./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_stateful-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b22054-b1d3-41d6-937c-f8c7d6ab2aec/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b22054-b1d3-41d6-937c-f8c7d6ab2aec/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b22054-b1d3-41d6-937c-f8c7d6ab2aec/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b22054-b1d3-41d6-937c-f8c7d6ab2aec/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_stateful-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b22054-b1d3-41d6-937c-f8c7d6ab2aec/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b22054-b1d3-41d6-937c-f8c7d6ab2aec/bin/ukojak-verify-G8NBE6pJGL --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 c1d6cba599289c2637bd3d8da41e464d318a32e6ae6e6e0e391ff437e6ce1fcc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:57:35,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:57:35,314 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b22054-b1d3-41d6-937c-f8c7d6ab2aec/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:57:35,319 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:57:35,320 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:57:35,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:57:35,348 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:57:35,349 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:57:35,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:57:35,351 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:57:35,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:57:35,352 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:57:35,352 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:57:35,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:57:35,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:57:35,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:57:35,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:57:35,355 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:57:35,355 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:57:35,356 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:57:35,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:57:35,357 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:57:35,358 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:57:35,358 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:57:35,358 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:57:35,359 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:57:35,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:35,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:57:35,360 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:57:35,361 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:57:35,361 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:57:35,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:57:35,362 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:57:35,362 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_87b22054-b1d3-41d6-937c-f8c7d6ab2aec/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b22054-b1d3-41d6-937c-f8c7d6ab2aec/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1d6cba599289c2637bd3d8da41e464d318a32e6ae6e6e0e391ff437e6ce1fcc [2023-11-19 03:57:35,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:57:35,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:57:35,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:57:35,811 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:57:35,812 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:57:35,813 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b22054-b1d3-41d6-937c-f8c7d6ab2aec/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/seq-pthread/cs_stateful-2.i [2023-11-19 03:57:38,885 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:57:39,190 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:57:39,191 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b22054-b1d3-41d6-937c-f8c7d6ab2aec/sv-benchmarks/c/seq-pthread/cs_stateful-2.i [2023-11-19 03:57:39,219 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b22054-b1d3-41d6-937c-f8c7d6ab2aec/bin/ukojak-verify-G8NBE6pJGL/data/bff70393d/b7b5c081dd064a39805946b4b92ecdad/FLAG42adf2c45 [2023-11-19 03:57:39,234 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b22054-b1d3-41d6-937c-f8c7d6ab2aec/bin/ukojak-verify-G8NBE6pJGL/data/bff70393d/b7b5c081dd064a39805946b4b92ecdad [2023-11-19 03:57:39,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:57:39,239 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:57:39,240 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:57:39,241 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:57:39,246 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:57:39,247 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:39,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70850b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39, skipping insertion in model container [2023-11-19 03:57:39,248 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:39,310 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:57:39,707 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_87b22054-b1d3-41d6-937c-f8c7d6ab2aec/sv-benchmarks/c/seq-pthread/cs_stateful-2.i[23607,23620] [2023-11-19 03:57:39,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:57:39,895 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:57:39,942 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_87b22054-b1d3-41d6-937c-f8c7d6ab2aec/sv-benchmarks/c/seq-pthread/cs_stateful-2.i[23607,23620] [2023-11-19 03:57:40,025 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:57:40,067 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:57:40,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:40 WrapperNode [2023-11-19 03:57:40,068 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:57:40,069 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:57:40,069 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:57:40,070 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:57:40,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:40" (1/1) ... [2023-11-19 03:57:40,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:40" (1/1) ... [2023-11-19 03:57:40,215 INFO L138 Inliner]: procedures = 145, calls = 245, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 546 [2023-11-19 03:57:40,219 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:57:40,220 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:57:40,220 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:57:40,220 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:57:40,232 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:40" (1/1) ... [2023-11-19 03:57:40,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:40" (1/1) ... [2023-11-19 03:57:40,257 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:40" (1/1) ... [2023-11-19 03:57:40,268 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:40" (1/1) ... [2023-11-19 03:57:40,300 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:40" (1/1) ... [2023-11-19 03:57:40,345 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:40" (1/1) ... [2023-11-19 03:57:40,349 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:40" (1/1) ... [2023-11-19 03:57:40,368 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:40" (1/1) ... [2023-11-19 03:57:40,375 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:57:40,402 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:57:40,402 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:57:40,403 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:57:40,404 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:40" (1/1) ... [2023-11-19 03:57:40,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:40,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b22054-b1d3-41d6-937c-f8c7d6ab2aec/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:57:40,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b22054-b1d3-41d6-937c-f8c7d6ab2aec/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:57:40,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b22054-b1d3-41d6-937c-f8c7d6ab2aec/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:57:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:57:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:57:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 03:57:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 03:57:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:57:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:57:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 03:57:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_init [2023-11-19 03:57:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_init [2023-11-19 03:57:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2023-11-19 03:57:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2023-11-19 03:57:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-19 03:57:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-19 03:57:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 03:57:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-19 03:57:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-19 03:57:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-19 03:57:40,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-19 03:57:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:57:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 03:57:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-19 03:57:40,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-19 03:57:40,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:57:40,506 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2023-11-19 03:57:40,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2023-11-19 03:57:40,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:57:40,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:57:40,712 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:57:40,715 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:57:41,171 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L750: SUMMARY for call __CS_cs(); srcloc: null [2023-11-19 03:57:41,172 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L750-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2023-11-19 03:57:41,172 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L750-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-19 03:57:41,172 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-19 03:57:41,172 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2023-11-19 03:57:41,173 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-19 03:57:41,173 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2023-11-19 03:57:47,870 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:57:48,009 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:57:48,009 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:57:48,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:48 BoogieIcfgContainer [2023-11-19 03:57:48,016 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:57:48,017 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:57:48,017 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:57:48,028 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:57:48,028 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:48" (1/1) ... [2023-11-19 03:57:48,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:57:48,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:48,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 149 states and 227 transitions. [2023-11-19 03:57:48,119 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 227 transitions. [2023-11-19 03:57:48,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 03:57:48,137 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:48,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:48,881 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-19 03:57:59,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 03:57:59,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:59,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 150 states and 228 transitions. [2023-11-19 03:57:59,077 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 228 transitions. [2023-11-19 03:57:59,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-19 03:57:59,082 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:59,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:59,412 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-19 03:57:59,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:59,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 151 states and 230 transitions. [2023-11-19 03:57:59,481 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 230 transitions. [2023-11-19 03:57:59,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 03:57:59,485 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:59,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:59,865 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-19 03:57:59,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:59,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 152 states and 232 transitions. [2023-11-19 03:57:59,976 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 232 transitions. [2023-11-19 03:57:59,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 03:57:59,981 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:59,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:58:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:00,383 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-11-19 03:58:01,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:58:01,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 156 states and 239 transitions. [2023-11-19 03:58:01,388 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 239 transitions. [2023-11-19 03:58:01,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:58:01,391 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:58:01,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:58:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:01,826 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-11-19 03:58:02,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:58:02,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 157 states and 239 transitions. [2023-11-19 03:58:02,033 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 239 transitions. [2023-11-19 03:58:02,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 03:58:02,035 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:58:02,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:58:02,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:02,520 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-11-19 03:58:02,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:58:02,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 158 states and 239 transitions. [2023-11-19 03:58:02,707 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 239 transitions. [2023-11-19 03:58:02,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 03:58:02,711 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:58:02,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:58:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:03,421 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-11-19 03:58:15,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 03:58:26,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 03:58:26,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:58:26,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 184 states and 280 transitions. [2023-11-19 03:58:26,422 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 280 transitions. [2023-11-19 03:58:26,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-19 03:58:26,427 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:58:26,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:58:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:27,285 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2023-11-19 03:58:40,583 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 []