./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_11a-equ_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_fef56869-cebb-4d25-8ae8-d5205bc0f782/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef56869-cebb-4d25-8ae8-d5205bc0f782/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef56869-cebb-4d25-8ae8-d5205bc0f782/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef56869-cebb-4d25-8ae8-d5205bc0f782/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_11a-equ_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef56869-cebb-4d25-8ae8-d5205bc0f782/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef56869-cebb-4d25-8ae8-d5205bc0f782/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ae344c6ba282c956275e824e33ce3fb7903cfcf4f1d8d86b2dd8809a46e14d8 --- 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-8393723 [2022-11-18 20:58:15,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:58:15,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:58:15,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:58:15,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:58:15,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:58:15,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:58:15,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:58:15,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:58:15,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:58:15,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:58:15,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:58:15,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:58:15,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:58:15,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:58:15,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:58:15,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:58:15,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:58:15,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:58:15,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:58:15,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:58:15,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:58:15,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:58:15,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:58:15,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:58:15,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:58:15,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:58:15,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:58:15,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:58:15,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:58:15,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:58:15,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:58:15,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:58:15,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:58:15,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:58:15,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:58:15,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:58:15,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:58:15,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:58:15,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:58:15,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:58:15,844 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef56869-cebb-4d25-8ae8-d5205bc0f782/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:58:15,889 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:58:15,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:58:15,890 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:58:15,890 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:58:15,891 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:58:15,892 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:58:15,892 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:58:15,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:58:15,893 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:58:15,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:58:15,894 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:58:15,895 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:58:15,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:58:15,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:58:15,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:58:15,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:58:15,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:58:15,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:58:15,896 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:58:15,896 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:58:15,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:58:15,897 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:58:15,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:58:15,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:58:15,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:58:15,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:58:15,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:58:15,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:58:15,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:58:15,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:58:15,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:58:15,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:58:15,899 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:58:15,900 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:58:15,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:58:15,900 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_fef56869-cebb-4d25-8ae8-d5205bc0f782/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef56869-cebb-4d25-8ae8-d5205bc0f782/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ae344c6ba282c956275e824e33ce3fb7903cfcf4f1d8d86b2dd8809a46e14d8 [2022-11-18 20:58:16,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:58:16,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:58:16,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:58:16,305 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:58:16,306 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:58:16,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef56869-cebb-4d25-8ae8-d5205bc0f782/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/06-symbeq_11a-equ_nr.i [2022-11-18 20:58:16,384 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef56869-cebb-4d25-8ae8-d5205bc0f782/bin/uautomizer-TMbwUNV5ro/data/cfad141d7/21494dbaf82642f2b864fc7207207ec0/FLAG11bd3e30f [2022-11-18 20:58:17,152 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:58:17,153 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef56869-cebb-4d25-8ae8-d5205bc0f782/sv-benchmarks/c/goblint-regression/06-symbeq_11a-equ_nr.i [2022-11-18 20:58:17,178 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef56869-cebb-4d25-8ae8-d5205bc0f782/bin/uautomizer-TMbwUNV5ro/data/cfad141d7/21494dbaf82642f2b864fc7207207ec0/FLAG11bd3e30f [2022-11-18 20:58:17,390 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef56869-cebb-4d25-8ae8-d5205bc0f782/bin/uautomizer-TMbwUNV5ro/data/cfad141d7/21494dbaf82642f2b864fc7207207ec0 [2022-11-18 20:58:17,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:58:17,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:58:17,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:58:17,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:58:17,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:58:17,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:58:17" (1/1) ... [2022-11-18 20:58:17,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@502c77f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:17, skipping insertion in model container [2022-11-18 20:58:17,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:58:17" (1/1) ... [2022-11-18 20:58:17,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:58:17,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:58:18,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:58:18,114 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:58:18,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:58:18,265 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:58:18,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:18 WrapperNode [2022-11-18 20:58:18,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:58:18,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:58:18,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:58:18,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:58:18,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:18" (1/1) ... [2022-11-18 20:58:18,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:18" (1/1) ... [2022-11-18 20:58:18,351 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65 [2022-11-18 20:58:18,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:58:18,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:58:18,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:58:18,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:58:18,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:18" (1/1) ... [2022-11-18 20:58:18,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:18" (1/1) ... [2022-11-18 20:58:18,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:18" (1/1) ... [2022-11-18 20:58:18,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:18" (1/1) ... [2022-11-18 20:58:18,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:18" (1/1) ... [2022-11-18 20:58:18,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:18" (1/1) ... [2022-11-18 20:58:18,395 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:18" (1/1) ... [2022-11-18 20:58:18,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:18" (1/1) ... [2022-11-18 20:58:18,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:58:18,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:58:18,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:58:18,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:58:18,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:18" (1/1) ... [2022-11-18 20:58:18,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:58:18,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef56869-cebb-4d25-8ae8-d5205bc0f782/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:18,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef56869-cebb-4d25-8ae8-d5205bc0f782/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:18,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef56869-cebb-4d25-8ae8-d5205bc0f782/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:58:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:58:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:58:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:58:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:58:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:58:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:58:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:58:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:58:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:58:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:58:18,511 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:58:18,748 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:58:18,750 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:58:19,051 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:58:19,060 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:58:19,060 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:58:19,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:58:19 BoogieIcfgContainer [2022-11-18 20:58:19,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:58:19,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:58:19,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:58:19,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:58:19,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:58:17" (1/3) ... [2022-11-18 20:58:19,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a181f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:58:19, skipping insertion in model container [2022-11-18 20:58:19,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:18" (2/3) ... [2022-11-18 20:58:19,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a181f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:58:19, skipping insertion in model container [2022-11-18 20:58:19,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:58:19" (3/3) ... [2022-11-18 20:58:19,093 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11a-equ_nr.i [2022-11-18 20:58:19,103 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:58:19,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:58:19,116 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 20:58:19,116 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:58:19,228 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:58:19,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 81 transitions, 167 flow [2022-11-18 20:58:19,345 INFO L130 PetriNetUnfolder]: 1/80 cut-off events. [2022-11-18 20:58:19,347 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:58:19,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 1/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2022-11-18 20:58:19,352 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 81 transitions, 167 flow [2022-11-18 20:58:19,356 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 49 transitions, 98 flow [2022-11-18 20:58:19,370 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:58:19,378 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5961b8f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:58:19,378 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-18 20:58:19,391 INFO L130 PetriNetUnfolder]: 0/43 cut-off events. [2022-11-18 20:58:19,391 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:58:19,392 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:19,393 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:19,393 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-11-18 20:58:19,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:19,399 INFO L85 PathProgramCache]: Analyzing trace with hash 129438196, now seen corresponding path program 1 times [2022-11-18 20:58:19,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:19,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550984538] [2022-11-18 20:58:19,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:19,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:19,606 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:58:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:19,719 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:58:19,721 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:58:19,723 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2022-11-18 20:58:19,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2022-11-18 20:58:19,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2022-11-18 20:58:19,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2022-11-18 20:58:19,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-11-18 20:58:19,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:58:19,727 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-18 20:58:19,735 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:58:19,735 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:58:19,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:58:19 BasicIcfg [2022-11-18 20:58:19,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:58:19,782 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:58:19,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:58:19,782 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:58:19,782 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:58:19" (3/4) ... [2022-11-18 20:58:19,785 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-18 20:58:19,833 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef56869-cebb-4d25-8ae8-d5205bc0f782/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:58:19,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:58:19,835 INFO L158 Benchmark]: Toolchain (without parser) took 2440.29ms. Allocated memory is still 109.1MB. Free memory was 74.6MB in the beginning and 58.1MB in the end (delta: 16.4MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2022-11-18 20:58:19,835 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 86.0MB. Free memory was 44.2MB in the beginning and 44.1MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:58:19,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 868.69ms. Allocated memory is still 109.1MB. Free memory was 74.3MB in the beginning and 65.3MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:58:19,837 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.34ms. Allocated memory is still 109.1MB. Free memory was 65.3MB in the beginning and 62.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:58:19,837 INFO L158 Benchmark]: Boogie Preprocessor took 45.56ms. Allocated memory is still 109.1MB. Free memory was 62.8MB in the beginning and 61.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:58:19,838 INFO L158 Benchmark]: RCFGBuilder took 663.09ms. Allocated memory is still 109.1MB. Free memory was 61.6MB in the beginning and 48.1MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:58:19,839 INFO L158 Benchmark]: TraceAbstraction took 716.00ms. Allocated memory is still 109.1MB. Free memory was 47.6MB in the beginning and 61.4MB in the end (delta: -13.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:58:19,840 INFO L158 Benchmark]: Witness Printer took 51.92ms. Allocated memory is still 109.1MB. Free memory was 61.4MB in the beginning and 58.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:58:19,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62ms. Allocated memory is still 86.0MB. Free memory was 44.2MB in the beginning and 44.1MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 868.69ms. Allocated memory is still 109.1MB. Free memory was 74.3MB in the beginning and 65.3MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.34ms. Allocated memory is still 109.1MB. Free memory was 65.3MB in the beginning and 62.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.56ms. Allocated memory is still 109.1MB. Free memory was 62.8MB in the beginning and 61.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 663.09ms. Allocated memory is still 109.1MB. Free memory was 61.6MB in the beginning and 48.1MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 716.00ms. Allocated memory is still 109.1MB. Free memory was 47.6MB in the beginning and 61.4MB in the end (delta: -13.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 51.92ms. Allocated memory is still 109.1MB. Free memory was 61.4MB in the beginning and 58.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1010]: integer overflow possible integer overflow possible We found a FailurePath: [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; VAL [A={1:0}, B={2:0}] [L1003] int x = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=2147483647, A={1:0}, B={2:0}, x=2147483647] [L1004] pthread_t id; VAL [A={1:0}, B={2:0}, id={3:0}, x=2147483647] [L1005] struct s *s; VAL [A={1:0}, B={2:0}, id={3:0}, x=2147483647] [L1006] int *d; VAL [A={1:0}, B={2:0}, id={3:0}, x=2147483647] [L1007] pthread_mutex_t *m; VAL [A={1:0}, B={2:0}, id={3:0}, x=2147483647] [L1008] COND TRUE \read(x) VAL [A={1:0}, B={2:0}, id={3:0}, x=2147483647] [L1009] s = &A VAL [A={1:0}, B={2:0}, id={3:0}, s={1:0}, x=2147483647] [L1010] x++ VAL [A={1:0}, B={2:0}, id={3:0}, s={1:0}, x=2147483647, x++=2147483647] - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1010]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1017]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 90 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-18 20:58:19,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef56869-cebb-4d25-8ae8-d5205bc0f782/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)