./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_67b7f827-532c-461f-850a-17f3991807e1/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b7f827-532c-461f-850a-17f3991807e1/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b7f827-532c-461f-850a-17f3991807e1/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b7f827-532c-461f-850a-17f3991807e1/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr-overflow.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b7f827-532c-461f-850a-17f3991807e1/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b7f827-532c-461f-850a-17f3991807e1/bin/uautomizer-vX5HgA9Q3a --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 0d8b66b98fca524b0a343d5dd747c13b18a33bf448a3a25d7d1a1a10b8f7934d --- 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-b5237d8 [2022-11-21 16:31:27,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:31:27,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:31:27,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:31:27,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:31:27,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:31:27,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:31:27,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:31:27,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:31:27,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:31:27,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:31:27,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:31:27,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:31:27,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:31:27,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:31:27,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:31:27,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:31:27,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:31:27,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:31:27,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:31:27,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:31:27,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:31:27,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:31:27,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:31:27,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:31:27,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:31:27,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:31:27,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:31:27,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:31:27,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:31:27,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:31:27,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:31:27,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:31:27,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:31:27,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:31:27,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:31:27,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:31:27,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:31:27,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:31:27,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:31:27,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:31:27,263 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b7f827-532c-461f-850a-17f3991807e1/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 16:31:27,292 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:31:27,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:31:27,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:31:27,293 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:31:27,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:31:27,294 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:31:27,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:31:27,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:31:27,296 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:31:27,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:31:27,296 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:31:27,296 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:31:27,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:31:27,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:31:27,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:31:27,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:31:27,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:31:27,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:31:27,298 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 16:31:27,298 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:31:27,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:31:27,298 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:31:27,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:31:27,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:31:27,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:31:27,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:31:27,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:31:27,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:31:27,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:31:27,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:31:27,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:31:27,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:31:27,301 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:31:27,301 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:31:27,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:31:27,302 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_67b7f827-532c-461f-850a-17f3991807e1/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b7f827-532c-461f-850a-17f3991807e1/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d8b66b98fca524b0a343d5dd747c13b18a33bf448a3a25d7d1a1a10b8f7934d [2022-11-21 16:31:27,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:31:27,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:31:27,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:31:27,648 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:31:27,648 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:31:27,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b7f827-532c-461f-850a-17f3991807e1/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr-overflow.i [2022-11-21 16:31:31,325 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:31:31,729 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:31:31,730 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b7f827-532c-461f-850a-17f3991807e1/sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr-overflow.i [2022-11-21 16:31:31,761 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b7f827-532c-461f-850a-17f3991807e1/bin/uautomizer-vX5HgA9Q3a/data/c0bf404f5/1468fa5b754e4d48ac565472f6961205/FLAG97ba79069 [2022-11-21 16:31:31,779 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b7f827-532c-461f-850a-17f3991807e1/bin/uautomizer-vX5HgA9Q3a/data/c0bf404f5/1468fa5b754e4d48ac565472f6961205 [2022-11-21 16:31:31,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:31:31,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:31:31,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:31:31,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:31:31,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:31:31,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:31:31" (1/1) ... [2022-11-21 16:31:31,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77093ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:31, skipping insertion in model container [2022-11-21 16:31:31,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:31:31" (1/1) ... [2022-11-21 16:31:31,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:31:31,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:31:32,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:31:32,914 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:31:33,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:31:33,191 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:31:33,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:33 WrapperNode [2022-11-21 16:31:33,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:31:33,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:31:33,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:31:33,194 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:31:33,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:33" (1/1) ... [2022-11-21 16:31:33,265 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:33" (1/1) ... [2022-11-21 16:31:33,313 INFO L138 Inliner]: procedures = 524, calls = 59, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 117 [2022-11-21 16:31:33,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:31:33,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:31:33,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:31:33,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:31:33,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:33" (1/1) ... [2022-11-21 16:31:33,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:33" (1/1) ... [2022-11-21 16:31:33,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:33" (1/1) ... [2022-11-21 16:31:33,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:33" (1/1) ... [2022-11-21 16:31:33,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:33" (1/1) ... [2022-11-21 16:31:33,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:33" (1/1) ... [2022-11-21 16:31:33,392 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:33" (1/1) ... [2022-11-21 16:31:33,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:33" (1/1) ... [2022-11-21 16:31:33,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:31:33,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:31:33,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:31:33,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:31:33,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:33" (1/1) ... [2022-11-21 16:31:33,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:31:33,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b7f827-532c-461f-850a-17f3991807e1/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:31:33,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b7f827-532c-461f-850a-17f3991807e1/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:31:33,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b7f827-532c-461f-850a-17f3991807e1/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:31:33,512 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2022-11-21 16:31:33,513 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2022-11-21 16:31:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-21 16:31:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2022-11-21 16:31:33,513 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2022-11-21 16:31:33,514 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2022-11-21 16:31:33,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:31:33,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:31:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 16:31:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:31:33,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:31:33,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:31:33,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:31:33,518 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-11-21 16:31:33,518 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 16:31:33,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:31:33,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:31:33,521 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:31:33,901 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:31:33,903 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:31:34,362 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:31:34,374 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:31:34,374 INFO L300 CfgBuilder]: Removed 19 assume(true) statements. [2022-11-21 16:31:34,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:31:34 BoogieIcfgContainer [2022-11-21 16:31:34,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:31:34,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:31:34,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:31:34,404 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:31:34,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:31:31" (1/3) ... [2022-11-21 16:31:34,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2958e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:31:34, skipping insertion in model container [2022-11-21 16:31:34,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:33" (2/3) ... [2022-11-21 16:31:34,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2958e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:31:34, skipping insertion in model container [2022-11-21 16:31:34,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:31:34" (3/3) ... [2022-11-21 16:31:34,408 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr-overflow.i [2022-11-21 16:31:34,425 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:31:34,438 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:31:34,438 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-21 16:31:34,439 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:31:34,604 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-21 16:31:34,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 230 transitions, 476 flow [2022-11-21 16:31:34,761 INFO L130 PetriNetUnfolder]: 31/228 cut-off events. [2022-11-21 16:31:34,761 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 16:31:34,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 228 events. 31/228 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 463 event pairs, 0 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 138. Up to 5 conditions per place. [2022-11-21 16:31:34,771 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 230 transitions, 476 flow [2022-11-21 16:31:34,779 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 187 places, 208 transitions, 425 flow [2022-11-21 16:31:34,791 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:31:34,799 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;@3e654f04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:31:34,800 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-21 16:31:34,813 INFO L130 PetriNetUnfolder]: 0/49 cut-off events. [2022-11-21 16:31:34,814 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:31:34,814 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:31:34,815 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:34,816 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-11-21 16:31:34,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:34,822 INFO L85 PathProgramCache]: Analyzing trace with hash -396883646, now seen corresponding path program 1 times [2022-11-21 16:31:34,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:34,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798625618] [2022-11-21 16:31:34,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:34,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:31:35,126 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:31:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:31:35,207 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:31:35,209 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:31:35,210 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-21 16:31:35,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-21 16:31:35,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-21 16:31:35,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-21 16:31:35,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-21 16:31:35,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-21 16:31:35,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-21 16:31:35,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-21 16:31:35,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2022-11-21 16:31:35,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2022-11-21 16:31:35,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-21 16:31:35,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-21 16:31:35,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-21 16:31:35,217 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-21 16:31:35,217 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-21 16:31:35,217 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-21 16:31:35,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-21 16:31:35,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-21 16:31:35,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-21 16:31:35,219 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-21 16:31:35,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:31:35,220 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-21 16:31:35,230 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:31:35,230 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:31:35,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:31:35 BasicIcfg [2022-11-21 16:31:35,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:31:35,273 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:31:35,274 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:31:35,274 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:31:35,274 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:31:34" (3/4) ... [2022-11-21 16:31:35,277 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-21 16:31:35,375 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b7f827-532c-461f-850a-17f3991807e1/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:31:35,376 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:31:35,379 INFO L158 Benchmark]: Toolchain (without parser) took 3595.06ms. Allocated memory is still 146.8MB. Free memory was 103.8MB in the beginning and 51.8MB in the end (delta: 52.0MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2022-11-21 16:31:35,380 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 102.8MB. Free memory was 51.8MB in the beginning and 51.7MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:31:35,381 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1406.99ms. Allocated memory is still 146.8MB. Free memory was 103.8MB in the beginning and 77.1MB in the end (delta: 26.8MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2022-11-21 16:31:35,382 INFO L158 Benchmark]: Boogie Procedure Inliner took 120.02ms. Allocated memory is still 146.8MB. Free memory was 77.1MB in the beginning and 74.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:31:35,382 INFO L158 Benchmark]: Boogie Preprocessor took 87.21ms. Allocated memory is still 146.8MB. Free memory was 74.2MB in the beginning and 70.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:31:35,383 INFO L158 Benchmark]: RCFGBuilder took 994.62ms. Allocated memory is still 146.8MB. Free memory was 70.8MB in the beginning and 104.3MB in the end (delta: -33.5MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2022-11-21 16:31:35,383 INFO L158 Benchmark]: TraceAbstraction took 872.54ms. Allocated memory is still 146.8MB. Free memory was 104.3MB in the beginning and 56.0MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-11-21 16:31:35,384 INFO L158 Benchmark]: Witness Printer took 104.80ms. Allocated memory is still 146.8MB. Free memory was 56.0MB in the beginning and 51.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:31:35,386 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 102.8MB. Free memory was 51.8MB in the beginning and 51.7MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1406.99ms. Allocated memory is still 146.8MB. Free memory was 103.8MB in the beginning and 77.1MB in the end (delta: 26.8MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 120.02ms. Allocated memory is still 146.8MB. Free memory was 77.1MB in the beginning and 74.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.21ms. Allocated memory is still 146.8MB. Free memory was 74.2MB in the beginning and 70.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 994.62ms. Allocated memory is still 146.8MB. Free memory was 70.8MB in the beginning and 104.3MB in the end (delta: -33.5MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. * TraceAbstraction took 872.54ms. Allocated memory is still 146.8MB. Free memory was 104.3MB in the beginning and 56.0MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Witness Printer took 104.80ms. Allocated memory is still 146.8MB. Free memory was 56.0MB in the beginning and 51.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1839]: integer overflow possible integer overflow possible We found a FailurePath: [L1797] pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex={25:0}] [L1798] long counter; VAL [counter=0, mutex={25:0}] [L1799] time_t end_time; VAL [counter=0, end_time=0, mutex={25:0}] [L1836] int status; VAL [\old(argc)=2147483590, argc=2147483590, argv={2147483591:2147483589}, argv={2147483591:2147483589}, counter=0, end_time=0, mutex={25:0}] [L1837] pthread_t counter_thread_id; VAL [\old(argc)=2147483590, argc=2147483590, argv={2147483591:2147483589}, argv={2147483591:2147483589}, counter=0, counter_thread_id={27:0}, end_time=0, mutex={25:0}] [L1838] pthread_t monitor_thread_id; VAL [\old(argc)=2147483590, argc=2147483590, argv={2147483591:2147483589}, argv={2147483591:2147483589}, counter=0, counter_thread_id={27:0}, end_time=0, monitor_thread_id={26:0}, mutex={25:0}] [L1839] time (((void *)0)) + 60 VAL [\old(argc)=2147483590, argc=2147483590, argv={2147483591:2147483589}, argv={2147483591:2147483589}, counter=0, counter_thread_id={27:0}, end_time=0, monitor_thread_id={26:0}, mutex={25:0}, time (((void *)0))=2147483588] - UnprovableResult [Line: 1830]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1807]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1807]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1839]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1840]: 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. - UnprovableResult [Line: 1843]: 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 5 procedures, 292 locations, 20 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: 0.6s, 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=425occurred 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, 50 NumberOfCodeBlocks, 50 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! [2022-11-21 16:31:35,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b7f827-532c-461f-850a-17f3991807e1/bin/uautomizer-vX5HgA9Q3a/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)