./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix036.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_69782a4e-a710-4c0e-9af8-70ccec278276/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69782a4e-a710-4c0e-9af8-70ccec278276/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69782a4e-a710-4c0e-9af8-70ccec278276/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69782a4e-a710-4c0e-9af8-70ccec278276/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix036.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69782a4e-a710-4c0e-9af8-70ccec278276/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69782a4e-a710-4c0e-9af8-70ccec278276/bin/uautomizer-QkZJyEgLgS --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 e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 --- 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-4e7fbc6 [2022-11-23 02:14:35,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:14:35,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:14:35,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:14:35,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:14:35,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:14:35,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:14:35,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:14:35,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:14:35,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:14:35,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:14:35,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:14:35,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:14:35,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:14:35,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:14:35,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:14:35,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:14:35,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:14:35,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:14:35,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:14:35,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:14:35,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:14:35,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:14:35,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:14:35,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:14:35,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:14:35,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:14:35,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:14:35,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:14:35,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:14:35,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:14:35,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:14:35,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:14:35,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:14:35,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:14:35,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:14:35,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:14:35,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:14:35,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:14:35,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:14:35,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:14:35,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69782a4e-a710-4c0e-9af8-70ccec278276/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 02:14:35,394 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:14:35,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:14:35,397 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:14:35,397 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:14:35,398 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:14:35,398 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:14:35,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:14:35,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:14:35,399 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:14:35,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:14:35,401 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:14:35,401 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:14:35,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:14:35,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:14:35,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:14:35,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:14:35,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:14:35,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:14:35,403 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 02:14:35,404 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:14:35,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:14:35,404 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:14:35,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:14:35,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:14:35,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:14:35,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:14:35,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:14:35,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:14:35,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:14:35,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:14:35,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:14:35,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:14:35,407 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:14:35,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:14:35,408 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:14:35,408 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:14:35,408 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_69782a4e-a710-4c0e-9af8-70ccec278276/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69782a4e-a710-4c0e-9af8-70ccec278276/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 [2022-11-23 02:14:35,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:14:35,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:14:35,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:14:35,760 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:14:35,761 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:14:35,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69782a4e-a710-4c0e-9af8-70ccec278276/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/pthread-wmm/mix036.oepc.i [2022-11-23 02:14:39,100 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:14:39,366 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:14:39,367 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69782a4e-a710-4c0e-9af8-70ccec278276/sv-benchmarks/c/pthread-wmm/mix036.oepc.i [2022-11-23 02:14:39,382 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69782a4e-a710-4c0e-9af8-70ccec278276/bin/uautomizer-QkZJyEgLgS/data/46cd798b9/f258dd3fc2f64149a6a8aaae41354dd9/FLAGae227c32c [2022-11-23 02:14:39,408 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69782a4e-a710-4c0e-9af8-70ccec278276/bin/uautomizer-QkZJyEgLgS/data/46cd798b9/f258dd3fc2f64149a6a8aaae41354dd9 [2022-11-23 02:14:39,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:14:39,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:14:39,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:14:39,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:14:39,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:14:39,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:14:39" (1/1) ... [2022-11-23 02:14:39,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@288d6c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:39, skipping insertion in model container [2022-11-23 02:14:39,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:14:39" (1/1) ... [2022-11-23 02:14:39,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:14:39,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:14:39,666 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_69782a4e-a710-4c0e-9af8-70ccec278276/sv-benchmarks/c/pthread-wmm/mix036.oepc.i[945,958] [2022-11-23 02:14:39,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:14:39,984 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:14:40,002 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_69782a4e-a710-4c0e-9af8-70ccec278276/sv-benchmarks/c/pthread-wmm/mix036.oepc.i[945,958] [2022-11-23 02:14:40,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:14:40,117 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:14:40,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:40 WrapperNode [2022-11-23 02:14:40,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:14:40,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:14:40,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:14:40,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:14:40,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:40" (1/1) ... [2022-11-23 02:14:40,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:40" (1/1) ... [2022-11-23 02:14:40,168 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 149 [2022-11-23 02:14:40,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:14:40,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:14:40,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:14:40,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:14:40,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:40" (1/1) ... [2022-11-23 02:14:40,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:40" (1/1) ... [2022-11-23 02:14:40,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:40" (1/1) ... [2022-11-23 02:14:40,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:40" (1/1) ... [2022-11-23 02:14:40,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:40" (1/1) ... [2022-11-23 02:14:40,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:40" (1/1) ... [2022-11-23 02:14:40,199 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:40" (1/1) ... [2022-11-23 02:14:40,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:40" (1/1) ... [2022-11-23 02:14:40,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:14:40,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:14:40,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:14:40,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:14:40,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:40" (1/1) ... [2022-11-23 02:14:40,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:14:40,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69782a4e-a710-4c0e-9af8-70ccec278276/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:14:40,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69782a4e-a710-4c0e-9af8-70ccec278276/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:14:40,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69782a4e-a710-4c0e-9af8-70ccec278276/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:14:40,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 02:14:40,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 02:14:40,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:14:40,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:14:40,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:14:40,349 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-23 02:14:40,349 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-23 02:14:40,349 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-23 02:14:40,349 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-23 02:14:40,350 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-23 02:14:40,350 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-23 02:14:40,350 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-23 02:14:40,350 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-23 02:14:40,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:14:40,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 02:14:40,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:14:40,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:14:40,353 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 02:14:40,549 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:14:40,551 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:14:41,123 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:14:41,388 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:14:41,389 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 02:14:41,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:14:41 BoogieIcfgContainer [2022-11-23 02:14:41,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:14:41,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:14:41,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:14:41,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:14:41,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:14:39" (1/3) ... [2022-11-23 02:14:41,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3351c0bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:14:41, skipping insertion in model container [2022-11-23 02:14:41,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:40" (2/3) ... [2022-11-23 02:14:41,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3351c0bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:14:41, skipping insertion in model container [2022-11-23 02:14:41,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:14:41" (3/3) ... [2022-11-23 02:14:41,407 INFO L112 eAbstractionObserver]: Analyzing ICFG mix036.oepc.i [2022-11-23 02:14:41,418 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 02:14:41,429 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:14:41,430 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-23 02:14:41,430 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 02:14:41,511 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 02:14:41,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 147 transitions, 314 flow [2022-11-23 02:14:41,690 INFO L130 PetriNetUnfolder]: 2/143 cut-off events. [2022-11-23 02:14:41,691 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:14:41,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 143 events. 2/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 97 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-11-23 02:14:41,698 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 147 transitions, 314 flow [2022-11-23 02:14:41,707 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 154 places, 143 transitions, 298 flow [2022-11-23 02:14:41,712 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 02:14:41,730 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 154 places, 143 transitions, 298 flow [2022-11-23 02:14:41,733 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 154 places, 143 transitions, 298 flow [2022-11-23 02:14:41,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 143 transitions, 298 flow [2022-11-23 02:14:41,765 INFO L130 PetriNetUnfolder]: 2/143 cut-off events. [2022-11-23 02:14:41,765 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:14:41,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 143 events. 2/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 96 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-11-23 02:14:41,769 INFO L119 LiptonReduction]: Number of co-enabled transitions 4420 [2022-11-23 02:14:48,347 INFO L134 LiptonReduction]: Checked pairs total: 16760 [2022-11-23 02:14:48,348 INFO L136 LiptonReduction]: Total number of compositions: 122 [2022-11-23 02:14:48,364 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:14:48,371 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;@1565a434, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:14:48,371 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-23 02:14:48,377 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2022-11-23 02:14:48,377 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:14:48,378 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:48,378 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 02:14:48,379 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-23 02:14:48,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:48,385 INFO L85 PathProgramCache]: Analyzing trace with hash 593594739, now seen corresponding path program 1 times [2022-11-23 02:14:48,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:48,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580406138] [2022-11-23 02:14:48,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:48,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:48,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:48,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:48,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580406138] [2022-11-23 02:14:48,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580406138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:48,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:48,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 02:14:48,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385506203] [2022-11-23 02:14:48,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:48,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:14:48,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:48,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:14:48,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:14:48,773 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 269 [2022-11-23 02:14:48,776 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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) [2022-11-23 02:14:48,776 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:48,776 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 269 [2022-11-23 02:14:48,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:51,417 INFO L130 PetriNetUnfolder]: 9717/13525 cut-off events. [2022-11-23 02:14:51,417 INFO L131 PetriNetUnfolder]: For 109/109 co-relation queries the response was YES. [2022-11-23 02:14:51,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27299 conditions, 13525 events. 9717/13525 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 698. Compared 78227 event pairs, 2763 based on Foata normal form. 0/10161 useless extension candidates. Maximal degree in co-relation 27287. Up to 11755 conditions per place. [2022-11-23 02:14:51,534 INFO L137 encePairwiseOnDemand]: 255/269 looper letters, 49 selfloop transitions, 5 changer transitions 0/58 dead transitions. [2022-11-23 02:14:51,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 58 transitions, 245 flow [2022-11-23 02:14:51,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:14:51,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:14:51,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 424 transitions. [2022-11-23 02:14:51,559 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5254027261462205 [2022-11-23 02:14:51,560 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 424 transitions. [2022-11-23 02:14:51,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 424 transitions. [2022-11-23 02:14:51,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:51,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 424 transitions. [2022-11-23 02:14:51,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 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) [2022-11-23 02:14:51,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 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) [2022-11-23 02:14:51,578 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 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) [2022-11-23 02:14:51,580 INFO L175 Difference]: Start difference. First operand has 49 places, 37 transitions, 86 flow. Second operand 3 states and 424 transitions. [2022-11-23 02:14:51,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 58 transitions, 245 flow [2022-11-23 02:14:51,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 58 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-23 02:14:51,590 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 127 flow [2022-11-23 02:14:51,592 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2022-11-23 02:14:51,595 INFO L288 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2022-11-23 02:14:51,595 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 127 flow [2022-11-23 02:14:51,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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) [2022-11-23 02:14:51,596 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:51,596 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:14:51,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:14:51,597 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-23 02:14:51,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:51,597 INFO L85 PathProgramCache]: Analyzing trace with hash 708220180, now seen corresponding path program 1 times [2022-11-23 02:14:51,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:51,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407319542] [2022-11-23 02:14:51,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:51,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:51,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:51,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:51,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407319542] [2022-11-23 02:14:51,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407319542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:51,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:51,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:14:51,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883326783] [2022-11-23 02:14:51,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:51,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 02:14:51,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:51,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:14:51,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:14:51,809 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 269 [2022-11-23 02:14:51,810 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 127 flow. Second operand has 4 states, 4 states have (on average 122.25) internal successors, (489), 4 states have internal predecessors, (489), 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) [2022-11-23 02:14:51,810 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:51,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 269 [2022-11-23 02:14:51,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:53,365 INFO L130 PetriNetUnfolder]: 6207/8623 cut-off events. [2022-11-23 02:14:53,365 INFO L131 PetriNetUnfolder]: For 489/498 co-relation queries the response was YES. [2022-11-23 02:14:53,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20930 conditions, 8623 events. 6207/8623 cut-off events. For 489/498 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 45284 event pairs, 1715 based on Foata normal form. 1147/8580 useless extension candidates. Maximal degree in co-relation 20919. Up to 6852 conditions per place. [2022-11-23 02:14:53,424 INFO L137 encePairwiseOnDemand]: 260/269 looper letters, 45 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2022-11-23 02:14:53,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 54 transitions, 253 flow [2022-11-23 02:14:53,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:14:53,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-23 02:14:53,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 534 transitions. [2022-11-23 02:14:53,426 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4962825278810409 [2022-11-23 02:14:53,426 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 534 transitions. [2022-11-23 02:14:53,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 534 transitions. [2022-11-23 02:14:53,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:53,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 534 transitions. [2022-11-23 02:14:53,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 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) [2022-11-23 02:14:53,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 269.0) internal successors, (1345), 5 states have internal predecessors, (1345), 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) [2022-11-23 02:14:53,433 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 269.0) internal successors, (1345), 5 states have internal predecessors, (1345), 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) [2022-11-23 02:14:53,434 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 127 flow. Second operand 4 states and 534 transitions. [2022-11-23 02:14:53,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 54 transitions, 253 flow [2022-11-23 02:14:53,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 54 transitions, 248 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 02:14:53,445 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 116 flow [2022-11-23 02:14:53,445 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=116, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2022-11-23 02:14:53,446 INFO L288 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2022-11-23 02:14:53,446 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 116 flow [2022-11-23 02:14:53,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 122.25) internal successors, (489), 4 states have internal predecessors, (489), 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) [2022-11-23 02:14:53,447 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:53,447 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:14:53,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 02:14:53,448 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-23 02:14:53,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:53,452 INFO L85 PathProgramCache]: Analyzing trace with hash 476625889, now seen corresponding path program 1 times [2022-11-23 02:14:53,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:53,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877321942] [2022-11-23 02:14:53,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:53,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:53,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:53,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:53,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877321942] [2022-11-23 02:14:53,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877321942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:53,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:53,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:14:53,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534964685] [2022-11-23 02:14:53,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:53,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 02:14:53,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:53,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:14:53,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:14:53,592 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 269 [2022-11-23 02:14:53,593 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 122.5) internal successors, (490), 4 states have internal predecessors, (490), 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) [2022-11-23 02:14:53,593 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:53,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 269 [2022-11-23 02:14:53,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:54,772 INFO L130 PetriNetUnfolder]: 4260/5954 cut-off events. [2022-11-23 02:14:54,773 INFO L131 PetriNetUnfolder]: For 1576/1576 co-relation queries the response was YES. [2022-11-23 02:14:54,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14259 conditions, 5954 events. 4260/5954 cut-off events. For 1576/1576 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 30171 event pairs, 1261 based on Foata normal form. 0/5680 useless extension candidates. Maximal degree in co-relation 14247. Up to 2277 conditions per place. [2022-11-23 02:14:54,820 INFO L137 encePairwiseOnDemand]: 260/269 looper letters, 61 selfloop transitions, 9 changer transitions 0/74 dead transitions. [2022-11-23 02:14:54,821 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 74 transitions, 350 flow [2022-11-23 02:14:54,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:14:54,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-23 02:14:54,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 554 transitions. [2022-11-23 02:14:54,823 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5148698884758365 [2022-11-23 02:14:54,824 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 554 transitions. [2022-11-23 02:14:54,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 554 transitions. [2022-11-23 02:14:54,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:54,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 554 transitions. [2022-11-23 02:14:54,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 138.5) internal successors, (554), 4 states have internal predecessors, (554), 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) [2022-11-23 02:14:54,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 269.0) internal successors, (1345), 5 states have internal predecessors, (1345), 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) [2022-11-23 02:14:54,831 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 269.0) internal successors, (1345), 5 states have internal predecessors, (1345), 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) [2022-11-23 02:14:54,831 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 116 flow. Second operand 4 states and 554 transitions. [2022-11-23 02:14:54,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 74 transitions, 350 flow [2022-11-23 02:14:54,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 74 transitions, 344 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 02:14:54,837 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 168 flow [2022-11-23 02:14:54,838 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2022-11-23 02:14:54,840 INFO L288 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2022-11-23 02:14:54,841 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 168 flow [2022-11-23 02:14:54,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 122.5) internal successors, (490), 4 states have internal predecessors, (490), 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) [2022-11-23 02:14:54,842 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:54,842 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:14:54,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 02:14:54,843 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-23 02:14:54,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:54,843 INFO L85 PathProgramCache]: Analyzing trace with hash -94870111, now seen corresponding path program 1 times [2022-11-23 02:14:54,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:54,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182553497] [2022-11-23 02:14:54,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:54,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:55,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:55,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182553497] [2022-11-23 02:14:55,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182553497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:55,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:55,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:14:55,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251168152] [2022-11-23 02:14:55,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:55,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 02:14:55,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:55,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 02:14:55,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 02:14:55,108 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 269 [2022-11-23 02:14:55,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 168 flow. Second operand has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 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) [2022-11-23 02:14:55,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:55,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 269 [2022-11-23 02:14:55,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:56,259 INFO L130 PetriNetUnfolder]: 3939/5447 cut-off events. [2022-11-23 02:14:56,259 INFO L131 PetriNetUnfolder]: For 3276/3276 co-relation queries the response was YES. [2022-11-23 02:14:56,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14872 conditions, 5447 events. 3939/5447 cut-off events. For 3276/3276 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 27178 event pairs, 1217 based on Foata normal form. 0/5383 useless extension candidates. Maximal degree in co-relation 14859. Up to 2277 conditions per place. [2022-11-23 02:14:56,298 INFO L137 encePairwiseOnDemand]: 260/269 looper letters, 71 selfloop transitions, 13 changer transitions 4/92 dead transitions. [2022-11-23 02:14:56,299 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 92 transitions, 476 flow [2022-11-23 02:14:56,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 02:14:56,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 02:14:56,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 692 transitions. [2022-11-23 02:14:56,301 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5144981412639406 [2022-11-23 02:14:56,301 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 692 transitions. [2022-11-23 02:14:56,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 692 transitions. [2022-11-23 02:14:56,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:56,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 692 transitions. [2022-11-23 02:14:56,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 138.4) internal successors, (692), 5 states have internal predecessors, (692), 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) [2022-11-23 02:14:56,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 269.0) internal successors, (1614), 6 states have internal predecessors, (1614), 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) [2022-11-23 02:14:56,308 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 269.0) internal successors, (1614), 6 states have internal predecessors, (1614), 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) [2022-11-23 02:14:56,308 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 168 flow. Second operand 5 states and 692 transitions. [2022-11-23 02:14:56,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 92 transitions, 476 flow [2022-11-23 02:14:56,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 92 transitions, 458 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-11-23 02:14:56,317 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 192 flow [2022-11-23 02:14:56,317 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=192, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2022-11-23 02:14:56,318 INFO L288 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2022-11-23 02:14:56,318 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 192 flow [2022-11-23 02:14:56,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 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) [2022-11-23 02:14:56,318 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:56,319 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] [2022-11-23 02:14:56,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 02:14:56,319 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-23 02:14:56,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:56,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1751445071, now seen corresponding path program 1 times [2022-11-23 02:14:56,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:56,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273715338] [2022-11-23 02:14:56,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:56,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:56,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:56,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:56,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273715338] [2022-11-23 02:14:56,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273715338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:56,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:56,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 02:14:56,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6526915] [2022-11-23 02:14:56,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:56,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 02:14:56,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:56,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 02:14:56,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 02:14:56,551 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 269 [2022-11-23 02:14:56,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 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) [2022-11-23 02:14:56,552 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:56,552 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 269 [2022-11-23 02:14:56,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:57,549 INFO L130 PetriNetUnfolder]: 3912/5400 cut-off events. [2022-11-23 02:14:57,549 INFO L131 PetriNetUnfolder]: For 3982/3982 co-relation queries the response was YES. [2022-11-23 02:14:57,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15103 conditions, 5400 events. 3912/5400 cut-off events. For 3982/3982 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 26943 event pairs, 1217 based on Foata normal form. 16/5368 useless extension candidates. Maximal degree in co-relation 15089. Up to 2277 conditions per place. [2022-11-23 02:14:57,568 INFO L137 encePairwiseOnDemand]: 260/269 looper letters, 0 selfloop transitions, 0 changer transitions 84/84 dead transitions. [2022-11-23 02:14:57,568 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 84 transitions, 428 flow [2022-11-23 02:14:57,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:14:57,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 02:14:57,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 804 transitions. [2022-11-23 02:14:57,573 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49814126394052044 [2022-11-23 02:14:57,574 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 804 transitions. [2022-11-23 02:14:57,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 804 transitions. [2022-11-23 02:14:57,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:57,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 804 transitions. [2022-11-23 02:14:57,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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) [2022-11-23 02:14:57,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 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) [2022-11-23 02:14:57,589 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 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) [2022-11-23 02:14:57,589 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 192 flow. Second operand 6 states and 804 transitions. [2022-11-23 02:14:57,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 84 transitions, 428 flow [2022-11-23 02:14:57,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 84 transitions, 373 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-23 02:14:57,752 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2022-11-23 02:14:57,752 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2022-11-23 02:14:57,755 INFO L288 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2022-11-23 02:14:57,755 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2022-11-23 02:14:57,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 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) [2022-11-23 02:14:57,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-23 02:14:57,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-23 02:14:57,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-23 02:14:57,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-23 02:14:57,760 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-23 02:14:57,760 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-23 02:14:57,760 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-23 02:14:57,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-23 02:14:57,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-23 02:14:57,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-23 02:14:57,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-23 02:14:57,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-23 02:14:57,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-23 02:14:57,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-23 02:14:57,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-23 02:14:57,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-23 02:14:57,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-23 02:14:57,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-23 02:14:57,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-23 02:14:57,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-23 02:14:57,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 02:14:57,769 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-23 02:14:57,774 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 02:14:57,775 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:14:57,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:14:57 BasicIcfg [2022-11-23 02:14:57,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:14:57,781 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:14:57,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:14:57,782 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:14:57,782 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:14:41" (3/4) ... [2022-11-23 02:14:57,785 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 02:14:57,790 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-23 02:14:57,790 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-23 02:14:57,790 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-23 02:14:57,790 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-23 02:14:57,796 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-23 02:14:57,797 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-23 02:14:57,797 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 02:14:57,797 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 02:14:57,840 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69782a4e-a710-4c0e-9af8-70ccec278276/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 02:14:57,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:14:57,841 INFO L158 Benchmark]: Toolchain (without parser) took 18429.13ms. Allocated memory was 146.8MB in the beginning and 880.8MB in the end (delta: 734.0MB). Free memory was 81.9MB in the beginning and 536.3MB in the end (delta: -454.4MB). Peak memory consumption was 281.3MB. Max. memory is 16.1GB. [2022-11-23 02:14:57,842 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 96.5MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:14:57,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 704.58ms. Allocated memory is still 146.8MB. Free memory was 81.7MB in the beginning and 58.0MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 02:14:57,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.86ms. Allocated memory is still 146.8MB. Free memory was 58.0MB in the beginning and 55.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:14:57,843 INFO L158 Benchmark]: Boogie Preprocessor took 35.51ms. Allocated memory is still 146.8MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:14:57,843 INFO L158 Benchmark]: RCFGBuilder took 1186.50ms. Allocated memory is still 146.8MB. Free memory was 53.3MB in the beginning and 105.8MB in the end (delta: -52.4MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2022-11-23 02:14:57,843 INFO L158 Benchmark]: TraceAbstraction took 16383.74ms. Allocated memory was 146.8MB in the beginning and 880.8MB in the end (delta: 734.0MB). Free memory was 104.7MB in the beginning and 539.4MB in the end (delta: -434.8MB). Peak memory consumption was 612.3MB. Max. memory is 16.1GB. [2022-11-23 02:14:57,844 INFO L158 Benchmark]: Witness Printer took 59.28ms. Allocated memory is still 880.8MB. Free memory was 539.4MB in the beginning and 536.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:14:57,845 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 96.5MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 704.58ms. Allocated memory is still 146.8MB. Free memory was 81.7MB in the beginning and 58.0MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.86ms. Allocated memory is still 146.8MB. Free memory was 58.0MB in the beginning and 55.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.51ms. Allocated memory is still 146.8MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1186.50ms. Allocated memory is still 146.8MB. Free memory was 53.3MB in the beginning and 105.8MB in the end (delta: -52.4MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * TraceAbstraction took 16383.74ms. Allocated memory was 146.8MB in the beginning and 880.8MB in the end (delta: 734.0MB). Free memory was 104.7MB in the beginning and 539.4MB in the end (delta: -434.8MB). Peak memory consumption was 612.3MB. Max. memory is 16.1GB. * Witness Printer took 59.28ms. Allocated memory is still 880.8MB. Free memory was 539.4MB in the beginning and 536.3MB in the end (delta: 3.1MB). 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: 6.6s, 154 PlacesBefore, 49 PlacesAfterwards, 143 TransitionsBefore, 37 TransitionsAfterwards, 4420 CoEnabledTransitionPairs, 8 FixpointIterations, 48 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 122 TotalNumberOfCompositions, 16760 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5768, independent: 5367, independent conditional: 0, independent unconditional: 5367, dependent: 401, dependent conditional: 0, dependent unconditional: 401, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3062, independent: 2979, independent conditional: 0, independent unconditional: 2979, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3062, independent: 2912, independent conditional: 0, independent unconditional: 2912, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 150, independent: 67, independent conditional: 0, independent unconditional: 67, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 665, independent: 172, independent conditional: 0, independent unconditional: 172, dependent: 494, dependent conditional: 0, dependent unconditional: 494, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5768, independent: 2388, independent conditional: 0, independent unconditional: 2388, dependent: 318, dependent conditional: 0, dependent unconditional: 318, unknown: 3062, unknown conditional: 0, unknown unconditional: 3062] , Statistics on independence cache: Total cache size (in pairs): 297, Positive cache size: 263, Positive conditional cache size: 0, Positive unconditional cache size: 263, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 858]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 858]: 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 9 procedures, 192 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: 16.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 344 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 315 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 464 IncrementalHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 13 mSDtfsCounter, 464 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 0.8s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 198 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 02:14:57,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69782a4e-a710-4c0e-9af8-70ccec278276/bin/uautomizer-QkZJyEgLgS/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