./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_stateful-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca18516-585c-499d-9eca-c92fcfca39a6/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca18516-585c-499d-9eca-c92fcfca39a6/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca18516-585c-499d-9eca-c92fcfca39a6/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca18516-585c-499d-9eca-c92fcfca39a6/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_stateful-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca18516-585c-499d-9eca-c92fcfca39a6/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca18516-585c-499d-9eca-c92fcfca39a6/bin/ukojak-92XMlrwhuB --witnessprinter.witness.filename witness.graphml --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 8ecae2ca1de1e5b446d807037ed0cb2d4fc04c355acb35a6870f18f7e175f10e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 17:05:53,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:05:53,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:05:53,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:05:53,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:05:53,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:05:53,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:05:53,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:05:53,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:05:53,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:05:53,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:05:53,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:05:53,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:05:53,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:05:53,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:05:53,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:05:53,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:05:53,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:05:53,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:05:53,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:05:53,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:05:53,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:05:53,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:05:53,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:05:53,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:05:53,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:05:53,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:05:53,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:05:53,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:05:53,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:05:53,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:05:53,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:05:53,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:05:53,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:05:53,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:05:53,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:05:53,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:05:53,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:05:53,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:05:53,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:05:53,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:05:53,254 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca18516-585c-499d-9eca-c92fcfca39a6/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 17:05:53,292 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:05:53,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:05:53,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:05:53,294 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 17:05:53,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:05:53,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:05:53,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:05:53,296 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:05:53,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:05:53,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:05:53,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:05:53,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:05:53,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:05:53,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:05:53,299 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:05:53,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:05:53,300 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:05:53,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:05:53,301 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 17:05:53,301 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 17:05:53,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:05:53,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:05:53,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:05:53,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:05:53,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:05:53,303 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 17:05:53,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:05:53,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:05:53,305 INFO L138 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_4ca18516-585c-499d-9eca-c92fcfca39a6/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca18516-585c-499d-9eca-c92fcfca39a6/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ecae2ca1de1e5b446d807037ed0cb2d4fc04c355acb35a6870f18f7e175f10e [2022-10-17 17:05:53,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:05:53,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:05:53,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:05:53,613 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:05:53,615 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:05:53,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca18516-585c-499d-9eca-c92fcfca39a6/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/seq-pthread/cs_stateful-1.i [2022-10-17 17:05:53,684 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca18516-585c-499d-9eca-c92fcfca39a6/bin/ukojak-92XMlrwhuB/data/84423aadf/37f7e8a028c5472989a0b810e58d29d2/FLAGf0020fc5d [2022-10-17 17:05:54,259 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:05:54,260 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca18516-585c-499d-9eca-c92fcfca39a6/sv-benchmarks/c/seq-pthread/cs_stateful-1.i [2022-10-17 17:05:54,276 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca18516-585c-499d-9eca-c92fcfca39a6/bin/ukojak-92XMlrwhuB/data/84423aadf/37f7e8a028c5472989a0b810e58d29d2/FLAGf0020fc5d [2022-10-17 17:05:54,543 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca18516-585c-499d-9eca-c92fcfca39a6/bin/ukojak-92XMlrwhuB/data/84423aadf/37f7e8a028c5472989a0b810e58d29d2 [2022-10-17 17:05:54,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:05:54,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:05:54,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:05:54,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:05:54,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:05:54,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:05:54" (1/1) ... [2022-10-17 17:05:54,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78428a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:54, skipping insertion in model container [2022-10-17 17:05:54,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:05:54" (1/1) ... [2022-10-17 17:05:54,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:05:54,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:05:55,106 WARN L230 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_4ca18516-585c-499d-9eca-c92fcfca39a6/sv-benchmarks/c/seq-pthread/cs_stateful-1.i[23400,23413] [2022-10-17 17:05:55,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:05:55,236 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:05:55,286 WARN L230 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_4ca18516-585c-499d-9eca-c92fcfca39a6/sv-benchmarks/c/seq-pthread/cs_stateful-1.i[23400,23413] [2022-10-17 17:05:55,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:05:55,423 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:05:55,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:55 WrapperNode [2022-10-17 17:05:55,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:05:55,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:05:55,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:05:55,427 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:05:55,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:55" (1/1) ... [2022-10-17 17:05:55,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:55" (1/1) ... [2022-10-17 17:05:55,539 INFO L138 Inliner]: procedures = 144, calls = 231, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 563 [2022-10-17 17:05:55,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:05:55,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:05:55,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:05:55,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:05:55,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:55" (1/1) ... [2022-10-17 17:05:55,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:55" (1/1) ... [2022-10-17 17:05:55,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:55" (1/1) ... [2022-10-17 17:05:55,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:55" (1/1) ... [2022-10-17 17:05:55,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:55" (1/1) ... [2022-10-17 17:05:55,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:55" (1/1) ... [2022-10-17 17:05:55,628 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:55" (1/1) ... [2022-10-17 17:05:55,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:55" (1/1) ... [2022-10-17 17:05:55,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:05:55,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:05:55,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:05:55,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:05:55,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:05:55" (1/1) ... [2022-10-17 17:05:55,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:05:55,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca18516-585c-499d-9eca-c92fcfca39a6/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 17:05:55,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca18516-585c-499d-9eca-c92fcfca39a6/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 17:05:55,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca18516-585c-499d-9eca-c92fcfca39a6/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 17:05:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:05:55,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:05:55,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:05:55,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:05:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:05:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_init [2022-10-17 17:05:55,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_init [2022-10-17 17:05:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2022-10-17 17:05:55,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2022-10-17 17:05:55,758 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2022-10-17 17:05:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2022-10-17 17:05:55,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:05:55,758 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2022-10-17 17:05:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2022-10-17 17:05:55,758 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-10-17 17:05:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-10-17 17:05:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:05:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 17:05:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2022-10-17 17:05:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2022-10-17 17:05:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:05:55,760 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2022-10-17 17:05:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2022-10-17 17:05:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:05:55,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:05:55,979 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:05:55,981 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:05:56,442 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L746: SUMMARY for call __CS_cs(); srcloc: null [2022-10-17 17:05:56,442 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-1: assume 0 != ~__CS_ret~0 % 256;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; [2022-10-17 17:05:56,442 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-1: assume !(0 != ~__CS_ret~0 % 256); [2022-10-17 17:05:56,443 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume !(0 != ~__CS_ret~0 % 256); [2022-10-17 17:05:56,443 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume 0 != ~__CS_ret~0 % 256;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; [2022-10-17 17:05:56,443 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume !(0 != ~__CS_ret~0 % 256); [2022-10-17 17:05:56,443 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume 0 != ~__CS_ret~0 % 256;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; [2022-10-17 17:06:06,833 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:06:07,103 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:06:07,103 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 17:06:07,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:06:07 BoogieIcfgContainer [2022-10-17 17:06:07,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:06:07,108 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 17:06:07,108 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 17:06:07,119 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 17:06:07,120 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:06:07" (1/1) ... [2022-10-17 17:06:07,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:06:07,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:07,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 119 states and 183 transitions. [2022-10-17 17:06:07,250 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 183 transitions. [2022-10-17 17:06:07,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 17:06:07,258 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:07,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:08,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:06:12,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 17:06:12,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:12,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 120 states and 184 transitions. [2022-10-17 17:06:12,468 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 184 transitions. [2022-10-17 17:06:12,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 17:06:12,470 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:12,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:12,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:06:13,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:13,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 121 states and 186 transitions. [2022-10-17 17:06:13,005 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 186 transitions. [2022-10-17 17:06:13,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 17:06:13,007 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:13,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:13,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:06:13,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:13,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 122 states and 188 transitions. [2022-10-17 17:06:13,717 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 188 transitions. [2022-10-17 17:06:13,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 17:06:13,718 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:13,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:13,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:14,364 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 17:06:24,741 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 [] [2022-10-17 17:06:24,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:24,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 126 states and 195 transitions. [2022-10-17 17:06:24,814 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 195 transitions. [2022-10-17 17:06:24,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 17:06:24,821 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:24,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:25,743 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 17:06:25,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 127 states and 195 transitions. [2022-10-17 17:06:25,896 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 195 transitions. [2022-10-17 17:06:25,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 17:06:25,897 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:25,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:26,630 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-17 17:06:26,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:26,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 128 states and 195 transitions. [2022-10-17 17:06:26,779 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 195 transitions. [2022-10-17 17:06:26,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 17:06:26,781 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:26,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:27,935 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-17 17:06:29,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:29,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 135 states and 209 transitions. [2022-10-17 17:06:29,888 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 209 transitions. [2022-10-17 17:06:29,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 17:06:29,890 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:29,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:30,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:30,898 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-17 17:06:30,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:30,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 135 states and 209 transitions. [2022-10-17 17:06:30,914 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 209 transitions. [2022-10-17 17:06:30,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 17:06:30,917 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:30,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:31,833 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-17 17:06:31,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:31,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 135 states and 209 transitions. [2022-10-17 17:06:31,843 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 209 transitions. [2022-10-17 17:06:31,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 17:06:31,845 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:31,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:32,819 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-17 17:06:32,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:32,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 135 states and 209 transitions. [2022-10-17 17:06:32,830 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 209 transitions. [2022-10-17 17:06:32,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 17:06:32,831 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:32,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat