./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/bin/uautomizer-tPACEb0tL8 --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 4c09a669e55905e4420a018d9d131490861f4e5b62b0d12706f3ee95b5f0c90f --- 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-e04fb08 [2022-11-16 12:19:15,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:19:15,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:19:15,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:19:15,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:19:15,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:19:15,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:19:15,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:19:15,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:19:15,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:19:15,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:19:15,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:19:15,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:19:15,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:19:15,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:19:15,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:19:15,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:19:15,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:19:15,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:19:15,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:19:15,546 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:19:15,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:19:15,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:19:15,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:19:15,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:19:15,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:19:15,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:19:15,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:19:15,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:19:15,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:19:15,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:19:15,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:19:15,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:19:15,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:19:15,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:19:15,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:19:15,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:19:15,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:19:15,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:19:15,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:19:15,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:19:15,589 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 12:19:15,635 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:19:15,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:19:15,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:19:15,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:19:15,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:19:15,641 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:19:15,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:19:15,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:19:15,642 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:19:15,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:19:15,643 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:19:15,644 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:19:15,644 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:19:15,644 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:19:15,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:19:15,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:19:15,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:19:15,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:19:15,645 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 12:19:15,646 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:19:15,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:19:15,646 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:19:15,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:19:15,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:19:15,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:19:15,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:19:15,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:19:15,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:19:15,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:19:15,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:19:15,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:19:15,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:19:15,651 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:19:15,652 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:19:15,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:19:15,652 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_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c09a669e55905e4420a018d9d131490861f4e5b62b0d12706f3ee95b5f0c90f [2022-11-16 12:19:15,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:19:16,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:19:16,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:19:16,028 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:19:16,029 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:19:16,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-11-16 12:19:16,096 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/bin/uautomizer-tPACEb0tL8/data/ae755fd25/6d078f8d1af04045bc3a3ed38e0ef209/FLAGc4f00ee81 [2022-11-16 12:19:16,656 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:19:16,658 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/sv-benchmarks/c/pthread-wmm/rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-11-16 12:19:16,674 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/bin/uautomizer-tPACEb0tL8/data/ae755fd25/6d078f8d1af04045bc3a3ed38e0ef209/FLAGc4f00ee81 [2022-11-16 12:19:16,925 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/bin/uautomizer-tPACEb0tL8/data/ae755fd25/6d078f8d1af04045bc3a3ed38e0ef209 [2022-11-16 12:19:16,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:19:16,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:19:16,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:19:16,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:19:16,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:19:16,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:19:16" (1/1) ... [2022-11-16 12:19:16,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@564d8184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:16, skipping insertion in model container [2022-11-16 12:19:16,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:19:16" (1/1) ... [2022-11-16 12:19:16,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:19:16,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:19:17,189 WARN L229 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_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/sv-benchmarks/c/pthread-wmm/rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2022-11-16 12:19:17,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:19:17,392 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:19:17,408 WARN L229 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_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/sv-benchmarks/c/pthread-wmm/rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2022-11-16 12:19:17,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:19:17,532 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:19:17,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:17 WrapperNode [2022-11-16 12:19:17,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:19:17,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:19:17,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:19:17,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:19:17,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:17" (1/1) ... [2022-11-16 12:19:17,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:17" (1/1) ... [2022-11-16 12:19:17,628 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 137 [2022-11-16 12:19:17,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:19:17,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:19:17,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:19:17,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:19:17,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:17" (1/1) ... [2022-11-16 12:19:17,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:17" (1/1) ... [2022-11-16 12:19:17,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:17" (1/1) ... [2022-11-16 12:19:17,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:17" (1/1) ... [2022-11-16 12:19:17,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:17" (1/1) ... [2022-11-16 12:19:17,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:17" (1/1) ... [2022-11-16 12:19:17,687 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:17" (1/1) ... [2022-11-16 12:19:17,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:17" (1/1) ... [2022-11-16 12:19:17,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:19:17,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:19:17,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:19:17,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:19:17,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:17" (1/1) ... [2022-11-16 12:19:17,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:19:17,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:19:17,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:19:17,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:19:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:19:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:19:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:19:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:19:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:19:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 12:19:17,800 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 12:19:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 12:19:17,800 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 12:19:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:19:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:19:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:19:17,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:19:17,802 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:19:18,020 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:19:18,022 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:19:18,353 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:19:18,554 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:19:18,555 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:19:18,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:19:18 BoogieIcfgContainer [2022-11-16 12:19:18,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:19:18,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:19:18,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:19:18,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:19:18,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:19:16" (1/3) ... [2022-11-16 12:19:18,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64207d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:19:18, skipping insertion in model container [2022-11-16 12:19:18,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:17" (2/3) ... [2022-11-16 12:19:18,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64207d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:19:18, skipping insertion in model container [2022-11-16 12:19:18,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:19:18" (3/3) ... [2022-11-16 12:19:18,573 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-11-16 12:19:18,583 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:19:18,596 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:19:18,596 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-16 12:19:18,597 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:19:18,653 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:19:18,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 100 transitions, 210 flow [2022-11-16 12:19:18,762 INFO L130 PetriNetUnfolder]: 2/98 cut-off events. [2022-11-16 12:19:18,763 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:19:18,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 98 events. 2/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2022-11-16 12:19:18,771 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 100 transitions, 210 flow [2022-11-16 12:19:18,779 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 98 transitions, 202 flow [2022-11-16 12:19:18,807 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:19:18,815 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;@1d0e80d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:19:18,815 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-16 12:19:18,833 INFO L130 PetriNetUnfolder]: 0/50 cut-off events. [2022-11-16 12:19:18,834 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:19:18,834 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:18,835 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] [2022-11-16 12:19:18,835 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 12:19:18,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:18,841 INFO L85 PathProgramCache]: Analyzing trace with hash -799675443, now seen corresponding path program 1 times [2022-11-16 12:19:18,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:18,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297013676] [2022-11-16 12:19:18,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:18,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:19,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:19,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:19,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297013676] [2022-11-16 12:19:19,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297013676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:19,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:19,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:19,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725437319] [2022-11-16 12:19:19,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:19,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:19,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:19,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:19,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:19,369 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 100 [2022-11-16 12:19:19,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 98 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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) [2022-11-16 12:19:19,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:19,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 100 [2022-11-16 12:19:19,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:19,597 INFO L130 PetriNetUnfolder]: 71/352 cut-off events. [2022-11-16 12:19:19,598 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-16 12:19:19,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 503 conditions, 352 events. 71/352 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1682 event pairs, 24 based on Foata normal form. 24/345 useless extension candidates. Maximal degree in co-relation 454. Up to 89 conditions per place. [2022-11-16 12:19:19,604 INFO L137 encePairwiseOnDemand]: 91/100 looper letters, 19 selfloop transitions, 3 changer transitions 2/104 dead transitions. [2022-11-16 12:19:19,604 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 104 transitions, 265 flow [2022-11-16 12:19:19,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:19,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:19:19,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2022-11-16 12:19:19,629 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9266666666666666 [2022-11-16 12:19:19,629 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 278 transitions. [2022-11-16 12:19:19,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 278 transitions. [2022-11-16 12:19:19,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:19,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 278 transitions. [2022-11-16 12:19:19,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2022-11-16 12:19:19,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 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) [2022-11-16 12:19:19,656 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 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) [2022-11-16 12:19:19,658 INFO L175 Difference]: Start difference. First operand has 103 places, 98 transitions, 202 flow. Second operand 3 states and 278 transitions. [2022-11-16 12:19:19,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 104 transitions, 265 flow [2022-11-16 12:19:19,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 104 transitions, 262 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:19:19,672 INFO L231 Difference]: Finished difference. Result has 103 places, 95 transitions, 211 flow [2022-11-16 12:19:19,674 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=103, PETRI_TRANSITIONS=95} [2022-11-16 12:19:19,681 INFO L288 CegarLoopForPetriNet]: 103 programPoint places, 0 predicate places. [2022-11-16 12:19:19,681 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 95 transitions, 211 flow [2022-11-16 12:19:19,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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) [2022-11-16 12:19:19,682 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:19,683 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] [2022-11-16 12:19:19,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:19:19,684 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 12:19:19,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:19,686 INFO L85 PathProgramCache]: Analyzing trace with hash 13874410, now seen corresponding path program 1 times [2022-11-16 12:19:19,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:19,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121548359] [2022-11-16 12:19:19,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:19,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:19,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:19,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:19,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121548359] [2022-11-16 12:19:19,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121548359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:19,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:19,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:19:19,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729388615] [2022-11-16 12:19:19,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:19,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:19:19,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:20,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:19:20,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:19:20,003 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 100 [2022-11-16 12:19:20,004 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 95 transitions, 211 flow. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2022-11-16 12:19:20,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:20,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 100 [2022-11-16 12:19:20,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:20,169 INFO L130 PetriNetUnfolder]: 58/319 cut-off events. [2022-11-16 12:19:20,170 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-16 12:19:20,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 319 events. 58/319 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1434 event pairs, 24 based on Foata normal form. 0/304 useless extension candidates. Maximal degree in co-relation 446. Up to 63 conditions per place. [2022-11-16 12:19:20,176 INFO L137 encePairwiseOnDemand]: 95/100 looper letters, 17 selfloop transitions, 3 changer transitions 0/100 dead transitions. [2022-11-16 12:19:20,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 100 transitions, 259 flow [2022-11-16 12:19:20,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:19:20,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 12:19:20,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 350 transitions. [2022-11-16 12:19:20,180 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.875 [2022-11-16 12:19:20,180 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 350 transitions. [2022-11-16 12:19:20,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 350 transitions. [2022-11-16 12:19:20,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:20,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 350 transitions. [2022-11-16 12:19:20,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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) [2022-11-16 12:19:20,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 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) [2022-11-16 12:19:20,187 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 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) [2022-11-16 12:19:20,187 INFO L175 Difference]: Start difference. First operand has 103 places, 95 transitions, 211 flow. Second operand 4 states and 350 transitions. [2022-11-16 12:19:20,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 100 transitions, 259 flow [2022-11-16 12:19:20,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 100 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:19:20,192 INFO L231 Difference]: Finished difference. Result has 103 places, 93 transitions, 206 flow [2022-11-16 12:19:20,192 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=206, PETRI_PLACES=103, PETRI_TRANSITIONS=93} [2022-11-16 12:19:20,193 INFO L288 CegarLoopForPetriNet]: 103 programPoint places, 0 predicate places. [2022-11-16 12:19:20,193 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 93 transitions, 206 flow [2022-11-16 12:19:20,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2022-11-16 12:19:20,194 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:19:20,194 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] [2022-11-16 12:19:20,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:19:20,195 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 12:19:20,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:20,195 INFO L85 PathProgramCache]: Analyzing trace with hash 13874411, now seen corresponding path program 1 times [2022-11-16 12:19:20,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:20,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613674475] [2022-11-16 12:19:20,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:20,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:20,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:20,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:20,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613674475] [2022-11-16 12:19:20,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613674475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:20,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:20,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:19:20,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929426968] [2022-11-16 12:19:20,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:20,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:19:20,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:20,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:19:20,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:19:20,345 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 100 [2022-11-16 12:19:20,346 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 93 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2022-11-16 12:19:20,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:19:20,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 100 [2022-11-16 12:19:20,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:19:20,458 INFO L130 PetriNetUnfolder]: 52/305 cut-off events. [2022-11-16 12:19:20,458 INFO L131 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2022-11-16 12:19:20,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 305 events. 52/305 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1308 event pairs, 24 based on Foata normal form. 8/298 useless extension candidates. Maximal degree in co-relation 410. Up to 51 conditions per place. [2022-11-16 12:19:20,460 INFO L137 encePairwiseOnDemand]: 95/100 looper letters, 0 selfloop transitions, 0 changer transitions 98/98 dead transitions. [2022-11-16 12:19:20,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 98 transitions, 250 flow [2022-11-16 12:19:20,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:19:20,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 12:19:20,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 348 transitions. [2022-11-16 12:19:20,462 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.87 [2022-11-16 12:19:20,462 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 348 transitions. [2022-11-16 12:19:20,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 348 transitions. [2022-11-16 12:19:20,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:19:20,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 348 transitions. [2022-11-16 12:19:20,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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) [2022-11-16 12:19:20,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 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) [2022-11-16 12:19:20,466 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 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) [2022-11-16 12:19:20,466 INFO L175 Difference]: Start difference. First operand has 103 places, 93 transitions, 206 flow. Second operand 4 states and 348 transitions. [2022-11-16 12:19:20,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 98 transitions, 250 flow [2022-11-16 12:19:20,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 98 transitions, 243 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 12:19:20,469 INFO L231 Difference]: Finished difference. Result has 101 places, 0 transitions, 0 flow [2022-11-16 12:19:20,469 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=101, PETRI_TRANSITIONS=0} [2022-11-16 12:19:20,470 INFO L288 CegarLoopForPetriNet]: 103 programPoint places, -2 predicate places. [2022-11-16 12:19:20,470 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 0 transitions, 0 flow [2022-11-16 12:19:20,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2022-11-16 12:19:20,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-16 12:19:20,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-16 12:19:20,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-16 12:19:20,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-16 12:19:20,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-11-16 12:19:20,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-11-16 12:19:20,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-16 12:19:20,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-16 12:19:20,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-16 12:19:20,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-16 12:19:20,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:19:20,477 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-16 12:19:20,483 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:19:20,483 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:19:20,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:19:20 BasicIcfg [2022-11-16 12:19:20,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:19:20,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:19:20,490 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:19:20,490 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:19:20,491 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:19:18" (3/4) ... [2022-11-16 12:19:20,494 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:19:20,499 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-16 12:19:20,500 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-16 12:19:20,505 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-16 12:19:20,505 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-16 12:19:20,505 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 12:19:20,506 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:19:20,548 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:19:20,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:19:20,550 INFO L158 Benchmark]: Toolchain (without parser) took 3621.47ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 80.8MB in the beginning and 66.2MB in the end (delta: 14.5MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2022-11-16 12:19:20,550 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:19:20,551 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.98ms. Allocated memory is still 104.9MB. Free memory was 80.4MB in the beginning and 66.3MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 12:19:20,551 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.21ms. Allocated memory is still 104.9MB. Free memory was 66.3MB in the beginning and 63.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:19:20,551 INFO L158 Benchmark]: Boogie Preprocessor took 67.85ms. Allocated memory is still 104.9MB. Free memory was 63.9MB in the beginning and 62.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:19:20,552 INFO L158 Benchmark]: RCFGBuilder took 855.22ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 62.1MB in the beginning and 105.7MB in the end (delta: -43.7MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2022-11-16 12:19:20,552 INFO L158 Benchmark]: TraceAbstraction took 1929.60ms. Allocated memory is still 134.2MB. Free memory was 104.9MB in the beginning and 69.4MB in the end (delta: 35.6MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2022-11-16 12:19:20,553 INFO L158 Benchmark]: Witness Printer took 59.05ms. Allocated memory is still 134.2MB. Free memory was 69.4MB in the beginning and 66.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:19:20,555 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 603.98ms. Allocated memory is still 104.9MB. Free memory was 80.4MB in the beginning and 66.3MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.21ms. Allocated memory is still 104.9MB. Free memory was 66.3MB in the beginning and 63.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.85ms. Allocated memory is still 104.9MB. Free memory was 63.9MB in the beginning and 62.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 855.22ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 62.1MB in the beginning and 105.7MB in the end (delta: -43.7MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1929.60ms. Allocated memory is still 134.2MB. Free memory was 104.9MB in the beginning and 69.4MB in the end (delta: 35.6MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. * Witness Printer took 59.05ms. Allocated memory is still 134.2MB. Free memory was 69.4MB in the beginning and 66.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: 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: 787]: 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 5 procedures, 123 locations, 10 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: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 5 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=211occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.6s InterpolantComputationTime, 166 NumberOfCodeBlocks, 166 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 163 ConstructedInterpolants, 0 QuantifiedInterpolants, 381 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 12:19:20,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd8d6c2-5435-41f1-b0fd-b9a0d113ec49/bin/uautomizer-tPACEb0tL8/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