./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_fib-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e37bb57-c48f-412c-8b98-1530d9e80a87/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e37bb57-c48f-412c-8b98-1530d9e80a87/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_2e37bb57-c48f-412c-8b98-1530d9e80a87/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e37bb57-c48f-412c-8b98-1530d9e80a87/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_fib-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e37bb57-c48f-412c-8b98-1530d9e80a87/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_2e37bb57-c48f-412c-8b98-1530d9e80a87/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 da5783328d73eba8f05689c8b63c9b7f7c1c1eeab4600bb7173d3ddf64fb59e0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:51:40,476 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:51:40,569 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e37bb57-c48f-412c-8b98-1530d9e80a87/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-11 23:51:40,575 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:51:40,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:51:40,622 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:51:40,623 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:51:40,623 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:51:40,624 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:51:40,625 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:51:40,626 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:51:40,626 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:51:40,627 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-11 23:51:40,627 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:51:40,628 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-11 23:51:40,628 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:51:40,629 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:51:40,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:51:40,630 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:51:40,631 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-11 23:51:40,631 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:51:40,638 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:51:40,639 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:51:40,640 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:51:40,642 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:51:40,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:51:40,643 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:51:40,644 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:51:40,648 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:51:40,649 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:51:40,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:51:40,651 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:51:40,651 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_2e37bb57-c48f-412c-8b98-1530d9e80a87/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e37bb57-c48f-412c-8b98-1530d9e80a87/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da5783328d73eba8f05689c8b63c9b7f7c1c1eeab4600bb7173d3ddf64fb59e0 [2023-11-11 23:51:40,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:51:40,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:51:40,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:51:40,983 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:51:40,984 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:51:40,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e37bb57-c48f-412c-8b98-1530d9e80a87/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/seq-pthread/cs_fib-1.i [2023-11-11 23:51:44,253 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:51:44,654 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:51:44,658 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e37bb57-c48f-412c-8b98-1530d9e80a87/sv-benchmarks/c/seq-pthread/cs_fib-1.i [2023-11-11 23:51:44,683 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e37bb57-c48f-412c-8b98-1530d9e80a87/bin/ukojak-verify-0OAaufAVZV/data/679614ede/a30c65981be7498a80b821e68bde038d/FLAG5a5f82302 [2023-11-11 23:51:44,702 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e37bb57-c48f-412c-8b98-1530d9e80a87/bin/ukojak-verify-0OAaufAVZV/data/679614ede/a30c65981be7498a80b821e68bde038d [2023-11-11 23:51:44,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:51:44,710 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:51:44,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:51:44,712 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:51:44,718 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:51:44,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:51:44" (1/1) ... [2023-11-11 23:51:44,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e9c336c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:44, skipping insertion in model container [2023-11-11 23:51:44,722 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:51:44" (1/1) ... [2023-11-11 23:51:44,803 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:51:45,269 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_2e37bb57-c48f-412c-8b98-1530d9e80a87/sv-benchmarks/c/seq-pthread/cs_fib-1.i[23602,23615] [2023-11-11 23:51:45,471 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:51:45,492 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:51:45,534 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_2e37bb57-c48f-412c-8b98-1530d9e80a87/sv-benchmarks/c/seq-pthread/cs_fib-1.i[23602,23615] [2023-11-11 23:51:45,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:51:45,684 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:51:45,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:45 WrapperNode [2023-11-11 23:51:45,685 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:51:45,687 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:51:45,687 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:51:45,687 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:51:45,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:45" (1/1) ... [2023-11-11 23:51:45,734 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:45" (1/1) ... [2023-11-11 23:51:45,821 INFO L138 Inliner]: procedures = 144, calls = 352, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 677 [2023-11-11 23:51:45,821 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:51:45,822 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:51:45,822 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:51:45,822 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:51:45,835 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:45" (1/1) ... [2023-11-11 23:51:45,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:45" (1/1) ... [2023-11-11 23:51:45,862 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:45" (1/1) ... [2023-11-11 23:51:45,869 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:45" (1/1) ... [2023-11-11 23:51:45,922 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:45" (1/1) ... [2023-11-11 23:51:45,946 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:45" (1/1) ... [2023-11-11 23:51:45,950 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:45" (1/1) ... [2023-11-11 23:51:45,965 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:45" (1/1) ... [2023-11-11 23:51:45,974 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:51:45,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:51:45,977 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:51:45,977 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:51:45,978 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:45" (1/1) ... [2023-11-11 23:51:45,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:51:46,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e37bb57-c48f-412c-8b98-1530d9e80a87/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:51:46,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e37bb57-c48f-412c-8b98-1530d9e80a87/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:51:46,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e37bb57-c48f-412c-8b98-1530d9e80a87/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:51:46,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-11 23:51:46,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-11 23:51:46,067 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-11 23:51:46,068 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-11 23:51:46,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:51:46,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:51:46,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-11 23:51:46,068 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-11 23:51:46,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-11 23:51:46,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-11 23:51:46,069 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-11 23:51:46,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-11 23:51:46,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:51:46,069 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-11 23:51:46,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-11 23:51:46,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:51:46,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:51:46,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:51:46,368 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:51:46,371 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:51:46,793 INFO L770 $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; [2023-11-11 23:51:46,794 INFO L770 $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)); [2023-11-11 23:51:46,794 INFO L770 $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; [2023-11-11 23:51:46,794 INFO L770 $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)); [2023-11-11 23:51:46,794 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: SUMMARY for call __CS_cs(); srcloc: null [2023-11-11 23:51:46,794 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L734-1: 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; [2023-11-11 23:51:46,795 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L734-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-11 23:51:58,277 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:51:58,453 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:51:58,453 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-11 23:51:58,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:51:58 BoogieIcfgContainer [2023-11-11 23:51:58,457 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:51:58,458 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:51:58,458 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:51:58,469 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:51:58,469 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:51:58" (1/1) ... [2023-11-11 23:51:58,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:51:58,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:58,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 149 states and 223 transitions. [2023-11-11 23:51:58,570 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 223 transitions. [2023-11-11 23:51:58,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-11 23:51:58,598 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:58,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:51:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:52:00,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2023-11-11 23:52:10,538 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 [] [2023-11-11 23:52:10,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:52:10,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 150 states and 224 transitions. [2023-11-11 23:52:10,686 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 224 transitions. [2023-11-11 23:52:10,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-11 23:52:10,690 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:52:10,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:52:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:52:11,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2023-11-11 23:52:12,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:52:12,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 151 states and 226 transitions. [2023-11-11 23:52:12,027 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 226 transitions. [2023-11-11 23:52:12,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-11 23:52:12,038 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:52:12,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:52:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:52:13,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1562 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2023-11-11 23:52:13,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:52:13,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 152 states and 228 transitions. [2023-11-11 23:52:13,448 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 228 transitions. [2023-11-11 23:52:13,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-11 23:52:13,452 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:52:13,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:52:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:52:14,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1563 trivial. 0 not checked. [2023-11-11 23:52:25,227 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 [] [2023-11-11 23:52:25,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:52:25,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 156 states and 236 transitions. [2023-11-11 23:52:25,338 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 236 transitions. [2023-11-11 23:52:25,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-11-11 23:52:25,355 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:52:25,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:52:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:52:26,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1578 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2023-11-11 23:52:26,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:52:26,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 157 states and 236 transitions. [2023-11-11 23:52:26,912 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 236 transitions. [2023-11-11 23:52:26,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-11 23:52:26,917 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:52:26,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:52:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:52:28,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-11 23:52:39,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-11 23:52:39,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:52:39,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 161 states and 243 transitions. [2023-11-11 23:52:39,327 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 243 transitions. [2023-11-11 23:52:39,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-11-11 23:52:39,330 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:52:39,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:52:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:52:40,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1611 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 1571 trivial. 0 not checked. [2023-11-11 23:52:40,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:52:40,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 162 states and 243 transitions. [2023-11-11 23:52:40,755 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 243 transitions. [2023-11-11 23:52:40,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-11-11 23:52:40,759 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:52:40,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:52:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:52:42,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1621 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 1575 trivial. 0 not checked.