./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521cb676-7b4b-4151-b8d3-54ece9bd03c5/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521cb676-7b4b-4151-b8d3-54ece9bd03c5/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521cb676-7b4b-4151-b8d3-54ece9bd03c5/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521cb676-7b4b-4151-b8d3-54ece9bd03c5/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521cb676-7b4b-4151-b8d3-54ece9bd03c5/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521cb676-7b4b-4151-b8d3-54ece9bd03c5/bin/uautomizer-vX5HgA9Q3a --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 1821be0ec0c098ba0cd2fb39edc7421f58889218b21285544a5e01e847e429e6 --- 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-b5237d8 [2022-11-21 17:12:21,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:12:21,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:12:21,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:12:21,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:12:21,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:12:21,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:12:21,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:12:21,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:12:21,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:12:21,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:12:21,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:12:21,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:12:21,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:12:21,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:12:21,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:12:21,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:12:21,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:12:21,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:12:21,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:12:21,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:12:21,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:12:21,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:12:21,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:12:21,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:12:21,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:12:21,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:12:21,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:12:21,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:12:21,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:12:21,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:12:21,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:12:21,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:12:21,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:12:21,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:12:21,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:12:21,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:12:21,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:12:21,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:12:21,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:12:21,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:12:21,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521cb676-7b4b-4151-b8d3-54ece9bd03c5/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 17:12:21,573 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:12:21,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:12:21,574 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:12:21,574 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:12:21,575 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:12:21,575 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:12:21,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:12:21,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:12:21,576 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:12:21,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:12:21,578 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:12:21,578 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:12:21,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:12:21,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:12:21,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:12:21,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:12:21,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:12:21,580 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:12:21,580 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 17:12:21,580 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:12:21,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:12:21,581 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:12:21,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:12:21,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:12:21,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:12:21,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:12:21,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:12:21,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:12:21,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:12:21,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:12:21,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:12:21,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:12:21,585 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:12:21,585 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:12:21,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:12:21,585 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_521cb676-7b4b-4151-b8d3-54ece9bd03c5/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521cb676-7b4b-4151-b8d3-54ece9bd03c5/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1821be0ec0c098ba0cd2fb39edc7421f58889218b21285544a5e01e847e429e6 [2022-11-21 17:12:21,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:12:21,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:12:21,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:12:21,944 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:12:21,944 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:12:21,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521cb676-7b4b-4151-b8d3-54ece9bd03c5/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i [2022-11-21 17:12:24,923 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:12:25,229 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:12:25,230 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521cb676-7b4b-4151-b8d3-54ece9bd03c5/sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i [2022-11-21 17:12:25,243 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521cb676-7b4b-4151-b8d3-54ece9bd03c5/bin/uautomizer-vX5HgA9Q3a/data/5e1ca8833/31930bb368f0465ca88daf251188f8e5/FLAG916aa60c8 [2022-11-21 17:12:25,258 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521cb676-7b4b-4151-b8d3-54ece9bd03c5/bin/uautomizer-vX5HgA9Q3a/data/5e1ca8833/31930bb368f0465ca88daf251188f8e5 [2022-11-21 17:12:25,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:12:25,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:12:25,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:12:25,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:12:25,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:12:25,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:12:25" (1/1) ... [2022-11-21 17:12:25,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@451ecf57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:25, skipping insertion in model container [2022-11-21 17:12:25,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:12:25" (1/1) ... [2022-11-21 17:12:25,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:12:25,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:12:25,484 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_521cb676-7b4b-4151-b8d3-54ece9bd03c5/sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i[949,962] [2022-11-21 17:12:25,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:12:25,812 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:12:25,829 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_521cb676-7b4b-4151-b8d3-54ece9bd03c5/sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i[949,962] [2022-11-21 17:12:25,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:12:25,949 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:12:25,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:25 WrapperNode [2022-11-21 17:12:25,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:12:25,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:12:25,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:12:25,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:12:25,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:25" (1/1) ... [2022-11-21 17:12:25,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:25" (1/1) ... [2022-11-21 17:12:26,040 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 161 [2022-11-21 17:12:26,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:12:26,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:12:26,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:12:26,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:12:26,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:25" (1/1) ... [2022-11-21 17:12:26,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:25" (1/1) ... [2022-11-21 17:12:26,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:25" (1/1) ... [2022-11-21 17:12:26,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:25" (1/1) ... [2022-11-21 17:12:26,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:25" (1/1) ... [2022-11-21 17:12:26,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:25" (1/1) ... [2022-11-21 17:12:26,102 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:25" (1/1) ... [2022-11-21 17:12:26,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:25" (1/1) ... [2022-11-21 17:12:26,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:12:26,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:12:26,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:12:26,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:12:26,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:25" (1/1) ... [2022-11-21 17:12:26,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:12:26,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521cb676-7b4b-4151-b8d3-54ece9bd03c5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:12:26,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521cb676-7b4b-4151-b8d3-54ece9bd03c5/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:12:26,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521cb676-7b4b-4151-b8d3-54ece9bd03c5/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:12:26,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:12:26,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 17:12:26,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:12:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:12:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:12:26,188 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 17:12:26,189 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 17:12:26,189 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 17:12:26,189 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 17:12:26,189 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 17:12:26,189 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 17:12:26,190 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-21 17:12:26,190 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-21 17:12:26,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:12:26,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 17:12:26,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:12:26,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:12:26,192 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 17:12:26,425 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:12:26,427 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:12:26,787 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:12:26,979 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:12:26,979 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:12:26,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:12:26 BoogieIcfgContainer [2022-11-21 17:12:26,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:12:26,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:12:26,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:12:26,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:12:26,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:12:25" (1/3) ... [2022-11-21 17:12:26,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df71405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:12:26, skipping insertion in model container [2022-11-21 17:12:26,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:25" (2/3) ... [2022-11-21 17:12:26,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df71405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:12:26, skipping insertion in model container [2022-11-21 17:12:26,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:12:26" (3/3) ... [2022-11-21 17:12:26,998 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021_tso.oepc.i [2022-11-21 17:12:27,007 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 17:12:27,019 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:12:27,019 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-21 17:12:27,019 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 17:12:27,092 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 17:12:27,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 142 transitions, 304 flow [2022-11-21 17:12:27,254 INFO L130 PetriNetUnfolder]: 2/138 cut-off events. [2022-11-21 17:12:27,254 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:12:27,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 138 events. 2/138 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2022-11-21 17:12:27,261 INFO L82 GeneralOperation]: Start removeDead. Operand has 153 places, 142 transitions, 304 flow [2022-11-21 17:12:27,271 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 138 transitions, 288 flow [2022-11-21 17:12:27,282 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:12:27,288 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;@2d04ebc1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:12:27,288 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-21 17:12:27,299 INFO L130 PetriNetUnfolder]: 0/54 cut-off events. [2022-11-21 17:12:27,299 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:12:27,299 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:27,300 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] [2022-11-21 17:12:27,300 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 17:12:27,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:27,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1237997661, now seen corresponding path program 1 times [2022-11-21 17:12:27,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:27,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746280302] [2022-11-21 17:12:27,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:27,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:27,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:27,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:27,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746280302] [2022-11-21 17:12:27,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746280302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:27,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:27,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:12:27,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656790568] [2022-11-21 17:12:27,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:27,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:12:27,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:27,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:12:27,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:12:27,824 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 142 [2022-11-21 17:12:27,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 138 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 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) [2022-11-21 17:12:27,832 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:27,832 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 142 [2022-11-21 17:12:27,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:30,630 INFO L130 PetriNetUnfolder]: 3757/12531 cut-off events. [2022-11-21 17:12:30,631 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2022-11-21 17:12:30,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18019 conditions, 12531 events. 3757/12531 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 497. Compared 144763 event pairs, 2797 based on Foata normal form. 491/10330 useless extension candidates. Maximal degree in co-relation 17962. Up to 5190 conditions per place. [2022-11-21 17:12:30,757 INFO L137 encePairwiseOnDemand]: 127/142 looper letters, 33 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2022-11-21 17:12:30,757 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 149 transitions, 395 flow [2022-11-21 17:12:30,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:12:30,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:12:30,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2022-11-21 17:12:30,771 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9272300469483568 [2022-11-21 17:12:30,772 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2022-11-21 17:12:30,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2022-11-21 17:12:30,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:30,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2022-11-21 17:12:30,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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) [2022-11-21 17:12:30,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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) [2022-11-21 17:12:30,788 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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) [2022-11-21 17:12:30,790 INFO L175 Difference]: Start difference. First operand has 149 places, 138 transitions, 288 flow. Second operand 3 states and 395 transitions. [2022-11-21 17:12:30,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 149 transitions, 395 flow [2022-11-21 17:12:30,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 149 transitions, 388 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 17:12:30,798 INFO L231 Difference]: Finished difference. Result has 147 places, 139 transitions, 325 flow [2022-11-21 17:12:30,800 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=147, PETRI_TRANSITIONS=139} [2022-11-21 17:12:30,804 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, -2 predicate places. [2022-11-21 17:12:30,804 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 139 transitions, 325 flow [2022-11-21 17:12:30,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 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) [2022-11-21 17:12:30,805 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:30,805 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] [2022-11-21 17:12:30,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:12:30,806 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 17:12:30,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:30,807 INFO L85 PathProgramCache]: Analyzing trace with hash 308258808, now seen corresponding path program 1 times [2022-11-21 17:12:30,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:30,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064929218] [2022-11-21 17:12:30,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:30,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:31,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:31,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:31,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064929218] [2022-11-21 17:12:31,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064929218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:31,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:31,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:12:31,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377557703] [2022-11-21 17:12:31,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:31,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:12:31,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:31,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:12:31,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:12:31,048 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 142 [2022-11-21 17:12:31,049 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 139 transitions, 325 flow. Second operand has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 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) [2022-11-21 17:12:31,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:31,049 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 142 [2022-11-21 17:12:31,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:32,250 INFO L130 PetriNetUnfolder]: 1798/6409 cut-off events. [2022-11-21 17:12:32,251 INFO L131 PetriNetUnfolder]: For 403/403 co-relation queries the response was YES. [2022-11-21 17:12:32,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10559 conditions, 6409 events. 1798/6409 cut-off events. For 403/403 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 66197 event pairs, 1238 based on Foata normal form. 0/5445 useless extension candidates. Maximal degree in co-relation 10503. Up to 2436 conditions per place. [2022-11-21 17:12:32,307 INFO L137 encePairwiseOnDemand]: 133/142 looper letters, 29 selfloop transitions, 5 changer transitions 0/145 dead transitions. [2022-11-21 17:12:32,308 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 145 transitions, 403 flow [2022-11-21 17:12:32,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:12:32,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 17:12:32,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 498 transitions. [2022-11-21 17:12:32,311 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8767605633802817 [2022-11-21 17:12:32,311 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 498 transitions. [2022-11-21 17:12:32,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 498 transitions. [2022-11-21 17:12:32,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:32,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 498 transitions. [2022-11-21 17:12:32,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 124.5) internal successors, (498), 4 states have internal predecessors, (498), 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) [2022-11-21 17:12:32,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 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) [2022-11-21 17:12:32,317 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 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) [2022-11-21 17:12:32,317 INFO L175 Difference]: Start difference. First operand has 147 places, 139 transitions, 325 flow. Second operand 4 states and 498 transitions. [2022-11-21 17:12:32,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 145 transitions, 403 flow [2022-11-21 17:12:32,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 145 transitions, 398 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 17:12:32,322 INFO L231 Difference]: Finished difference. Result has 145 places, 135 transitions, 314 flow [2022-11-21 17:12:32,323 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=314, PETRI_PLACES=145, PETRI_TRANSITIONS=135} [2022-11-21 17:12:32,324 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, -4 predicate places. [2022-11-21 17:12:32,324 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 135 transitions, 314 flow [2022-11-21 17:12:32,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 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) [2022-11-21 17:12:32,325 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:32,325 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] [2022-11-21 17:12:32,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:12:32,325 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 17:12:32,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:32,326 INFO L85 PathProgramCache]: Analyzing trace with hash 308258807, now seen corresponding path program 1 times [2022-11-21 17:12:32,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:32,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994621108] [2022-11-21 17:12:32,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:32,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:32,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:32,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:32,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994621108] [2022-11-21 17:12:32,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994621108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:32,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:32,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:12:32,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009058004] [2022-11-21 17:12:32,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:32,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:12:32,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:32,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:12:32,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:12:32,473 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 142 [2022-11-21 17:12:32,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 135 transitions, 314 flow. Second operand has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 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) [2022-11-21 17:12:32,475 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:32,475 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 142 [2022-11-21 17:12:32,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:33,096 INFO L130 PetriNetUnfolder]: 952/2710 cut-off events. [2022-11-21 17:12:33,096 INFO L131 PetriNetUnfolder]: For 472/472 co-relation queries the response was YES. [2022-11-21 17:12:33,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4978 conditions, 2710 events. 952/2710 cut-off events. For 472/472 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 21907 event pairs, 229 based on Foata normal form. 0/2406 useless extension candidates. Maximal degree in co-relation 4921. Up to 889 conditions per place. [2022-11-21 17:12:33,117 INFO L137 encePairwiseOnDemand]: 133/142 looper letters, 38 selfloop transitions, 9 changer transitions 0/158 dead transitions. [2022-11-21 17:12:33,117 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 158 transitions, 472 flow [2022-11-21 17:12:33,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:12:33,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 17:12:33,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 511 transitions. [2022-11-21 17:12:33,120 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8996478873239436 [2022-11-21 17:12:33,120 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 511 transitions. [2022-11-21 17:12:33,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 511 transitions. [2022-11-21 17:12:33,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:33,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 511 transitions. [2022-11-21 17:12:33,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 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) [2022-11-21 17:12:33,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 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) [2022-11-21 17:12:33,125 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 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) [2022-11-21 17:12:33,125 INFO L175 Difference]: Start difference. First operand has 145 places, 135 transitions, 314 flow. Second operand 4 states and 511 transitions. [2022-11-21 17:12:33,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 158 transitions, 472 flow [2022-11-21 17:12:33,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 158 transitions, 466 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 17:12:33,129 INFO L231 Difference]: Finished difference. Result has 147 places, 139 transitions, 366 flow [2022-11-21 17:12:33,130 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=366, PETRI_PLACES=147, PETRI_TRANSITIONS=139} [2022-11-21 17:12:33,130 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, -2 predicate places. [2022-11-21 17:12:33,131 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 139 transitions, 366 flow [2022-11-21 17:12:33,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 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) [2022-11-21 17:12:33,131 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:33,132 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] [2022-11-21 17:12:33,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:12:33,132 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 17:12:33,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:33,133 INFO L85 PathProgramCache]: Analyzing trace with hash 204551685, now seen corresponding path program 1 times [2022-11-21 17:12:33,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:33,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898980169] [2022-11-21 17:12:33,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:33,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:33,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:33,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:33,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898980169] [2022-11-21 17:12:33,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898980169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:33,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:33,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:12:33,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54070609] [2022-11-21 17:12:33,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:33,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:12:33,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:33,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:12:33,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:12:33,366 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 142 [2022-11-21 17:12:33,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 139 transitions, 366 flow. Second operand has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:33,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:33,368 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 142 [2022-11-21 17:12:33,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:33,965 INFO L130 PetriNetUnfolder]: 739/2350 cut-off events. [2022-11-21 17:12:33,965 INFO L131 PetriNetUnfolder]: For 1109/1109 co-relation queries the response was YES. [2022-11-21 17:12:33,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4736 conditions, 2350 events. 739/2350 cut-off events. For 1109/1109 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 18760 event pairs, 185 based on Foata normal form. 0/2225 useless extension candidates. Maximal degree in co-relation 4678. Up to 457 conditions per place. [2022-11-21 17:12:33,980 INFO L137 encePairwiseOnDemand]: 133/142 looper letters, 42 selfloop transitions, 13 changer transitions 4/170 dead transitions. [2022-11-21 17:12:33,981 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 170 transitions, 574 flow [2022-11-21 17:12:33,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:12:33,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 17:12:33,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 638 transitions. [2022-11-21 17:12:33,983 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8985915492957747 [2022-11-21 17:12:33,983 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 638 transitions. [2022-11-21 17:12:33,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 638 transitions. [2022-11-21 17:12:33,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:33,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 638 transitions. [2022-11-21 17:12:33,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.6) internal successors, (638), 5 states have internal predecessors, (638), 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) [2022-11-21 17:12:33,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 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) [2022-11-21 17:12:33,988 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 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) [2022-11-21 17:12:33,988 INFO L175 Difference]: Start difference. First operand has 147 places, 139 transitions, 366 flow. Second operand 5 states and 638 transitions. [2022-11-21 17:12:33,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 170 transitions, 574 flow [2022-11-21 17:12:33,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 170 transitions, 556 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-11-21 17:12:33,993 INFO L231 Difference]: Finished difference. Result has 150 places, 139 transitions, 390 flow [2022-11-21 17:12:33,994 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=390, PETRI_PLACES=150, PETRI_TRANSITIONS=139} [2022-11-21 17:12:33,994 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, 1 predicate places. [2022-11-21 17:12:33,994 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 139 transitions, 390 flow [2022-11-21 17:12:33,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:33,995 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:33,995 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] [2022-11-21 17:12:33,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:12:33,996 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 17:12:33,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:33,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1941537884, now seen corresponding path program 1 times [2022-11-21 17:12:33,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:33,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175459081] [2022-11-21 17:12:33,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:33,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:34,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:34,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:34,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175459081] [2022-11-21 17:12:34,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175459081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:34,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:34,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:12:34,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96328916] [2022-11-21 17:12:34,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:34,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:12:34,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:34,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:12:34,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:12:34,248 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 142 [2022-11-21 17:12:34,249 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 139 transitions, 390 flow. Second operand has 6 states, 6 states have (on average 117.16666666666667) internal successors, (703), 6 states have internal predecessors, (703), 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) [2022-11-21 17:12:34,250 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:34,250 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 142 [2022-11-21 17:12:34,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:34,749 INFO L130 PetriNetUnfolder]: 712/2640 cut-off events. [2022-11-21 17:12:34,749 INFO L131 PetriNetUnfolder]: For 1920/1920 co-relation queries the response was YES. [2022-11-21 17:12:34,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5043 conditions, 2640 events. 712/2640 cut-off events. For 1920/1920 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 22265 event pairs, 185 based on Foata normal form. 16/2529 useless extension candidates. Maximal degree in co-relation 4984. Up to 389 conditions per place. [2022-11-21 17:12:34,759 INFO L137 encePairwiseOnDemand]: 133/142 looper letters, 0 selfloop transitions, 0 changer transitions 162/162 dead transitions. [2022-11-21 17:12:34,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 162 transitions, 526 flow [2022-11-21 17:12:34,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:12:34,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 17:12:34,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 745 transitions. [2022-11-21 17:12:34,762 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8744131455399061 [2022-11-21 17:12:34,762 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 745 transitions. [2022-11-21 17:12:34,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 745 transitions. [2022-11-21 17:12:34,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:34,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 745 transitions. [2022-11-21 17:12:34,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 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) [2022-11-21 17:12:34,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 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) [2022-11-21 17:12:34,768 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 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) [2022-11-21 17:12:34,769 INFO L175 Difference]: Start difference. First operand has 150 places, 139 transitions, 390 flow. Second operand 6 states and 745 transitions. [2022-11-21 17:12:34,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 162 transitions, 526 flow [2022-11-21 17:12:34,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 162 transitions, 471 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-21 17:12:34,783 INFO L231 Difference]: Finished difference. Result has 145 places, 0 transitions, 0 flow [2022-11-21 17:12:34,784 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=145, PETRI_TRANSITIONS=0} [2022-11-21 17:12:34,786 INFO L288 CegarLoopForPetriNet]: 149 programPoint places, -4 predicate places. [2022-11-21 17:12:34,787 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 0 transitions, 0 flow [2022-11-21 17:12:34,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.16666666666667) internal successors, (703), 6 states have internal predecessors, (703), 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) [2022-11-21 17:12:34,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-21 17:12:34,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-21 17:12:34,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-21 17:12:34,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-21 17:12:34,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-21 17:12:34,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-21 17:12:34,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-21 17:12:34,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-21 17:12:34,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-21 17:12:34,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-21 17:12:34,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-21 17:12:34,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-21 17:12:34,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-21 17:12:34,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-21 17:12:34,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-21 17:12:34,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-21 17:12:34,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-21 17:12:34,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-21 17:12:34,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-21 17:12:34,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-21 17:12:34,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:12:34,794 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-21 17:12:34,800 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 17:12:34,800 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:12:34,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:12:34 BasicIcfg [2022-11-21 17:12:34,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:12:34,806 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:12:34,806 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:12:34,806 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:12:34,807 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:12:26" (3/4) ... [2022-11-21 17:12:34,809 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 17:12:34,815 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 17:12:34,815 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 17:12:34,815 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-21 17:12:34,815 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-21 17:12:34,821 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2022-11-21 17:12:34,821 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-21 17:12:34,821 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 17:12:34,822 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 17:12:34,872 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521cb676-7b4b-4151-b8d3-54ece9bd03c5/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:12:34,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:12:34,881 INFO L158 Benchmark]: Toolchain (without parser) took 9618.07ms. Allocated memory was 178.3MB in the beginning and 629.1MB in the end (delta: 450.9MB). Free memory was 145.0MB in the beginning and 197.4MB in the end (delta: -52.5MB). Peak memory consumption was 400.9MB. Max. memory is 16.1GB. [2022-11-21 17:12:34,881 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 138.4MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:12:34,881 INFO L158 Benchmark]: CACSL2BoogieTranslator took 686.33ms. Allocated memory is still 178.3MB. Free memory was 144.3MB in the beginning and 120.6MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-21 17:12:34,882 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.41ms. Allocated memory is still 178.3MB. Free memory was 120.6MB in the beginning and 117.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:12:34,882 INFO L158 Benchmark]: Boogie Preprocessor took 59.15ms. Allocated memory is still 178.3MB. Free memory was 117.8MB in the beginning and 115.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:12:34,883 INFO L158 Benchmark]: RCFGBuilder took 873.49ms. Allocated memory is still 178.3MB. Free memory was 115.7MB in the beginning and 144.2MB in the end (delta: -28.5MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2022-11-21 17:12:34,883 INFO L158 Benchmark]: TraceAbstraction took 7821.54ms. Allocated memory was 178.3MB in the beginning and 629.1MB in the end (delta: 450.9MB). Free memory was 143.2MB in the beginning and 201.6MB in the end (delta: -58.4MB). Peak memory consumption was 393.5MB. Max. memory is 16.1GB. [2022-11-21 17:12:34,883 INFO L158 Benchmark]: Witness Printer took 74.18ms. Allocated memory is still 629.1MB. Free memory was 201.6MB in the beginning and 197.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 17:12:34,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 138.4MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 686.33ms. Allocated memory is still 178.3MB. Free memory was 144.3MB in the beginning and 120.6MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.41ms. Allocated memory is still 178.3MB. Free memory was 120.6MB in the beginning and 117.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.15ms. Allocated memory is still 178.3MB. Free memory was 117.8MB in the beginning and 115.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 873.49ms. Allocated memory is still 178.3MB. Free memory was 115.7MB in the beginning and 144.2MB in the end (delta: -28.5MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. * TraceAbstraction took 7821.54ms. Allocated memory was 178.3MB in the beginning and 629.1MB in the end (delta: 450.9MB). Free memory was 143.2MB in the beginning and 201.6MB in the end (delta: -58.4MB). Peak memory consumption was 393.5MB. Max. memory is 16.1GB. * Witness Printer took 74.18ms. Allocated memory is still 629.1MB. Free memory was 201.6MB in the beginning and 197.4MB 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: 758]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 758]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 778]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 778]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 808]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 808]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 185 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 139 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 139 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 282 IncrementalHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 17 mSDtfsCounter, 282 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=390occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 340 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 335 ConstructedInterpolants, 0 QuantifiedInterpolants, 925 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 17:12:34,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521cb676-7b4b-4151-b8d3-54ece9bd03c5/bin/uautomizer-vX5HgA9Q3a/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