./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_queue-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a22b265a-a987-43db-88a1-c8900e76dc27/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a22b265a-a987-43db-88a1-c8900e76dc27/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a22b265a-a987-43db-88a1-c8900e76dc27/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a22b265a-a987-43db-88a1-c8900e76dc27/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_queue-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a22b265a-a987-43db-88a1-c8900e76dc27/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a22b265a-a987-43db-88a1-c8900e76dc27/bin/ukojak-verify-0OAaufAVZV --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 38d92478d67c3996e3815aaa6d0075347cfc456da7f20d1b1bb733d11593b6cf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:07:16,393 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:07:16,517 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a22b265a-a987-43db-88a1-c8900e76dc27/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-12 00:07:16,524 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:07:16,525 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-12 00:07:16,565 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:07:16,566 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:07:16,567 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-12 00:07:16,568 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:07:16,573 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:07:16,574 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:07:16,575 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:07:16,575 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:07:16,577 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:07:16,578 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:07:16,578 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:07:16,579 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:07:16,579 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:07:16,579 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:07:16,580 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:07:16,580 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:07:16,581 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:07:16,581 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-12 00:07:16,582 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-12 00:07:16,583 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:07:16,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:07:16,584 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:07:16,584 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:07:16,585 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:07:16,585 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-12 00:07:16,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:07:16,587 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:07:16,587 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_a22b265a-a987-43db-88a1-c8900e76dc27/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a22b265a-a987-43db-88a1-c8900e76dc27/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38d92478d67c3996e3815aaa6d0075347cfc456da7f20d1b1bb733d11593b6cf [2023-11-12 00:07:16,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:07:16,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:07:16,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:07:16,953 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:07:16,954 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:07:16,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a22b265a-a987-43db-88a1-c8900e76dc27/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/seq-pthread/cs_queue-1.i [2023-11-12 00:07:20,207 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:07:20,565 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:07:20,578 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a22b265a-a987-43db-88a1-c8900e76dc27/sv-benchmarks/c/seq-pthread/cs_queue-1.i [2023-11-12 00:07:20,609 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a22b265a-a987-43db-88a1-c8900e76dc27/bin/ukojak-verify-0OAaufAVZV/data/76a6b0948/16fcc4b75a8d4eea85d2c9e013a794cd/FLAGcc9518bdb [2023-11-12 00:07:20,629 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a22b265a-a987-43db-88a1-c8900e76dc27/bin/ukojak-verify-0OAaufAVZV/data/76a6b0948/16fcc4b75a8d4eea85d2c9e013a794cd [2023-11-12 00:07:20,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:07:20,637 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:07:20,641 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:07:20,641 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:07:20,651 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:07:20,652 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:07:20" (1/1) ... [2023-11-12 00:07:20,653 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ca2da6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:20, skipping insertion in model container [2023-11-12 00:07:20,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:07:20" (1/1) ... [2023-11-12 00:07:20,733 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:07:21,285 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_a22b265a-a987-43db-88a1-c8900e76dc27/sv-benchmarks/c/seq-pthread/cs_queue-1.i[34744,34757] [2023-11-12 00:07:21,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:07:21,543 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:07:21,636 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_a22b265a-a987-43db-88a1-c8900e76dc27/sv-benchmarks/c/seq-pthread/cs_queue-1.i[34744,34757] [2023-11-12 00:07:21,752 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:07:21,827 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:07:21,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:21 WrapperNode [2023-11-12 00:07:21,828 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:07:21,829 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:07:21,829 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:07:21,829 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:07:21,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:21" (1/1) ... [2023-11-12 00:07:21,907 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:21" (1/1) ... [2023-11-12 00:07:21,982 INFO L138 Inliner]: procedures = 251, calls = 534, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 1166 [2023-11-12 00:07:21,983 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:07:21,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:07:21,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:07:21,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:07:21,993 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:21" (1/1) ... [2023-11-12 00:07:21,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:21" (1/1) ... [2023-11-12 00:07:22,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:21" (1/1) ... [2023-11-12 00:07:22,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:21" (1/1) ... [2023-11-12 00:07:22,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:21" (1/1) ... [2023-11-12 00:07:22,119 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:21" (1/1) ... [2023-11-12 00:07:22,126 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:21" (1/1) ... [2023-11-12 00:07:22,140 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:21" (1/1) ... [2023-11-12 00:07:22,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:07:22,161 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:07:22,162 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:07:22,162 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:07:22,163 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:21" (1/1) ... [2023-11-12 00:07:22,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:07:22,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a22b265a-a987-43db-88a1-c8900e76dc27/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-12 00:07:22,202 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a22b265a-a987-43db-88a1-c8900e76dc27/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-12 00:07:22,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a22b265a-a987-43db-88a1-c8900e76dc27/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-12 00:07:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:07:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:07:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:07:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure empty [2023-11-12 00:07:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure empty [2023-11-12 00:07:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2023-11-12 00:07:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2023-11-12 00:07:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:07:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:07:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:07:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2023-11-12 00:07:22,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2023-11-12 00:07:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:07:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:07:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:07:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:07:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:07:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:07:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-12 00:07:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-12 00:07:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-12 00:07:22,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-12 00:07:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-12 00:07:22,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-12 00:07:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-12 00:07:22,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-12 00:07:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:07:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:07:22,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:07:22,499 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:07:22,502 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:07:22,601 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: 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 00:07:22,601 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: 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 00:07:22,601 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);#res := 0; [2023-11-12 00:07:22,602 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);#res := 0; [2023-11-12 00:07:23,363 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093: SUMMARY for call __CS_cs(); srcloc: null [2023-11-12 00:07:23,363 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t2_#res#1.base, t2_#res#1.offset := 0, 0; [2023-11-12 00:07:23,365 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-12 00:07:23,365 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129: SUMMARY for call __CS_cs(); srcloc: null [2023-11-12 00:07:23,365 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-11-12 00:07:23,365 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-12 00:07:23,366 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t2_#res#1.base, t2_#res#1.offset := 0, 0; [2023-11-12 00:07:23,366 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: 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 00:07:23,375 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##83: 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 00:07:23,375 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##82: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);dequeue_#res#1 := 0; [2023-11-12 00:07:23,376 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: 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 00:07:23,376 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t2_#res#1.base, t2_#res#1.offset := 0, 0; [2023-11-12 00:07:23,376 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-12 00:07:23,376 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-11-12 00:07:23,376 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: 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 00:07:23,377 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-11-12 00:07:23,377 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##149: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);enqueue_#res#1 := 0; [2023-11-12 00:07:23,377 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##150: 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 00:07:23,377 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##166: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t1_#res#1.base, t1_#res#1.offset := 0, 0; [2023-11-12 00:07:23,377 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##167: 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 00:07:23,377 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##109: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t2_#res#1.base, t2_#res#1.offset := 0, 0; [2023-11-12 00:07:23,378 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: 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 00:07:35,987 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:07:36,212 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:07:36,212 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-12 00:07:36,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:07:36 BoogieIcfgContainer [2023-11-12 00:07:36,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:07:36,219 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-12 00:07:36,219 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-12 00:07:36,229 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-12 00:07:36,230 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:07:36" (1/1) ... [2023-11-12 00:07:36,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:07:36,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:36,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 316 states and 509 transitions. [2023-11-12 00:07:36,341 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 509 transitions. [2023-11-12 00:07:36,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-11-12 00:07:36,375 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:36,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:39,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2652 trivial. 0 not checked. [2023-11-12 00:07:49,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:07:49,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:49,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 317 states and 510 transitions. [2023-11-12 00:07:49,945 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 510 transitions. [2023-11-12 00:07:49,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-11-12 00:07:49,952 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:49,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:51,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2653 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2652 trivial. 0 not checked. [2023-11-12 00:07:51,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:51,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 318 states and 512 transitions. [2023-11-12 00:07:51,983 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 512 transitions. [2023-11-12 00:07:51,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-11-12 00:07:51,999 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:52,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:55,143 INFO L134 CoverageAnalysis]: Checked inductivity of 2654 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2652 trivial. 0 not checked. [2023-11-12 00:07:55,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:55,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 319 states and 514 transitions. [2023-11-12 00:07:55,255 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 514 transitions. [2023-11-12 00:07:55,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-11-12 00:07:55,260 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:55,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:57,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2656 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2655 trivial. 0 not checked. [2023-11-12 00:07:57,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:57,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 320 states and 516 transitions. [2023-11-12 00:07:57,789 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 516 transitions. [2023-11-12 00:07:57,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-11-12 00:07:57,794 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:57,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:08:00,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2657 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2655 trivial. 0 not checked. [2023-11-12 00:08:00,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:08:00,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 321 states and 518 transitions. [2023-11-12 00:08:00,100 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 518 transitions. [2023-11-12 00:08:00,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2023-11-12 00:08:00,107 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:08:00,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:08:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:08:02,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2659 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2658 trivial. 0 not checked. [2023-11-12 00:08:02,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:08:02,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 322 states and 520 transitions. [2023-11-12 00:08:02,173 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 520 transitions. [2023-11-12 00:08:02,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-11-12 00:08:02,211 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:08:02,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:08:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:08:03,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2660 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2658 trivial. 0 not checked. [2023-11-12 00:08:03,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:08:03,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 323 states and 522 transitions. [2023-11-12 00:08:03,935 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 522 transitions. [2023-11-12 00:08:03,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-11-12 00:08:03,941 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:08:03,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:08:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:08:06,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2662 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2661 trivial. 0 not checked.