./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/bin/uautomizer-uyxdKDjOR8 --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 8627cbce136f39d723fc0eaadf7d8371bf261a07ec5ac59da2e79df34069083d --- 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-2329fc7 [2022-12-13 20:10:48,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:10:48,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:10:48,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:10:48,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:10:48,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:10:48,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:10:48,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:10:48,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:10:48,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:10:48,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:10:48,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:10:48,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:10:48,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:10:48,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:10:48,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:10:48,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:10:48,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:10:48,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:10:48,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:10:48,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:10:48,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:10:48,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:10:48,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:10:48,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:10:48,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:10:48,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:10:48,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:10:48,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:10:48,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:10:48,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:10:48,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:10:48,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:10:48,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:10:48,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:10:48,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:10:48,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:10:48,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:10:48,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:10:48,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:10:48,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:10:48,297 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 20:10:48,311 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:10:48,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:10:48,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:10:48,311 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:10:48,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:10:48,312 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:10:48,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:10:48,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:10:48,313 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:10:48,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:10:48,313 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:10:48,313 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:10:48,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:10:48,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:10:48,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:10:48,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:10:48,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:10:48,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:10:48,313 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:10:48,314 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:10:48,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:10:48,314 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:10:48,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:10:48,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:10:48,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:10:48,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:10:48,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:10:48,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:10:48,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:10:48,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:10:48,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:10:48,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:10:48,315 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:10:48,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:10:48,315 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:10:48,315 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:10:48,315 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:10:48,315 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8627cbce136f39d723fc0eaadf7d8371bf261a07ec5ac59da2e79df34069083d [2022-12-13 20:10:48,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:10:48,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:10:48,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:10:48,516 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:10:48,517 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:10:48,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2022-12-13 20:10:51,096 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:10:51,288 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:10:51,289 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2022-12-13 20:10:51,302 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/bin/uautomizer-uyxdKDjOR8/data/909ef948f/2f5c8a4408404c09a6abe6d42ba4152e/FLAG09316e75a [2022-12-13 20:10:51,660 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/bin/uautomizer-uyxdKDjOR8/data/909ef948f/2f5c8a4408404c09a6abe6d42ba4152e [2022-12-13 20:10:51,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:10:51,666 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:10:51,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:10:51,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:10:51,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:10:51,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:10:51" (1/1) ... [2022-12-13 20:10:51,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30d2197a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:10:51, skipping insertion in model container [2022-12-13 20:10:51,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:10:51" (1/1) ... [2022-12-13 20:10:51,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:10:51,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:10:51,810 WARN L237 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_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i[1105,1118] [2022-12-13 20:10:51,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:10:51,910 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:10:51,918 WARN L237 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_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i[1105,1118] [2022-12-13 20:10:51,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:10:51,957 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:10:51,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:10:51 WrapperNode [2022-12-13 20:10:51,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:10:51,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:10:51,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:10:51,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:10:51,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:10:51" (1/1) ... [2022-12-13 20:10:51,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:10:51" (1/1) ... [2022-12-13 20:10:51,999 INFO L138 Inliner]: procedures = 162, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2022-12-13 20:10:52,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:10:52,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:10:52,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:10:52,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:10:52,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:10:51" (1/1) ... [2022-12-13 20:10:52,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:10:51" (1/1) ... [2022-12-13 20:10:52,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:10:51" (1/1) ... [2022-12-13 20:10:52,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:10:51" (1/1) ... [2022-12-13 20:10:52,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:10:51" (1/1) ... [2022-12-13 20:10:52,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:10:51" (1/1) ... [2022-12-13 20:10:52,037 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:10:51" (1/1) ... [2022-12-13 20:10:52,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:10:51" (1/1) ... [2022-12-13 20:10:52,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:10:52,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:10:52,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:10:52,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:10:52,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:10:51" (1/1) ... [2022-12-13 20:10:52,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:10:52,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:10:52,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:10:52,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:10:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2022-12-13 20:10:52,108 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2022-12-13 20:10:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:10:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 20:10:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:10:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:10:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:10:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:10:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:10:52,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:10:52,110 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 20:10:52,208 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:10:52,210 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:10:52,332 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:10:52,339 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:10:52,339 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 20:10:52,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:10:52 BoogieIcfgContainer [2022-12-13 20:10:52,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:10:52,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:10:52,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:10:52,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:10:52,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:10:51" (1/3) ... [2022-12-13 20:10:52,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aba4072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:10:52, skipping insertion in model container [2022-12-13 20:10:52,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:10:51" (2/3) ... [2022-12-13 20:10:52,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aba4072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:10:52, skipping insertion in model container [2022-12-13 20:10:52,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:10:52" (3/3) ... [2022-12-13 20:10:52,349 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_52-refine-protected-loop2-small_true.i [2022-12-13 20:10:52,358 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 20:10:52,368 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:10:52,368 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:10:52,368 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:10:52,415 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 20:10:52,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 75 transitions, 155 flow [2022-12-13 20:10:52,482 INFO L130 PetriNetUnfolder]: 4/74 cut-off events. [2022-12-13 20:10:52,482 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:10:52,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 4/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2022-12-13 20:10:52,487 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 75 transitions, 155 flow [2022-12-13 20:10:52,491 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 70 transitions, 143 flow [2022-12-13 20:10:52,494 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:10:52,505 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 70 transitions, 143 flow [2022-12-13 20:10:52,507 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 70 transitions, 143 flow [2022-12-13 20:10:52,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 70 transitions, 143 flow [2022-12-13 20:10:52,528 INFO L130 PetriNetUnfolder]: 3/70 cut-off events. [2022-12-13 20:10:52,529 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:10:52,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 70 events. 3/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2022-12-13 20:10:52,530 INFO L119 LiptonReduction]: Number of co-enabled transitions 432 [2022-12-13 20:10:55,187 INFO L134 LiptonReduction]: Checked pairs total: 321 [2022-12-13 20:10:55,187 INFO L136 LiptonReduction]: Total number of compositions: 77 [2022-12-13 20:10:55,198 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:10:55,203 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;@10812558, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:10:55,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-13 20:10:55,205 INFO L130 PetriNetUnfolder]: 1/5 cut-off events. [2022-12-13 20:10:55,205 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:10:55,205 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:10:55,206 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 20:10:55,206 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-12-13 20:10:55,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:10:55,210 INFO L85 PathProgramCache]: Analyzing trace with hash 9376437, now seen corresponding path program 1 times [2022-12-13 20:10:55,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:10:55,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639013864] [2022-12-13 20:10:55,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:10:55,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:10:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:10:55,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:10:55,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:10:55,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639013864] [2022-12-13 20:10:55,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639013864] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:10:55,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:10:55,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:10:55,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128858790] [2022-12-13 20:10:55,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:10:55,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 20:10:55,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:10:55,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 20:10:55,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 20:10:55,391 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 152 [2022-12-13 20:10:55,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 10 places, 7 transitions, 17 flow. Second operand has 2 states, 2 states have (on average 72.0) internal successors, (144), 2 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:10:55,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:10:55,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 152 [2022-12-13 20:10:55,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:10:55,412 INFO L130 PetriNetUnfolder]: 4/11 cut-off events. [2022-12-13 20:10:55,412 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:10:55,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 11 events. 4/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 2 based on Foata normal form. 0/9 useless extension candidates. Maximal degree in co-relation 18. Up to 12 conditions per place. [2022-12-13 20:10:55,414 INFO L137 encePairwiseOnDemand]: 151/152 looper letters, 6 selfloop transitions, 0 changer transitions 0/6 dead transitions. [2022-12-13 20:10:55,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 27 flow [2022-12-13 20:10:55,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 20:10:55,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 20:10:55,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 147 transitions. [2022-12-13 20:10:55,427 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48355263157894735 [2022-12-13 20:10:55,427 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 147 transitions. [2022-12-13 20:10:55,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 147 transitions. [2022-12-13 20:10:55,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:10:55,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 147 transitions. [2022-12-13 20:10:55,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 73.5) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:10:55,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:10:55,438 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:10:55,440 INFO L175 Difference]: Start difference. First operand has 10 places, 7 transitions, 17 flow. Second operand 2 states and 147 transitions. [2022-12-13 20:10:55,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 27 flow [2022-12-13 20:10:55,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 6 transitions, 26 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:10:55,444 INFO L231 Difference]: Finished difference. Result has 9 places, 6 transitions, 14 flow [2022-12-13 20:10:55,445 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=14, PETRI_PLACES=9, PETRI_TRANSITIONS=6} [2022-12-13 20:10:55,448 INFO L288 CegarLoopForPetriNet]: 10 programPoint places, -1 predicate places. [2022-12-13 20:10:55,448 INFO L495 AbstractCegarLoop]: Abstraction has has 9 places, 6 transitions, 14 flow [2022-12-13 20:10:55,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.0) internal successors, (144), 2 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:10:55,449 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:10:55,449 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 20:10:55,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:10:55,449 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-12-13 20:10:55,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:10:55,450 INFO L85 PathProgramCache]: Analyzing trace with hash 9376454, now seen corresponding path program 1 times [2022-12-13 20:10:55,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:10:55,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215617802] [2022-12-13 20:10:55,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:10:55,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:10:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:10:55,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:10:55,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:10:55,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215617802] [2022-12-13 20:10:55,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215617802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:10:55,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:10:55,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:10:55,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622098151] [2022-12-13 20:10:55,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:10:55,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:10:55,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:10:55,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:10:55,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:10:55,563 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 152 [2022-12-13 20:10:55,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 9 places, 6 transitions, 14 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:10:55,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:10:55,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 152 [2022-12-13 20:10:55,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:10:55,575 INFO L130 PetriNetUnfolder]: 3/8 cut-off events. [2022-12-13 20:10:55,575 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:10:55,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 8 events. 3/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 18. Up to 5 conditions per place. [2022-12-13 20:10:55,576 INFO L137 encePairwiseOnDemand]: 150/152 looper letters, 0 selfloop transitions, 0 changer transitions 6/6 dead transitions. [2022-12-13 20:10:55,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 26 flow [2022-12-13 20:10:55,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:10:55,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:10:55,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 205 transitions. [2022-12-13 20:10:55,577 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44956140350877194 [2022-12-13 20:10:55,577 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 205 transitions. [2022-12-13 20:10:55,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 205 transitions. [2022-12-13 20:10:55,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:10:55,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 205 transitions. [2022-12-13 20:10:55,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:10:55,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:10:55,580 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:10:55,580 INFO L175 Difference]: Start difference. First operand has 9 places, 6 transitions, 14 flow. Second operand 3 states and 205 transitions. [2022-12-13 20:10:55,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 26 flow [2022-12-13 20:10:55,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 26 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:10:55,581 INFO L231 Difference]: Finished difference. Result has 10 places, 0 transitions, 0 flow [2022-12-13 20:10:55,581 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=12, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=10, PETRI_TRANSITIONS=0} [2022-12-13 20:10:55,581 INFO L288 CegarLoopForPetriNet]: 10 programPoint places, 0 predicate places. [2022-12-13 20:10:55,581 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 0 transitions, 0 flow [2022-12-13 20:10:55,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:10:55,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2022-12-13 20:10:55,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2022-12-13 20:10:55,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2022-12-13 20:10:55,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2022-12-13 20:10:55,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 5 remaining) [2022-12-13 20:10:55,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:10:55,584 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 20:10:55,589 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 20:10:55,589 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:10:55,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:10:55 BasicIcfg [2022-12-13 20:10:55,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:10:55,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:10:55,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:10:55,594 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:10:55,594 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:10:52" (3/4) ... [2022-12-13 20:10:55,596 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 20:10:55,601 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure worker [2022-12-13 20:10:55,604 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-13 20:10:55,604 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 20:10:55,604 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 20:10:55,604 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 20:10:55,631 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 20:10:55,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:10:55,632 INFO L158 Benchmark]: Toolchain (without parser) took 3965.76ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 83.8MB in the beginning and 52.0MB in the end (delta: 31.7MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. [2022-12-13 20:10:55,632 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 119.5MB. Free memory was 92.4MB in the beginning and 92.4MB in the end (delta: 90.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:10:55,633 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.70ms. Allocated memory is still 119.5MB. Free memory was 83.8MB in the beginning and 64.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 20:10:55,633 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.24ms. Allocated memory is still 119.5MB. Free memory was 64.9MB in the beginning and 92.6MB in the end (delta: -27.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-13 20:10:55,634 INFO L158 Benchmark]: Boogie Preprocessor took 39.72ms. Allocated memory is still 119.5MB. Free memory was 92.6MB in the beginning and 91.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:10:55,634 INFO L158 Benchmark]: RCFGBuilder took 300.47ms. Allocated memory is still 119.5MB. Free memory was 90.6MB in the beginning and 78.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 20:10:55,634 INFO L158 Benchmark]: TraceAbstraction took 3249.69ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 77.3MB in the beginning and 55.2MB in the end (delta: 22.2MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2022-12-13 20:10:55,635 INFO L158 Benchmark]: Witness Printer took 37.39ms. Allocated memory is still 144.7MB. Free memory was 54.1MB in the beginning and 52.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:10:55,637 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 119.5MB. Free memory was 92.4MB in the beginning and 92.4MB in the end (delta: 90.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.70ms. Allocated memory is still 119.5MB. Free memory was 83.8MB in the beginning and 64.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.24ms. Allocated memory is still 119.5MB. Free memory was 64.9MB in the beginning and 92.6MB in the end (delta: -27.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.72ms. Allocated memory is still 119.5MB. Free memory was 92.6MB in the beginning and 91.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 300.47ms. Allocated memory is still 119.5MB. Free memory was 90.6MB in the beginning and 78.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3249.69ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 77.3MB in the beginning and 55.2MB in the end (delta: 22.2MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. * Witness Printer took 37.39ms. Allocated memory is still 144.7MB. Free memory was 54.1MB in the beginning and 52.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 71 PlacesBefore, 10 PlacesAfterwards, 70 TransitionsBefore, 7 TransitionsAfterwards, 432 CoEnabledTransitionPairs, 7 FixpointIterations, 33 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 17 ConcurrentYvCompositions, 2 ChoiceCompositions, 77 TotalNumberOfCompositions, 321 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 321, independent: 321, independent conditional: 0, independent unconditional: 321, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 237, independent: 237, independent conditional: 0, independent unconditional: 237, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 321, independent: 84, independent conditional: 0, independent unconditional: 84, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 237, unknown conditional: 0, unknown unconditional: 237] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 101 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: 3.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 1 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 20:10:55,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e04df1-9a3f-46d6-a0e7-a92fead98a3c/bin/uautomizer-uyxdKDjOR8/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 Result: TRUE