./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe031_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe031_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c5111fe11e917830ff927fef759eebec65ab7406e64ef6d78fce931b0e70c57 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:39:04,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:39:04,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:39:04,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:39:04,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:39:04,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:39:04,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:39:04,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:39:04,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:39:04,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:39:04,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:39:04,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:39:04,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:39:04,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:39:04,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:39:04,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:39:04,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:39:04,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:39:04,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:39:04,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:39:04,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:39:04,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:39:04,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:39:04,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:39:04,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:39:04,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:39:04,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:39:04,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:39:04,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:39:04,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:39:04,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:39:04,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:39:04,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:39:04,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:39:04,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:39:04,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:39:04,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:39:04,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:39:04,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:39:04,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:39:04,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:39:04,365 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:39:04,406 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:39:04,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:39:04,407 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:39:04,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:39:04,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:39:04,409 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:39:04,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:39:04,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:39:04,410 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:39:04,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:39:04,412 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:39:04,412 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:39:04,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:39:04,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:39:04,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:39:04,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:39:04,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:39:04,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:39:04,414 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:39:04,414 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:39:04,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:39:04,414 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:39:04,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:39:04,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:39:04,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:39:04,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:39:04,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:39:04,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:39:04,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:39:04,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:39:04,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:39:04,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:39:04,419 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:39:04,419 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:39:04,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:39:04,420 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c5111fe11e917830ff927fef759eebec65ab7406e64ef6d78fce931b0e70c57 [2022-11-18 20:39:04,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:39:04,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:39:04,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:39:04,731 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:39:04,732 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:39:04,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/safe031_power.oepc_pso.oepc_rmo.oepc.i [2022-11-18 20:39:04,805 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/bin/uautomizer-TMbwUNV5ro/data/18f2356fc/bbcee5026cf44b259e2cff0f41ccfbbe/FLAG0c79af12f [2022-11-18 20:39:05,495 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:39:05,496 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/sv-benchmarks/c/pthread-wmm/safe031_power.oepc_pso.oepc_rmo.oepc.i [2022-11-18 20:39:05,517 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/bin/uautomizer-TMbwUNV5ro/data/18f2356fc/bbcee5026cf44b259e2cff0f41ccfbbe/FLAG0c79af12f [2022-11-18 20:39:05,778 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/bin/uautomizer-TMbwUNV5ro/data/18f2356fc/bbcee5026cf44b259e2cff0f41ccfbbe [2022-11-18 20:39:05,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:39:05,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:39:05,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:39:05,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:39:05,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:39:05,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:39:05" (1/1) ... [2022-11-18 20:39:05,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dceb84c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:05, skipping insertion in model container [2022-11-18 20:39:05,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:39:05" (1/1) ... [2022-11-18 20:39:05,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:39:05,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:39:06,068 WARN L234 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_269013af-5c59-4184-8d81-832336cbaf1f/sv-benchmarks/c/pthread-wmm/safe031_power.oepc_pso.oepc_rmo.oepc.i[1013,1026] [2022-11-18 20:39:06,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:39:06,309 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:39:06,323 WARN L234 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_269013af-5c59-4184-8d81-832336cbaf1f/sv-benchmarks/c/pthread-wmm/safe031_power.oepc_pso.oepc_rmo.oepc.i[1013,1026] [2022-11-18 20:39:06,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:39:06,442 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:39:06,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06 WrapperNode [2022-11-18 20:39:06,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:39:06,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:39:06,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:39:06,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:39:06,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,495 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 129 [2022-11-18 20:39:06,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:39:06,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:39:06,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:39:06,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:39:06,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,528 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:39:06,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:39:06,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:39:06,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:39:06,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (1/1) ... [2022-11-18 20:39:06,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:39:06,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:39:06,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:39:06,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:39:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:39:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:39:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:39:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:39:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:39:06,653 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 20:39:06,653 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 20:39:06,654 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 20:39:06,654 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 20:39:06,654 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-18 20:39:06,654 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-18 20:39:06,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:39:06,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:39:06,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:39:06,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:39:06,657 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:39:06,840 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:39:06,842 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:39:07,351 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:39:07,600 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:39:07,601 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:39:07,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:39:07 BoogieIcfgContainer [2022-11-18 20:39:07,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:39:07,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:39:07,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:39:07,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:39:07,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:39:05" (1/3) ... [2022-11-18 20:39:07,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490febf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:39:07, skipping insertion in model container [2022-11-18 20:39:07,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:39:06" (2/3) ... [2022-11-18 20:39:07,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490febf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:39:07, skipping insertion in model container [2022-11-18 20:39:07,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:39:07" (3/3) ... [2022-11-18 20:39:07,615 INFO L112 eAbstractionObserver]: Analyzing ICFG safe031_power.oepc_pso.oepc_rmo.oepc.i [2022-11-18 20:39:07,624 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:39:07,635 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:39:07,636 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-18 20:39:07,636 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:39:07,727 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:39:07,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 125 places, 117 transitions, 249 flow [2022-11-18 20:39:07,844 INFO L130 PetriNetUnfolder]: 2/114 cut-off events. [2022-11-18 20:39:07,844 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:39:07,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 2/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2022-11-18 20:39:07,850 INFO L82 GeneralOperation]: Start removeDead. Operand has 125 places, 117 transitions, 249 flow [2022-11-18 20:39:07,856 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 114 transitions, 237 flow [2022-11-18 20:39:07,866 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:39:07,875 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;@339a4660, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:39:07,877 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-18 20:39:07,911 INFO L130 PetriNetUnfolder]: 0/49 cut-off events. [2022-11-18 20:39:07,914 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:39:07,914 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:39:07,915 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:39:07,916 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:39:07,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:39:07,923 INFO L85 PathProgramCache]: Analyzing trace with hash 78742968, now seen corresponding path program 1 times [2022-11-18 20:39:07,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:39:07,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324737411] [2022-11-18 20:39:07,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:39:07,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:39:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:39:08,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:39:08,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:39:08,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324737411] [2022-11-18 20:39:08,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324737411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:39:08,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:39:08,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:39:08,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592947639] [2022-11-18 20:39:08,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:39:08,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:39:08,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:39:08,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:39:08,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:39:08,430 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 117 [2022-11-18 20:39:08,437 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 114 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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) [2022-11-18 20:39:08,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:39:08,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 117 [2022-11-18 20:39:08,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:39:08,993 INFO L130 PetriNetUnfolder]: 425/1117 cut-off events. [2022-11-18 20:39:08,993 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-18 20:39:09,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1853 conditions, 1117 events. 425/1117 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 7251 event pairs, 114 based on Foata normal form. 45/899 useless extension candidates. Maximal degree in co-relation 1802. Up to 590 conditions per place. [2022-11-18 20:39:09,012 INFO L137 encePairwiseOnDemand]: 105/117 looper letters, 26 selfloop transitions, 4 changer transitions 0/122 dead transitions. [2022-11-18 20:39:09,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 122 transitions, 319 flow [2022-11-18 20:39:09,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:39:09,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:39:09,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 325 transitions. [2022-11-18 20:39:09,035 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9259259259259259 [2022-11-18 20:39:09,036 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 325 transitions. [2022-11-18 20:39:09,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 325 transitions. [2022-11-18 20:39:09,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:39:09,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 325 transitions. [2022-11-18 20:39:09,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2022-11-18 20:39:09,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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) [2022-11-18 20:39:09,059 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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) [2022-11-18 20:39:09,061 INFO L175 Difference]: Start difference. First operand has 122 places, 114 transitions, 237 flow. Second operand 3 states and 325 transitions. [2022-11-18 20:39:09,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 122 transitions, 319 flow [2022-11-18 20:39:09,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 122 transitions, 314 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:39:09,076 INFO L231 Difference]: Finished difference. Result has 121 places, 114 transitions, 264 flow [2022-11-18 20:39:09,078 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=121, PETRI_TRANSITIONS=114} [2022-11-18 20:39:09,083 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, -1 predicate places. [2022-11-18 20:39:09,083 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 114 transitions, 264 flow [2022-11-18 20:39:09,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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) [2022-11-18 20:39:09,084 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:39:09,085 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:39:09,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:39:09,086 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:39:09,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:39:09,087 INFO L85 PathProgramCache]: Analyzing trace with hash -769990189, now seen corresponding path program 1 times [2022-11-18 20:39:09,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:39:09,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814571601] [2022-11-18 20:39:09,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:39:09,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:39:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:39:09,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:39:09,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:39:09,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814571601] [2022-11-18 20:39:09,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814571601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:39:09,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:39:09,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:39:09,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895323714] [2022-11-18 20:39:09,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:39:09,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:39:09,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:39:09,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:39:09,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:39:09,414 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 117 [2022-11-18 20:39:09,415 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 114 transitions, 264 flow. Second operand has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2022-11-18 20:39:09,415 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:39:09,415 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 117 [2022-11-18 20:39:09,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:39:09,832 INFO L130 PetriNetUnfolder]: 305/1165 cut-off events. [2022-11-18 20:39:09,832 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-11-18 20:39:09,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1974 conditions, 1165 events. 305/1165 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 7981 event pairs, 130 based on Foata normal form. 0/1001 useless extension candidates. Maximal degree in co-relation 1923. Up to 286 conditions per place. [2022-11-18 20:39:09,843 INFO L137 encePairwiseOnDemand]: 107/117 looper letters, 30 selfloop transitions, 10 changer transitions 3/135 dead transitions. [2022-11-18 20:39:09,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 135 transitions, 410 flow [2022-11-18 20:39:09,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:39:09,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:39:09,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 426 transitions. [2022-11-18 20:39:09,846 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9102564102564102 [2022-11-18 20:39:09,846 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 426 transitions. [2022-11-18 20:39:09,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 426 transitions. [2022-11-18 20:39:09,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:39:09,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 426 transitions. [2022-11-18 20:39:09,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 106.5) internal successors, (426), 4 states have internal predecessors, (426), 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) [2022-11-18 20:39:09,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 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) [2022-11-18 20:39:09,850 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 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) [2022-11-18 20:39:09,850 INFO L175 Difference]: Start difference. First operand has 121 places, 114 transitions, 264 flow. Second operand 4 states and 426 transitions. [2022-11-18 20:39:09,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 135 transitions, 410 flow [2022-11-18 20:39:09,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 135 transitions, 406 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:39:09,855 INFO L231 Difference]: Finished difference. Result has 125 places, 117 transitions, 320 flow [2022-11-18 20:39:09,855 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=320, PETRI_PLACES=125, PETRI_TRANSITIONS=117} [2022-11-18 20:39:09,856 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, 3 predicate places. [2022-11-18 20:39:09,856 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 117 transitions, 320 flow [2022-11-18 20:39:09,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2022-11-18 20:39:09,857 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:39:09,857 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:39:09,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:39:09,857 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:39:09,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:39:09,858 INFO L85 PathProgramCache]: Analyzing trace with hash 527812410, now seen corresponding path program 1 times [2022-11-18 20:39:09,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:39:09,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490561794] [2022-11-18 20:39:09,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:39:09,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:39:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:39:09,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:39:09,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:39:09,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490561794] [2022-11-18 20:39:09,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490561794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:39:09,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:39:09,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:39:09,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246659324] [2022-11-18 20:39:09,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:39:09,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:39:09,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:39:10,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:39:10,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:39:10,002 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 117 [2022-11-18 20:39:10,002 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 117 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2022-11-18 20:39:10,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:39:10,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 117 [2022-11-18 20:39:10,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:39:10,327 INFO L130 PetriNetUnfolder]: 207/915 cut-off events. [2022-11-18 20:39:10,328 INFO L131 PetriNetUnfolder]: For 535/535 co-relation queries the response was YES. [2022-11-18 20:39:10,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1550 conditions, 915 events. 207/915 cut-off events. For 535/535 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5830 event pairs, 109 based on Foata normal form. 53/904 useless extension candidates. Maximal degree in co-relation 1496. Up to 235 conditions per place. [2022-11-18 20:39:10,339 INFO L137 encePairwiseOnDemand]: 110/117 looper letters, 23 selfloop transitions, 4 changer transitions 0/119 dead transitions. [2022-11-18 20:39:10,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 119 transitions, 352 flow [2022-11-18 20:39:10,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:39:10,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:39:10,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 410 transitions. [2022-11-18 20:39:10,341 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8760683760683761 [2022-11-18 20:39:10,341 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 410 transitions. [2022-11-18 20:39:10,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 410 transitions. [2022-11-18 20:39:10,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:39:10,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 410 transitions. [2022-11-18 20:39:10,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 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) [2022-11-18 20:39:10,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 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) [2022-11-18 20:39:10,346 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 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) [2022-11-18 20:39:10,346 INFO L175 Difference]: Start difference. First operand has 125 places, 117 transitions, 320 flow. Second operand 4 states and 410 transitions. [2022-11-18 20:39:10,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 119 transitions, 352 flow [2022-11-18 20:39:10,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 119 transitions, 334 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-11-18 20:39:10,355 INFO L231 Difference]: Finished difference. Result has 122 places, 111 transitions, 268 flow [2022-11-18 20:39:10,355 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=268, PETRI_PLACES=122, PETRI_TRANSITIONS=111} [2022-11-18 20:39:10,358 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, 0 predicate places. [2022-11-18 20:39:10,358 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 111 transitions, 268 flow [2022-11-18 20:39:10,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2022-11-18 20:39:10,359 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:39:10,359 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:39:10,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:39:10,360 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:39:10,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:39:10,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1808831652, now seen corresponding path program 1 times [2022-11-18 20:39:10,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:39:10,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370237642] [2022-11-18 20:39:10,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:39:10,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:39:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:39:10,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:39:10,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:39:10,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370237642] [2022-11-18 20:39:10,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370237642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:39:10,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:39:10,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:39:10,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049307615] [2022-11-18 20:39:10,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:39:10,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:39:10,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:39:10,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:39:10,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:39:10,566 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 117 [2022-11-18 20:39:10,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 111 transitions, 268 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2022-11-18 20:39:10,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:39:10,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 117 [2022-11-18 20:39:10,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:39:10,776 INFO L130 PetriNetUnfolder]: 201/718 cut-off events. [2022-11-18 20:39:10,776 INFO L131 PetriNetUnfolder]: For 282/282 co-relation queries the response was YES. [2022-11-18 20:39:10,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1285 conditions, 718 events. 201/718 cut-off events. For 282/282 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4204 event pairs, 57 based on Foata normal form. 9/689 useless extension candidates. Maximal degree in co-relation 1232. Up to 149 conditions per place. [2022-11-18 20:39:10,780 INFO L137 encePairwiseOnDemand]: 110/117 looper letters, 0 selfloop transitions, 0 changer transitions 123/123 dead transitions. [2022-11-18 20:39:10,780 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 123 transitions, 348 flow [2022-11-18 20:39:10,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:39:10,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:39:10,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 509 transitions. [2022-11-18 20:39:10,783 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8700854700854701 [2022-11-18 20:39:10,783 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 509 transitions. [2022-11-18 20:39:10,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 509 transitions. [2022-11-18 20:39:10,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:39:10,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 509 transitions. [2022-11-18 20:39:10,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 101.8) internal successors, (509), 5 states have internal predecessors, (509), 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) [2022-11-18 20:39:10,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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) [2022-11-18 20:39:10,787 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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) [2022-11-18 20:39:10,788 INFO L175 Difference]: Start difference. First operand has 122 places, 111 transitions, 268 flow. Second operand 5 states and 509 transitions. [2022-11-18 20:39:10,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 123 transitions, 348 flow [2022-11-18 20:39:10,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 123 transitions, 333 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:39:10,791 INFO L231 Difference]: Finished difference. Result has 119 places, 0 transitions, 0 flow [2022-11-18 20:39:10,791 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=119, PETRI_TRANSITIONS=0} [2022-11-18 20:39:10,792 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, -3 predicate places. [2022-11-18 20:39:10,792 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 0 transitions, 0 flow [2022-11-18 20:39:10,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2022-11-18 20:39:10,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-18 20:39:10,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-18 20:39:10,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-18 20:39:10,797 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-18 20:39:10,797 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-18 20:39:10,797 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-18 20:39:10,797 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-18 20:39:10,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-18 20:39:10,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-18 20:39:10,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-18 20:39:10,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-18 20:39:10,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-18 20:39:10,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-18 20:39:10,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-18 20:39:10,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-18 20:39:10,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:39:10,800 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-18 20:39:10,805 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:39:10,806 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:39:10,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:39:10 BasicIcfg [2022-11-18 20:39:10,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:39:10,812 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:39:10,812 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:39:10,812 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:39:10,813 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:39:07" (3/4) ... [2022-11-18 20:39:10,816 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:39:10,821 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-18 20:39:10,821 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-18 20:39:10,821 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-18 20:39:10,826 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-18 20:39:10,826 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 20:39:10,826 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:39:10,826 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:39:10,862 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:39:10,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:39:10,863 INFO L158 Benchmark]: Toolchain (without parser) took 5080.78ms. Allocated memory was 113.2MB in the beginning and 203.4MB in the end (delta: 90.2MB). Free memory was 82.1MB in the beginning and 133.3MB in the end (delta: -51.3MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2022-11-18 20:39:10,863 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:39:10,863 INFO L158 Benchmark]: CACSL2BoogieTranslator took 659.80ms. Allocated memory is still 113.2MB. Free memory was 82.1MB in the beginning and 75.7MB in the end (delta: 6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:39:10,864 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.95ms. Allocated memory is still 113.2MB. Free memory was 75.7MB in the beginning and 73.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:39:10,864 INFO L158 Benchmark]: Boogie Preprocessor took 36.70ms. Allocated memory is still 113.2MB. Free memory was 73.1MB in the beginning and 71.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:39:10,865 INFO L158 Benchmark]: RCFGBuilder took 1069.61ms. Allocated memory was 113.2MB in the beginning and 140.5MB in the end (delta: 27.3MB). Free memory was 71.0MB in the beginning and 109.9MB in the end (delta: -38.9MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2022-11-18 20:39:10,865 INFO L158 Benchmark]: TraceAbstraction took 3205.60ms. Allocated memory was 140.5MB in the beginning and 203.4MB in the end (delta: 62.9MB). Free memory was 109.1MB in the beginning and 135.4MB in the end (delta: -26.3MB). Peak memory consumption was 118.8MB. Max. memory is 16.1GB. [2022-11-18 20:39:10,865 INFO L158 Benchmark]: Witness Printer took 50.00ms. Allocated memory is still 203.4MB. Free memory was 135.4MB in the beginning and 133.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:39:10,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 659.80ms. Allocated memory is still 113.2MB. Free memory was 82.1MB in the beginning and 75.7MB in the end (delta: 6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.95ms. Allocated memory is still 113.2MB. Free memory was 75.7MB in the beginning and 73.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.70ms. Allocated memory is still 113.2MB. Free memory was 73.1MB in the beginning and 71.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1069.61ms. Allocated memory was 113.2MB in the beginning and 140.5MB in the end (delta: 27.3MB). Free memory was 71.0MB in the beginning and 109.9MB in the end (delta: -38.9MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3205.60ms. Allocated memory was 140.5MB in the beginning and 203.4MB in the end (delta: 62.9MB). Free memory was 109.1MB in the beginning and 135.4MB in the end (delta: -26.3MB). Peak memory consumption was 118.8MB. Max. memory is 16.1GB. * Witness Printer took 50.00ms. Allocated memory is still 203.4MB. Free memory was 135.4MB in the beginning and 133.3MB 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: - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 814]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 814]: 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 7 procedures, 148 locations, 15 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: 3.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 162 IncrementalHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 10 mSDtfsCounter, 162 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=320occurred in iteration=2, InterpolantAutomatonStates: 16, 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, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 228 ConstructedInterpolants, 0 QuantifiedInterpolants, 532 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 20:39:10,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269013af-5c59-4184-8d81-832336cbaf1f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE