./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe007_power.oepc-thin001_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_bc1dd418-5e1d-47d8-8a7d-952747791f12/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1dd418-5e1d-47d8-8a7d-952747791f12/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1dd418-5e1d-47d8-8a7d-952747791f12/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1dd418-5e1d-47d8-8a7d-952747791f12/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe007_power.oepc-thin001_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1dd418-5e1d-47d8-8a7d-952747791f12/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1dd418-5e1d-47d8-8a7d-952747791f12/bin/uautomizer-ug76WZFUDN --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 51eb1f25b31a14b06f8a94357507f98faff1b5d262be3400ea1666eb362dde3f --- 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-6b4ec56 [2022-11-20 10:32:43,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:32:43,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:32:43,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:32:43,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:32:43,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:32:43,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:32:43,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:32:43,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:32:43,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:32:43,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:32:43,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:32:43,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:32:43,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:32:43,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:32:43,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:32:43,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:32:43,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:32:43,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:32:43,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:32:43,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:32:43,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:32:43,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:32:43,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:32:43,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:32:43,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:32:43,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:32:43,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:32:43,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:32:43,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:32:43,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:32:43,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:32:43,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:32:43,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:32:43,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:32:43,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:32:43,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:32:43,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:32:43,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:32:43,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:32:43,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:32:43,486 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1dd418-5e1d-47d8-8a7d-952747791f12/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 10:32:43,531 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:32:43,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:32:43,533 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:32:43,533 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:32:43,534 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:32:43,535 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:32:43,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:32:43,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:32:43,536 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:32:43,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:32:43,538 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:32:43,538 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:32:43,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:32:43,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:32:43,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:32:43,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:32:43,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:32:43,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:32:43,540 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 10:32:43,540 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:32:43,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:32:43,541 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:32:43,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:32:43,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:32:43,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:32:43,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:32:43,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:32:43,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:32:43,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:32:43,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:32:43,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:32:43,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:32:43,545 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:32:43,545 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:32:43,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:32:43,546 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_bc1dd418-5e1d-47d8-8a7d-952747791f12/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1dd418-5e1d-47d8-8a7d-952747791f12/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51eb1f25b31a14b06f8a94357507f98faff1b5d262be3400ea1666eb362dde3f [2022-11-20 10:32:43,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:32:43,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:32:43,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:32:43,875 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:32:43,875 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:32:43,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1dd418-5e1d-47d8-8a7d-952747791f12/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/safe007_power.oepc-thin001_power.oepc.i [2022-11-20 10:32:46,896 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:32:47,319 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:32:47,319 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1dd418-5e1d-47d8-8a7d-952747791f12/sv-benchmarks/c/pthread-wmm/safe007_power.oepc-thin001_power.oepc.i [2022-11-20 10:32:47,336 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1dd418-5e1d-47d8-8a7d-952747791f12/bin/uautomizer-ug76WZFUDN/data/d490613c6/54360127a7744378b6419db9c8e4d804/FLAG528f4280f [2022-11-20 10:32:47,359 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1dd418-5e1d-47d8-8a7d-952747791f12/bin/uautomizer-ug76WZFUDN/data/d490613c6/54360127a7744378b6419db9c8e4d804 [2022-11-20 10:32:47,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:32:47,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:32:47,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:32:47,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:32:47,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:32:47,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:32:47" (1/1) ... [2022-11-20 10:32:47,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@105d8630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:47, skipping insertion in model container [2022-11-20 10:32:47,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:32:47" (1/1) ... [2022-11-20 10:32:47,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:32:47,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:32:47,636 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_bc1dd418-5e1d-47d8-8a7d-952747791f12/sv-benchmarks/c/pthread-wmm/safe007_power.oepc-thin001_power.oepc.i[1014,1027] [2022-11-20 10:32:47,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:32:47,898 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:32:47,910 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_bc1dd418-5e1d-47d8-8a7d-952747791f12/sv-benchmarks/c/pthread-wmm/safe007_power.oepc-thin001_power.oepc.i[1014,1027] [2022-11-20 10:32:47,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:32:48,021 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:32:48,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:48 WrapperNode [2022-11-20 10:32:48,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:32:48,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:32:48,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:32:48,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:32:48,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:48" (1/1) ... [2022-11-20 10:32:48,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:48" (1/1) ... [2022-11-20 10:32:48,090 INFO L138 Inliner]: procedures = 176, calls = 69, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 137 [2022-11-20 10:32:48,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:32:48,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:32:48,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:32:48,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:32:48,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:48" (1/1) ... [2022-11-20 10:32:48,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:48" (1/1) ... [2022-11-20 10:32:48,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:48" (1/1) ... [2022-11-20 10:32:48,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:48" (1/1) ... [2022-11-20 10:32:48,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:48" (1/1) ... [2022-11-20 10:32:48,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:48" (1/1) ... [2022-11-20 10:32:48,124 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:48" (1/1) ... [2022-11-20 10:32:48,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:48" (1/1) ... [2022-11-20 10:32:48,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:32:48,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:32:48,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:32:48,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:32:48,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:48" (1/1) ... [2022-11-20 10:32:48,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:32:48,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1dd418-5e1d-47d8-8a7d-952747791f12/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:48,202 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1dd418-5e1d-47d8-8a7d-952747791f12/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:32:48,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1dd418-5e1d-47d8-8a7d-952747791f12/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:32:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:32:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:32:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 10:32:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:32:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:32:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:32:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 10:32:48,260 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 10:32:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 10:32:48,260 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 10:32:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 10:32:48,261 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 10:32:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:32:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 10:32:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:32:48,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:32:48,263 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:32:48,514 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:32:48,517 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:32:48,998 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:32:49,572 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:32:49,572 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:32:49,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:32:49 BoogieIcfgContainer [2022-11-20 10:32:49,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:32:49,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:32:49,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:32:49,594 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:32:49,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:32:47" (1/3) ... [2022-11-20 10:32:49,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a48c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:32:49, skipping insertion in model container [2022-11-20 10:32:49,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:48" (2/3) ... [2022-11-20 10:32:49,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a48c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:32:49, skipping insertion in model container [2022-11-20 10:32:49,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:32:49" (3/3) ... [2022-11-20 10:32:49,599 INFO L112 eAbstractionObserver]: Analyzing ICFG safe007_power.oepc-thin001_power.oepc.i [2022-11-20 10:32:49,609 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:32:49,620 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:32:49,621 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-20 10:32:49,621 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:32:49,692 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 10:32:49,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 137 transitions, 289 flow [2022-11-20 10:32:49,857 INFO L130 PetriNetUnfolder]: 2/134 cut-off events. [2022-11-20 10:32:49,858 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:32:49,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 134 events. 2/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-11-20 10:32:49,864 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 137 transitions, 289 flow [2022-11-20 10:32:49,874 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 134 transitions, 277 flow [2022-11-20 10:32:49,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:32:49,900 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;@635fa1dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:32:49,900 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-20 10:32:49,917 INFO L130 PetriNetUnfolder]: 0/70 cut-off events. [2022-11-20 10:32:49,917 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:32:49,918 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:49,919 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] [2022-11-20 10:32:49,920 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:32:49,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:49,930 INFO L85 PathProgramCache]: Analyzing trace with hash -26711828, now seen corresponding path program 1 times [2022-11-20 10:32:49,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:49,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250536007] [2022-11-20 10:32:49,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:49,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:50,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:50,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:50,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250536007] [2022-11-20 10:32:50,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250536007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:50,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:50,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:32:50,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556708569] [2022-11-20 10:32:50,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:50,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:32:50,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:50,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:32:50,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:32:50,557 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 137 [2022-11-20 10:32:50,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 134 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2022-11-20 10:32:50,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:50,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 137 [2022-11-20 10:32:50,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:51,207 INFO L130 PetriNetUnfolder]: 370/1646 cut-off events. [2022-11-20 10:32:51,208 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-20 10:32:51,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2287 conditions, 1646 events. 370/1646 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 12981 event pairs, 227 based on Foata normal form. 70/1401 useless extension candidates. Maximal degree in co-relation 2215. Up to 573 conditions per place. [2022-11-20 10:32:51,230 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 24 selfloop transitions, 4 changer transitions 0/141 dead transitions. [2022-11-20 10:32:51,230 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 141 transitions, 353 flow [2022-11-20 10:32:51,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:32:51,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:32:51,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2022-11-20 10:32:51,255 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9391727493917275 [2022-11-20 10:32:51,256 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 386 transitions. [2022-11-20 10:32:51,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 386 transitions. [2022-11-20 10:32:51,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:51,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 386 transitions. [2022-11-20 10:32:51,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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) [2022-11-20 10:32:51,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 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) [2022-11-20 10:32:51,278 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 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) [2022-11-20 10:32:51,280 INFO L175 Difference]: Start difference. First operand has 142 places, 134 transitions, 277 flow. Second operand 3 states and 386 transitions. [2022-11-20 10:32:51,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 141 transitions, 353 flow [2022-11-20 10:32:51,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 141 transitions, 348 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 10:32:51,288 INFO L231 Difference]: Finished difference. Result has 141 places, 134 transitions, 304 flow [2022-11-20 10:32:51,290 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=304, PETRI_PLACES=141, PETRI_TRANSITIONS=134} [2022-11-20 10:32:51,297 INFO L288 CegarLoopForPetriNet]: 142 programPoint places, -1 predicate places. [2022-11-20 10:32:51,297 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 134 transitions, 304 flow [2022-11-20 10:32:51,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2022-11-20 10:32:51,298 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:51,298 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:51,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:32:51,299 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:32:51,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:51,299 INFO L85 PathProgramCache]: Analyzing trace with hash 973205307, now seen corresponding path program 1 times [2022-11-20 10:32:51,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:51,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129374832] [2022-11-20 10:32:51,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:51,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:51,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:51,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:51,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129374832] [2022-11-20 10:32:51,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129374832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:51,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:51,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:32:51,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301398110] [2022-11-20 10:32:51,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:51,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:32:51,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:51,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:32:51,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:32:51,636 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 137 [2022-11-20 10:32:51,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 134 transitions, 304 flow. Second operand has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 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) [2022-11-20 10:32:51,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:51,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 137 [2022-11-20 10:32:51,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:52,001 INFO L130 PetriNetUnfolder]: 226/1114 cut-off events. [2022-11-20 10:32:52,002 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2022-11-20 10:32:52,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1745 conditions, 1114 events. 226/1114 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7673 event pairs, 121 based on Foata normal form. 0/963 useless extension candidates. Maximal degree in co-relation 1673. Up to 338 conditions per place. [2022-11-20 10:32:52,012 INFO L137 encePairwiseOnDemand]: 130/137 looper letters, 21 selfloop transitions, 4 changer transitions 0/138 dead transitions. [2022-11-20 10:32:52,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 138 transitions, 360 flow [2022-11-20 10:32:52,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:32:52,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 10:32:52,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 492 transitions. [2022-11-20 10:32:52,015 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8978102189781022 [2022-11-20 10:32:52,015 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 492 transitions. [2022-11-20 10:32:52,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 492 transitions. [2022-11-20 10:32:52,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:52,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 492 transitions. [2022-11-20 10:32:52,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2022-11-20 10:32:52,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 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) [2022-11-20 10:32:52,020 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 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) [2022-11-20 10:32:52,020 INFO L175 Difference]: Start difference. First operand has 141 places, 134 transitions, 304 flow. Second operand 4 states and 492 transitions. [2022-11-20 10:32:52,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 138 transitions, 360 flow [2022-11-20 10:32:52,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 138 transitions, 356 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:32:52,027 INFO L231 Difference]: Finished difference. Result has 140 places, 131 transitions, 296 flow [2022-11-20 10:32:52,028 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=296, PETRI_PLACES=140, PETRI_TRANSITIONS=131} [2022-11-20 10:32:52,029 INFO L288 CegarLoopForPetriNet]: 142 programPoint places, -2 predicate places. [2022-11-20 10:32:52,029 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 131 transitions, 296 flow [2022-11-20 10:32:52,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 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) [2022-11-20 10:32:52,029 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:52,030 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:52,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:32:52,030 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:32:52,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:52,031 INFO L85 PathProgramCache]: Analyzing trace with hash 973205306, now seen corresponding path program 1 times [2022-11-20 10:32:52,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:52,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153102012] [2022-11-20 10:32:52,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:52,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:52,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:52,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:52,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153102012] [2022-11-20 10:32:52,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153102012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:52,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:52,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:32:52,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311192218] [2022-11-20 10:32:52,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:52,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:32:52,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:52,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:32:52,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:32:52,213 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 137 [2022-11-20 10:32:52,214 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 131 transitions, 296 flow. Second operand has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 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) [2022-11-20 10:32:52,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:52,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 137 [2022-11-20 10:32:52,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:52,434 INFO L130 PetriNetUnfolder]: 133/644 cut-off events. [2022-11-20 10:32:52,434 INFO L131 PetriNetUnfolder]: For 135/135 co-relation queries the response was YES. [2022-11-20 10:32:52,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1035 conditions, 644 events. 133/644 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3454 event pairs, 24 based on Foata normal form. 0/597 useless extension candidates. Maximal degree in co-relation 962. Up to 103 conditions per place. [2022-11-20 10:32:52,440 INFO L137 encePairwiseOnDemand]: 130/137 looper letters, 24 selfloop transitions, 7 changer transitions 3/147 dead transitions. [2022-11-20 10:32:52,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 147 transitions, 408 flow [2022-11-20 10:32:52,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:32:52,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 10:32:52,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 501 transitions. [2022-11-20 10:32:52,442 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9142335766423357 [2022-11-20 10:32:52,443 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 501 transitions. [2022-11-20 10:32:52,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 501 transitions. [2022-11-20 10:32:52,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:52,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 501 transitions. [2022-11-20 10:32:52,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 125.25) internal successors, (501), 4 states have internal predecessors, (501), 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) [2022-11-20 10:32:52,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 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) [2022-11-20 10:32:52,447 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 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) [2022-11-20 10:32:52,447 INFO L175 Difference]: Start difference. First operand has 140 places, 131 transitions, 296 flow. Second operand 4 states and 501 transitions. [2022-11-20 10:32:52,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 147 transitions, 408 flow [2022-11-20 10:32:52,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 147 transitions, 403 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:32:52,455 INFO L231 Difference]: Finished difference. Result has 142 places, 131 transitions, 317 flow [2022-11-20 10:32:52,455 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=317, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2022-11-20 10:32:52,458 INFO L288 CegarLoopForPetriNet]: 142 programPoint places, 0 predicate places. [2022-11-20 10:32:52,458 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 317 flow [2022-11-20 10:32:52,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 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) [2022-11-20 10:32:52,459 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:52,459 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:52,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:32:52,460 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:32:52,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:52,463 INFO L85 PathProgramCache]: Analyzing trace with hash 69318999, now seen corresponding path program 1 times [2022-11-20 10:32:52,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:52,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865751682] [2022-11-20 10:32:52,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:52,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:52,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:52,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:52,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865751682] [2022-11-20 10:32:52,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865751682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:52,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:52,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:32:52,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850497020] [2022-11-20 10:32:52,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:52,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:32:52,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:52,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:32:52,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:32:52,736 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 137 [2022-11-20 10:32:52,737 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 131 transitions, 317 flow. Second operand has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 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) [2022-11-20 10:32:52,737 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:52,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 137 [2022-11-20 10:32:52,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:52,950 INFO L130 PetriNetUnfolder]: 113/482 cut-off events. [2022-11-20 10:32:52,951 INFO L131 PetriNetUnfolder]: For 216/216 co-relation queries the response was YES. [2022-11-20 10:32:52,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 934 conditions, 482 events. 113/482 cut-off events. For 216/216 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2296 event pairs, 15 based on Foata normal form. 12/471 useless extension candidates. Maximal degree in co-relation 860. Up to 89 conditions per place. [2022-11-20 10:32:52,953 INFO L137 encePairwiseOnDemand]: 130/137 looper letters, 0 selfloop transitions, 0 changer transitions 141/141 dead transitions. [2022-11-20 10:32:52,953 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 141 transitions, 387 flow [2022-11-20 10:32:52,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:32:52,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 10:32:52,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 611 transitions. [2022-11-20 10:32:52,957 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.891970802919708 [2022-11-20 10:32:52,960 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 611 transitions. [2022-11-20 10:32:52,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 611 transitions. [2022-11-20 10:32:52,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:52,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 611 transitions. [2022-11-20 10:32:52,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 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) [2022-11-20 10:32:52,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 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) [2022-11-20 10:32:52,965 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 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) [2022-11-20 10:32:52,966 INFO L175 Difference]: Start difference. First operand has 142 places, 131 transitions, 317 flow. Second operand 5 states and 611 transitions. [2022-11-20 10:32:52,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 141 transitions, 387 flow [2022-11-20 10:32:52,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 141 transitions, 363 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-11-20 10:32:52,973 INFO L231 Difference]: Finished difference. Result has 139 places, 0 transitions, 0 flow [2022-11-20 10:32:52,973 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=139, PETRI_TRANSITIONS=0} [2022-11-20 10:32:52,975 INFO L288 CegarLoopForPetriNet]: 142 programPoint places, -3 predicate places. [2022-11-20 10:32:52,975 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 0 transitions, 0 flow [2022-11-20 10:32:52,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 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) [2022-11-20 10:32:52,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-20 10:32:52,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-20 10:32:52,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-20 10:32:52,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-20 10:32:52,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-20 10:32:52,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-20 10:32:52,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-20 10:32:52,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-20 10:32:52,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-20 10:32:52,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-20 10:32:52,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-20 10:32:52,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-20 10:32:52,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-20 10:32:52,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-20 10:32:52,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-20 10:32:52,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:32:52,986 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-20 10:32:52,992 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 10:32:52,992 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:32:53,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:32:53 BasicIcfg [2022-11-20 10:32:53,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:32:53,003 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:32:53,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:32:53,004 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:32:53,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:32:49" (3/4) ... [2022-11-20 10:32:53,007 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 10:32:53,012 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-20 10:32:53,013 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-20 10:32:53,013 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-20 10:32:53,021 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2022-11-20 10:32:53,021 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-20 10:32:53,021 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 10:32:53,022 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:32:53,083 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1dd418-5e1d-47d8-8a7d-952747791f12/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:32:53,083 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:32:53,084 INFO L158 Benchmark]: Toolchain (without parser) took 5719.32ms. Allocated memory was 169.9MB in the beginning and 220.2MB in the end (delta: 50.3MB). Free memory was 136.2MB in the beginning and 166.7MB in the end (delta: -30.5MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2022-11-20 10:32:53,084 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 127.9MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:32:53,084 INFO L158 Benchmark]: CACSL2BoogieTranslator took 651.59ms. Allocated memory is still 169.9MB. Free memory was 136.2MB in the beginning and 112.1MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-20 10:32:53,085 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.27ms. Allocated memory is still 169.9MB. Free memory was 112.1MB in the beginning and 110.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:32:53,085 INFO L158 Benchmark]: Boogie Preprocessor took 58.25ms. Allocated memory is still 169.9MB. Free memory was 110.1MB in the beginning and 108.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:32:53,086 INFO L158 Benchmark]: RCFGBuilder took 1436.46ms. Allocated memory is still 169.9MB. Free memory was 108.0MB in the beginning and 126.9MB in the end (delta: -18.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2022-11-20 10:32:53,086 INFO L158 Benchmark]: TraceAbstraction took 3412.58ms. Allocated memory was 169.9MB in the beginning and 220.2MB in the end (delta: 50.3MB). Free memory was 126.9MB in the beginning and 170.9MB in the end (delta: -44.1MB). Peak memory consumption was 127.4MB. Max. memory is 16.1GB. [2022-11-20 10:32:53,086 INFO L158 Benchmark]: Witness Printer took 79.70ms. Allocated memory is still 220.2MB. Free memory was 170.9MB in the beginning and 166.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 10:32:53,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 127.9MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 651.59ms. Allocated memory is still 169.9MB. Free memory was 136.2MB in the beginning and 112.1MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.27ms. Allocated memory is still 169.9MB. Free memory was 112.1MB in the beginning and 110.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.25ms. Allocated memory is still 169.9MB. Free memory was 110.1MB in the beginning and 108.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1436.46ms. Allocated memory is still 169.9MB. Free memory was 108.0MB in the beginning and 126.9MB in the end (delta: -18.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3412.58ms. Allocated memory was 169.9MB in the beginning and 220.2MB in the end (delta: 50.3MB). Free memory was 126.9MB in the beginning and 170.9MB in the end (delta: -44.1MB). Peak memory consumption was 127.4MB. Max. memory is 16.1GB. * Witness Printer took 79.70ms. Allocated memory is still 220.2MB. Free memory was 170.9MB in the beginning and 166.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: 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, 167 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: 3.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 146 IncrementalHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 10 mSDtfsCounter, 146 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=317occurred in iteration=3, 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, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 313 NumberOfCodeBlocks, 313 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 309 ConstructedInterpolants, 0 QuantifiedInterpolants, 863 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! [2022-11-20 10:32:53,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1dd418-5e1d-47d8-8a7d-952747791f12/bin/uautomizer-ug76WZFUDN/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