./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_fib-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_c264af09-0d3e-4e37-a88b-796db337405c/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c264af09-0d3e-4e37-a88b-796db337405c/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_c264af09-0d3e-4e37-a88b-796db337405c/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c264af09-0d3e-4e37-a88b-796db337405c/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_fib-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c264af09-0d3e-4e37-a88b-796db337405c/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_c264af09-0d3e-4e37-a88b-796db337405c/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 2f188ac4b0bdfe335e0fcb7c5645493965a99a7b8a1d7a552e9d512c30775fb8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:43:46,853 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:43:46,976 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c264af09-0d3e-4e37-a88b-796db337405c/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:43:46,987 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:43:46,988 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:43:47,032 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:43:47,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:43:47,035 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:43:47,036 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:43:47,043 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:43:47,044 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:43:47,045 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:43:47,045 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:43:47,047 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:43:47,048 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:43:47,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:43:47,049 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:43:47,049 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:43:47,050 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:43:47,050 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:43:47,051 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:43:47,052 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:43:47,052 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:43:47,053 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:43:47,053 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:43:47,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:43:47,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:43:47,055 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:43:47,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:43:47,056 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:43:47,058 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:43:47,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:43:47,058 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:43:47,059 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_c264af09-0d3e-4e37-a88b-796db337405c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c264af09-0d3e-4e37-a88b-796db337405c/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f188ac4b0bdfe335e0fcb7c5645493965a99a7b8a1d7a552e9d512c30775fb8 [2023-11-19 02:43:47,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:43:47,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:43:47,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:43:47,436 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:43:47,437 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:43:47,438 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c264af09-0d3e-4e37-a88b-796db337405c/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/seq-pthread/cs_fib-2.i [2023-11-19 02:43:50,757 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:43:51,194 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:43:51,195 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c264af09-0d3e-4e37-a88b-796db337405c/sv-benchmarks/c/seq-pthread/cs_fib-2.i [2023-11-19 02:43:51,225 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c264af09-0d3e-4e37-a88b-796db337405c/bin/ukojak-verify-G8NBE6pJGL/data/c56efe052/4288c39ce74d4e91bc8f9e163b0dcb32/FLAG0d49425ab [2023-11-19 02:43:51,241 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c264af09-0d3e-4e37-a88b-796db337405c/bin/ukojak-verify-G8NBE6pJGL/data/c56efe052/4288c39ce74d4e91bc8f9e163b0dcb32 [2023-11-19 02:43:51,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:43:51,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:43:51,251 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:43:51,251 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:43:51,256 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:43:51,257 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:43:51" (1/1) ... [2023-11-19 02:43:51,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eaecb00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:43:51, skipping insertion in model container [2023-11-19 02:43:51,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:43:51" (1/1) ... [2023-11-19 02:43:51,336 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:43:51,693 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_c264af09-0d3e-4e37-a88b-796db337405c/sv-benchmarks/c/seq-pthread/cs_fib-2.i[23457,23470] [2023-11-19 02:43:51,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:43:51,853 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:43:51,884 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_c264af09-0d3e-4e37-a88b-796db337405c/sv-benchmarks/c/seq-pthread/cs_fib-2.i[23457,23470] [2023-11-19 02:43:51,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:43:52,018 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:43:52,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:43:52 WrapperNode [2023-11-19 02:43:52,019 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:43:52,020 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:43:52,020 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:43:52,020 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:43:52,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:43:52" (1/1) ... [2023-11-19 02:43:52,059 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:43:52" (1/1) ... [2023-11-19 02:43:52,144 INFO L138 Inliner]: procedures = 144, calls = 356, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 679 [2023-11-19 02:43:52,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:43:52,145 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:43:52,145 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:43:52,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:43:52,156 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:43:52" (1/1) ... [2023-11-19 02:43:52,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:43:52" (1/1) ... [2023-11-19 02:43:52,168 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:43:52" (1/1) ... [2023-11-19 02:43:52,168 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:43:52" (1/1) ... [2023-11-19 02:43:52,208 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:43:52" (1/1) ... [2023-11-19 02:43:52,214 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:43:52" (1/1) ... [2023-11-19 02:43:52,219 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:43:52" (1/1) ... [2023-11-19 02:43:52,224 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:43:52" (1/1) ... [2023-11-19 02:43:52,233 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:43:52,234 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:43:52,235 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:43:52,235 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:43:52,236 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:43:52" (1/1) ... [2023-11-19 02:43:52,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:43:52,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c264af09-0d3e-4e37-a88b-796db337405c/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:43:52,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c264af09-0d3e-4e37-a88b-796db337405c/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:43:52,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c264af09-0d3e-4e37-a88b-796db337405c/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:43:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 02:43:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 02:43:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 02:43:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 02:43:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 02:43:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 02:43:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:43:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:43:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 02:43:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-19 02:43:52,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-19 02:43:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 02:43:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-19 02:43:52,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-19 02:43:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:43:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-19 02:43:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-19 02:43:52,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:43:52,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:43:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:43:52,545 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:43:52,548 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:43:53,023 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: 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; [2023-11-19 02:43:53,023 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: 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 02:43:53,024 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: 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; [2023-11-19 02:43:53,024 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: 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 02:43:53,024 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L749: SUMMARY for call __CS_cs(); srcloc: null [2023-11-19 02:43:53,024 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L749-1: 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; [2023-11-19 02:43:53,025 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L749-1: 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 02:44:04,657 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:44:04,857 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:44:04,858 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 02:44:04,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:44:04 BoogieIcfgContainer [2023-11-19 02:44:04,865 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:44:04,865 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:44:04,866 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:44:04,876 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:44:04,876 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:44:04" (1/1) ... [2023-11-19 02:44:04,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:44:04,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:44:04,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 159 states and 239 transitions. [2023-11-19 02:44:04,951 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 239 transitions. [2023-11-19 02:44:04,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-19 02:44:04,971 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:44:04,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:44:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:44:06,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2023-11-19 02:44:16,950 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 02:44:17,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:44:17,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 160 states and 240 transitions. [2023-11-19 02:44:17,152 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 240 transitions. [2023-11-19 02:44:17,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-19 02:44:17,171 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:44:17,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:44:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:44:18,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2023-11-19 02:44:18,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:44:18,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 161 states and 242 transitions. [2023-11-19 02:44:18,652 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 242 transitions. [2023-11-19 02:44:18,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-19 02:44:18,659 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:44:18,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:44:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:44:20,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1562 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2023-11-19 02:44:20,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:44:20,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 162 states and 244 transitions. [2023-11-19 02:44:20,220 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 244 transitions. [2023-11-19 02:44:20,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-19 02:44:20,225 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:44:20,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:44:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:44:21,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1563 trivial. 0 not checked. [2023-11-19 02:44:32,373 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 02:44:32,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:44:32,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 166 states and 252 transitions. [2023-11-19 02:44:32,492 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 252 transitions. [2023-11-19 02:44:32,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-11-19 02:44:32,497 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:44:32,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:44:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:44:34,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1578 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2023-11-19 02:44:34,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:44:34,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 167 states and 252 transitions. [2023-11-19 02:44:34,566 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 252 transitions. [2023-11-19 02:44:34,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-19 02:44:34,572 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:44:34,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:44:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:44:36,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-19 02:44:47,735 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 02:44:47,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:44:47,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 171 states and 259 transitions. [2023-11-19 02:44:47,848 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 259 transitions. [2023-11-19 02:44:47,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-19 02:44:47,852 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:44:47,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:44:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:44:49,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1611 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 1571 trivial. 0 not checked.