let ((.cse63 (store |v_#memory_$Pointer$.base_189| |c_~#__CS_thread_lockedon~0.base| (let ((.cse64 (let ((.cse65 (let ((.cse66 (let ((.cse67 (store (select |v_#memory_$Pointer$.base_189| |c_~#__CS_thread_lockedon~0.base|) .cse1 (select (select |v_#memory_$Pointer$.base_189| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse60)))) (store .cse67 .cse12 (select (select (store |v_#memory_$Pointer$.base_189| |c_~#__CS_thread_lockedon~0.base| .cse67) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse59))))) (store .cse66 .cse26 (select (select (store |v_#memory_$Pointer$.base_189| |c_~#__CS_thread_lockedon~0.base| .cse66) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse57))))) (store .cse65 .cse28 (select (select (store |v_#memory_$Pointer$.base_189| |c_~#__CS_thread_lockedon~0.base| .cse65) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse55))))) (store .cse64 .cse15 (select (select (store |v_#memory_$Pointer$.base_189| |c_~#__CS_thread_lockedon~0.base| .cse64) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse53)))))) (store .cse63 |c_~#w~0.base| (store (select .cse63 |c_~#w~0.base|) .cse25 (select (select |v_#memory_$Pointer$.base_187| |c_~#w~0.base|) .cse25)))) |v_#memory_$Pointer$.base_187|) (= (store |v_#memory_$Pointer$.base_187| |c_~#r~0.base| (store (select |v_#memory_$Pointer$.base_187| |c_~#r~0.base|) .cse24 (select (select |v_#memory_$Pointer$.base_190| |c_~#r~0.base|) .cse24))) |v_#memory_$Pointer$.base_190|) (= (store |v_#memory_$Pointer$.base_191| |c_~#__CS_thread_status~0.base| (store .cse68 .cse8 (select .cse61 .cse8))) |v_#memory_$Pointer$.base_188|) (= (store |v_#memory_$Pointer$.base_297| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_297| |c_~#__CS_thread_status~0.base|) .cse11 (select .cse69 .cse11))) |v_#memory_$Pointer$.base_192|) (= (store |v_#memory_$Pointer$.base_190| |c_~#x~0.base| (store (select |v_#memory_$Pointer$.base_190| |c_~#x~0.base|) .cse22 (select (select |v_#memory_$Pointer$.base_183| |c_~#x~0.base|) .cse22))) |v_#memory_$Pointer$.base_183|) (= (store |v_#memory_$Pointer$.base_185| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.base_185| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.base_193| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|))) |v_#memory_$Pointer$.base_193|) (= |c_#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_184| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.base_184| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.base| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|)))) (= (store |v_#memory_$Pointer$.base_183| |c_~#y~0.base| (store (select |v_#memory_$Pointer$.base_183| |c_~#y~0.base|) .cse20 (select (select |v_#memory_$Pointer$.base_185| |c_~#y~0.base|) .cse20))) |v_#memory_$Pointer$.base_185|) (= (store |v_#memory_$Pointer$.base_193| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_193| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.base_184| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|))) |v_#memory_$Pointer$.base_184|) (= (store |v_#memory_$Pointer$.base_186| |c_~#__CS_thread_status~0.base| (store .cse62 .cse4 (select (select |v_#memory_$Pointer$.base_189| |c_~#__CS_thread_status~0.base|) .cse4))) |v_#memory_$Pointer$.base_189|) (= (store |v_#memory_$Pointer$.base_192| |c_~#__CS_thread_status~0.base| (store .cse69 .cse10 (select .cse68 .cse10))) |v_#memory_$Pointer$.base_191|)))) (exists ((v_~__CS_thread~0.base_52 (Array Int Int))) (= c_~__CS_thread~0.base (store v_~__CS_thread~0.base_52 0 |#funAddr~main_thread.base|))) (<= 5 |c_ULTIMATE.start_main_~j~2#1|) .cse45 .cse46)) is different from false [2023-11-12 00:13:06,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:13:06,310 INFO L93 Difference]: Finished difference Result 282 states and 428 transitions. [2023-11-12 00:13:06,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:13:06,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 73 [2023-11-12 00:13:06,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:13:06,312 INFO L225 Difference]: With dead ends: 282 [2023-11-12 00:13:06,313 INFO L226 Difference]: Without dead ends: 145 [2023-11-12 00:13:06,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=27, Invalid=35, Unknown=2, NotChecked=26, Total=90 [2023-11-12 00:13:06,315 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 0 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:13:06,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 464 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 1 Unknown, 68 Unchecked, 3.0s Time] [2023-11-12 00:13:06,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-11-12 00:13:06,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2023-11-12 00:13:06,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 86 states have (on average 1.3372093023255813) internal successors, (115), 86 states have internal predecessors, (115), 52 states have call successors, (52), 6 states have call predecessors, (52), 6 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-12 00:13:06,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 219 transitions. [2023-11-12 00:13:06,339 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 219 transitions. Word has length 73 [2023-11-12 00:13:06,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:13:06,340 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 219 transitions. [2023-11-12 00:13:06,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-12 00:13:06,340 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 219 transitions. [2023-11-12 00:13:06,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-12 00:13:06,343 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:13:06,343 INFO L195 NwaCegarLoop]: trace histogram [15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:13:06,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 00:13:06,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:13:06,561 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:13:06,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:13:06,562 INFO L85 PathProgramCache]: Analyzing trace with hash -558819083, now seen corresponding path program 1 times [2023-11-12 00:13:06,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:13:06,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270004029] [2023-11-12 00:13:06,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:06,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:13:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:06,883 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-11-12 00:13:06,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:13:06,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270004029] [2023-11-12 00:13:06,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270004029] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:13:06,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529885848] [2023-11-12 00:13:06,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:06,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:13:06,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:13:06,885 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:13:06,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c6cddf-cad2-41e1-89e4-77fdd996af0f/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:13:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:07,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:13:07,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:13:07,349 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-11-12 00:13:07,349 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:13:07,434 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-11-12 00:13:07,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529885848] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:13:07,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1942870615] [2023-11-12 00:13:07,439 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2023-11-12 00:13:07,439 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:13:07,440 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:13:07,440 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:13:07,440 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs