./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_5bab078d-81f9-47e8-937e-e9dc7f19d689/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bab078d-81f9-47e8-937e-e9dc7f19d689/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_5bab078d-81f9-47e8-937e-e9dc7f19d689/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bab078d-81f9-47e8-937e-e9dc7f19d689/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bab078d-81f9-47e8-937e-e9dc7f19d689/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_5bab078d-81f9-47e8-937e-e9dc7f19d689/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 773055aaa90ff8ec223993b190a157a4b1c15a4828ef014894ca730726d954aa --- 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 14:01:23,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 14:01:23,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 14:01:23,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 14:01:23,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 14:01:23,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 14:01:23,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 14:01:23,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 14:01:23,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 14:01:23,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 14:01:23,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 14:01:23,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 14:01:23,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 14:01:23,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 14:01:23,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 14:01:23,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 14:01:23,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 14:01:23,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 14:01:23,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 14:01:23,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 14:01:23,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 14:01:23,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 14:01:23,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 14:01:23,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 14:01:23,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 14:01:23,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 14:01:23,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 14:01:23,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 14:01:23,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 14:01:23,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 14:01:23,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 14:01:23,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 14:01:23,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 14:01:23,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 14:01:23,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 14:01:23,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 14:01:23,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 14:01:23,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 14:01:23,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 14:01:23,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 14:01:23,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 14:01:23,640 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bab078d-81f9-47e8-937e-e9dc7f19d689/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 14:01:23,687 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 14:01:23,687 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 14:01:23,688 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 14:01:23,688 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 14:01:23,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 14:01:23,689 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 14:01:23,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 14:01:23,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 14:01:23,691 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 14:01:23,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 14:01:23,692 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 14:01:23,692 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 14:01:23,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 14:01:23,693 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 14:01:23,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 14:01:23,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 14:01:23,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 14:01:23,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 14:01:23,694 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 14:01:23,694 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 14:01:23,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 14:01:23,695 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 14:01:23,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 14:01:23,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 14:01:23,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 14:01:23,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 14:01:23,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 14:01:23,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 14:01:23,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 14:01:23,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 14:01:23,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 14:01:23,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 14:01:23,698 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 14:01:23,698 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 14:01:23,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 14:01:23,699 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_5bab078d-81f9-47e8-937e-e9dc7f19d689/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bab078d-81f9-47e8-937e-e9dc7f19d689/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 773055aaa90ff8ec223993b190a157a4b1c15a4828ef014894ca730726d954aa [2022-11-21 14:01:24,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 14:01:24,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 14:01:24,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 14:01:24,069 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 14:01:24,069 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 14:01:24,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bab078d-81f9-47e8-937e-e9dc7f19d689/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i [2022-11-21 14:01:27,123 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 14:01:27,450 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 14:01:27,450 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bab078d-81f9-47e8-937e-e9dc7f19d689/sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i [2022-11-21 14:01:27,489 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bab078d-81f9-47e8-937e-e9dc7f19d689/bin/uautomizer-vX5HgA9Q3a/data/8be0212e9/615e69747b604af589634fbf1b72bfd8/FLAG2edbeb568 [2022-11-21 14:01:27,511 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bab078d-81f9-47e8-937e-e9dc7f19d689/bin/uautomizer-vX5HgA9Q3a/data/8be0212e9/615e69747b604af589634fbf1b72bfd8 [2022-11-21 14:01:27,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 14:01:27,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 14:01:27,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 14:01:27,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 14:01:27,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 14:01:27,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:01:27" (1/1) ... [2022-11-21 14:01:27,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17a4bd99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:27, skipping insertion in model container [2022-11-21 14:01:27,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:01:27" (1/1) ... [2022-11-21 14:01:27,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 14:01:27,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 14:01:27,803 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_5bab078d-81f9-47e8-937e-e9dc7f19d689/sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-21 14:01:28,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 14:01:28,107 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 14:01:28,120 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_5bab078d-81f9-47e8-937e-e9dc7f19d689/sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-21 14:01:28,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 14:01:28,221 INFO L208 MainTranslator]: Completed translation [2022-11-21 14:01:28,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:28 WrapperNode [2022-11-21 14:01:28,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 14:01:28,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 14:01:28,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 14:01:28,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 14:01:28,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:28" (1/1) ... [2022-11-21 14:01:28,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:28" (1/1) ... [2022-11-21 14:01:28,306 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 147 [2022-11-21 14:01:28,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 14:01:28,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 14:01:28,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 14:01:28,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 14:01:28,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:28" (1/1) ... [2022-11-21 14:01:28,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:28" (1/1) ... [2022-11-21 14:01:28,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:28" (1/1) ... [2022-11-21 14:01:28,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:28" (1/1) ... [2022-11-21 14:01:28,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:28" (1/1) ... [2022-11-21 14:01:28,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:28" (1/1) ... [2022-11-21 14:01:28,336 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:28" (1/1) ... [2022-11-21 14:01:28,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:28" (1/1) ... [2022-11-21 14:01:28,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 14:01:28,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 14:01:28,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 14:01:28,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 14:01:28,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:28" (1/1) ... [2022-11-21 14:01:28,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 14:01:28,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bab078d-81f9-47e8-937e-e9dc7f19d689/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 14:01:28,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bab078d-81f9-47e8-937e-e9dc7f19d689/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 14:01:28,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bab078d-81f9-47e8-937e-e9dc7f19d689/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 14:01:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 14:01:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 14:01:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 14:01:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 14:01:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 14:01:28,435 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 14:01:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 14:01:28,436 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 14:01:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 14:01:28,436 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 14:01:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 14:01:28,436 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-21 14:01:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-21 14:01:28,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 14:01:28,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 14:01:28,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 14:01:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 14:01:28,439 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 14:01:28,628 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 14:01:28,630 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 14:01:29,088 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 14:01:29,285 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 14:01:29,285 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 14:01:29,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:01:29 BoogieIcfgContainer [2022-11-21 14:01:29,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 14:01:29,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 14:01:29,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 14:01:29,295 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 14:01:29,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 02:01:27" (1/3) ... [2022-11-21 14:01:29,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4becaba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:01:29, skipping insertion in model container [2022-11-21 14:01:29,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:28" (2/3) ... [2022-11-21 14:01:29,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4becaba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:01:29, skipping insertion in model container [2022-11-21 14:01:29,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:01:29" (3/3) ... [2022-11-21 14:01:29,300 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008_power.oepc_pso.oepc_rmo.oepc.i [2022-11-21 14:01:29,310 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 14:01:29,323 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 14:01:29,324 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-21 14:01:29,324 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 14:01:29,424 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 14:01:29,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 145 transitions, 310 flow [2022-11-21 14:01:29,587 INFO L130 PetriNetUnfolder]: 2/141 cut-off events. [2022-11-21 14:01:29,587 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 14:01:29,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 141 events. 2/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-11-21 14:01:29,598 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 145 transitions, 310 flow [2022-11-21 14:01:29,603 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 152 places, 141 transitions, 294 flow [2022-11-21 14:01:29,624 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 14:01:29,632 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;@6f4b3059, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 14:01:29,633 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-21 14:01:29,670 INFO L130 PetriNetUnfolder]: 0/57 cut-off events. [2022-11-21 14:01:29,670 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 14:01:29,671 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:01:29,672 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] [2022-11-21 14:01:29,673 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 14:01:29,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:01:29,677 INFO L85 PathProgramCache]: Analyzing trace with hash 838563040, now seen corresponding path program 1 times [2022-11-21 14:01:29,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:01:29,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975731679] [2022-11-21 14:01:29,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:01:29,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:01:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,174 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 14:01:30,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:01:30,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975731679] [2022-11-21 14:01:30,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975731679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:01:30,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:01:30,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 14:01:30,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664423480] [2022-11-21 14:01:30,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:01:30,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 14:01:30,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:01:30,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 14:01:30,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 14:01:30,218 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2022-11-21 14:01:30,222 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 141 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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 14:01:30,222 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:01:30,222 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2022-11-21 14:01:30,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:01:32,109 INFO L130 PetriNetUnfolder]: 4102/7316 cut-off events. [2022-11-21 14:01:32,110 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2022-11-21 14:01:32,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13341 conditions, 7316 events. 4102/7316 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 479. Compared 57601 event pairs, 1225 based on Foata normal form. 200/5171 useless extension candidates. Maximal degree in co-relation 13283. Up to 5438 conditions per place. [2022-11-21 14:01:32,201 INFO L137 encePairwiseOnDemand]: 130/145 looper letters, 35 selfloop transitions, 5 changer transitions 0/153 dead transitions. [2022-11-21 14:01:32,201 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 153 transitions, 407 flow [2022-11-21 14:01:32,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 14:01:32,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 14:01:32,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2022-11-21 14:01:32,215 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9264367816091954 [2022-11-21 14:01:32,216 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 403 transitions. [2022-11-21 14:01:32,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 403 transitions. [2022-11-21 14:01:32,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:01:32,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 403 transitions. [2022-11-21 14:01:32,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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 14:01:32,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 14:01:32,231 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 14:01:32,233 INFO L175 Difference]: Start difference. First operand has 152 places, 141 transitions, 294 flow. Second operand 3 states and 403 transitions. [2022-11-21 14:01:32,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 153 transitions, 407 flow [2022-11-21 14:01:32,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 153 transitions, 400 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 14:01:32,242 INFO L231 Difference]: Finished difference. Result has 150 places, 142 transitions, 331 flow [2022-11-21 14:01:32,244 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=331, PETRI_PLACES=150, PETRI_TRANSITIONS=142} [2022-11-21 14:01:32,248 INFO L288 CegarLoopForPetriNet]: 152 programPoint places, -2 predicate places. [2022-11-21 14:01:32,248 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 142 transitions, 331 flow [2022-11-21 14:01:32,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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 14:01:32,249 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:01:32,249 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] [2022-11-21 14:01:32,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 14:01:32,250 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 14:01:32,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:01:32,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1584136486, now seen corresponding path program 1 times [2022-11-21 14:01:32,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:01:32,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689691881] [2022-11-21 14:01:32,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:01:32,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:01:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:32,479 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 14:01:32,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:01:32,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689691881] [2022-11-21 14:01:32,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689691881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:01:32,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:01:32,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 14:01:32,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11669379] [2022-11-21 14:01:32,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:01:32,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 14:01:32,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:01:32,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 14:01:32,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 14:01:32,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2022-11-21 14:01:32,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 142 transitions, 331 flow. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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 14:01:32,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:01:32,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2022-11-21 14:01:32,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:01:33,549 INFO L130 PetriNetUnfolder]: 2267/4525 cut-off events. [2022-11-21 14:01:33,550 INFO L131 PetriNetUnfolder]: For 116/116 co-relation queries the response was YES. [2022-11-21 14:01:33,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9504 conditions, 4525 events. 2267/4525 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 35327 event pairs, 553 based on Foata normal form. 0/3659 useless extension candidates. Maximal degree in co-relation 9447. Up to 2842 conditions per place. [2022-11-21 14:01:33,609 INFO L137 encePairwiseOnDemand]: 136/145 looper letters, 31 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2022-11-21 14:01:33,610 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 149 transitions, 415 flow [2022-11-21 14:01:33,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 14:01:33,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 14:01:33,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2022-11-21 14:01:33,616 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8758620689655172 [2022-11-21 14:01:33,616 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 508 transitions. [2022-11-21 14:01:33,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 508 transitions. [2022-11-21 14:01:33,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:01:33,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 508 transitions. [2022-11-21 14:01:33,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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 14:01:33,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 14:01:33,624 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 14:01:33,625 INFO L175 Difference]: Start difference. First operand has 150 places, 142 transitions, 331 flow. Second operand 4 states and 508 transitions. [2022-11-21 14:01:33,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 149 transitions, 415 flow [2022-11-21 14:01:33,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 149 transitions, 410 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 14:01:33,635 INFO L231 Difference]: Finished difference. Result has 148 places, 138 transitions, 320 flow [2022-11-21 14:01:33,635 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=320, PETRI_PLACES=148, PETRI_TRANSITIONS=138} [2022-11-21 14:01:33,637 INFO L288 CegarLoopForPetriNet]: 152 programPoint places, -4 predicate places. [2022-11-21 14:01:33,637 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 138 transitions, 320 flow [2022-11-21 14:01:33,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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 14:01:33,638 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:01:33,639 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] [2022-11-21 14:01:33,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 14:01:33,639 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 14:01:33,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:01:33,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1584136487, now seen corresponding path program 1 times [2022-11-21 14:01:33,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:01:33,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561298964] [2022-11-21 14:01:33,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:01:33,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:01:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:33,890 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 14:01:33,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:01:33,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561298964] [2022-11-21 14:01:33,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561298964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:01:33,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:01:33,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 14:01:33,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076558854] [2022-11-21 14:01:33,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:01:33,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 14:01:33,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:01:33,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 14:01:33,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 14:01:33,894 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2022-11-21 14:01:33,895 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 138 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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 14:01:33,895 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:01:33,895 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2022-11-21 14:01:33,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:01:34,653 INFO L130 PetriNetUnfolder]: 1367/3140 cut-off events. [2022-11-21 14:01:34,653 INFO L131 PetriNetUnfolder]: For 431/431 co-relation queries the response was YES. [2022-11-21 14:01:34,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6157 conditions, 3140 events. 1367/3140 cut-off events. For 431/431 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 24540 event pairs, 279 based on Foata normal form. 0/2835 useless extension candidates. Maximal degree in co-relation 6099. Up to 917 conditions per place. [2022-11-21 14:01:34,690 INFO L137 encePairwiseOnDemand]: 136/145 looper letters, 41 selfloop transitions, 9 changer transitions 0/163 dead transitions. [2022-11-21 14:01:34,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 163 transitions, 488 flow [2022-11-21 14:01:34,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 14:01:34,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 14:01:34,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 522 transitions. [2022-11-21 14:01:34,693 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9 [2022-11-21 14:01:34,693 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 522 transitions. [2022-11-21 14:01:34,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 522 transitions. [2022-11-21 14:01:34,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:01:34,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 522 transitions. [2022-11-21 14:01:34,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 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 14:01:34,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 14:01:34,697 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 14:01:34,697 INFO L175 Difference]: Start difference. First operand has 148 places, 138 transitions, 320 flow. Second operand 4 states and 522 transitions. [2022-11-21 14:01:34,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 163 transitions, 488 flow [2022-11-21 14:01:34,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 163 transitions, 482 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 14:01:34,703 INFO L231 Difference]: Finished difference. Result has 150 places, 142 transitions, 372 flow [2022-11-21 14:01:34,703 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=372, PETRI_PLACES=150, PETRI_TRANSITIONS=142} [2022-11-21 14:01:34,704 INFO L288 CegarLoopForPetriNet]: 152 programPoint places, -2 predicate places. [2022-11-21 14:01:34,704 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 142 transitions, 372 flow [2022-11-21 14:01:34,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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 14:01:34,705 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:01:34,705 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:01:34,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 14:01:34,706 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 14:01:34,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:01:34,706 INFO L85 PathProgramCache]: Analyzing trace with hash -531578059, now seen corresponding path program 1 times [2022-11-21 14:01:34,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:01:34,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706058627] [2022-11-21 14:01:34,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:01:34,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:01:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:34,982 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 14:01:34,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:01:34,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706058627] [2022-11-21 14:01:34,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706058627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:01:34,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:01:34,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 14:01:34,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561255975] [2022-11-21 14:01:34,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:01:34,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 14:01:34,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:01:34,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 14:01:34,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 14:01:34,992 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2022-11-21 14:01:34,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 142 transitions, 372 flow. Second operand has 5 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 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 14:01:34,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:01:34,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2022-11-21 14:01:34,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:01:35,622 INFO L130 PetriNetUnfolder]: 1184/2828 cut-off events. [2022-11-21 14:01:35,622 INFO L131 PetriNetUnfolder]: For 948/948 co-relation queries the response was YES. [2022-11-21 14:01:35,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6176 conditions, 2828 events. 1184/2828 cut-off events. For 948/948 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 21692 event pairs, 246 based on Foata normal form. 0/2690 useless extension candidates. Maximal degree in co-relation 6117. Up to 683 conditions per place. [2022-11-21 14:01:35,652 INFO L137 encePairwiseOnDemand]: 136/145 looper letters, 46 selfloop transitions, 13 changer transitions 4/176 dead transitions. [2022-11-21 14:01:35,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 176 transitions, 594 flow [2022-11-21 14:01:35,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 14:01:35,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 14:01:35,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 652 transitions. [2022-11-21 14:01:35,657 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8993103448275862 [2022-11-21 14:01:35,660 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 652 transitions. [2022-11-21 14:01:35,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 652 transitions. [2022-11-21 14:01:35,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:01:35,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 652 transitions. [2022-11-21 14:01:35,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.4) internal successors, (652), 5 states have internal predecessors, (652), 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 14:01:35,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 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 14:01:35,666 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 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 14:01:35,666 INFO L175 Difference]: Start difference. First operand has 150 places, 142 transitions, 372 flow. Second operand 5 states and 652 transitions. [2022-11-21 14:01:35,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 176 transitions, 594 flow [2022-11-21 14:01:35,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 176 transitions, 576 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-11-21 14:01:35,680 INFO L231 Difference]: Finished difference. Result has 153 places, 142 transitions, 396 flow [2022-11-21 14:01:35,681 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=396, PETRI_PLACES=153, PETRI_TRANSITIONS=142} [2022-11-21 14:01:35,682 INFO L288 CegarLoopForPetriNet]: 152 programPoint places, 1 predicate places. [2022-11-21 14:01:35,682 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 142 transitions, 396 flow [2022-11-21 14:01:35,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 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 14:01:35,683 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:01:35,683 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, 1, 1, 1, 1, 1, 1, 1, 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 14:01:35,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 14:01:35,684 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 14:01:35,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:01:35,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1366422367, now seen corresponding path program 1 times [2022-11-21 14:01:35,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:01:35,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142588198] [2022-11-21 14:01:35,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:01:35,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:01:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:35,961 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 14:01:35,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:01:35,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142588198] [2022-11-21 14:01:35,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142588198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:01:35,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:01:35,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 14:01:35,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828309759] [2022-11-21 14:01:35,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:01:35,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 14:01:35,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:01:35,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 14:01:35,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 14:01:35,966 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2022-11-21 14:01:35,967 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 142 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 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 14:01:35,967 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:01:35,967 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2022-11-21 14:01:35,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:01:36,760 INFO L130 PetriNetUnfolder]: 1165/3571 cut-off events. [2022-11-21 14:01:36,761 INFO L131 PetriNetUnfolder]: For 1886/1886 co-relation queries the response was YES. [2022-11-21 14:01:36,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6988 conditions, 3571 events. 1165/3571 cut-off events. For 1886/1886 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 30038 event pairs, 351 based on Foata normal form. 12/3408 useless extension candidates. Maximal degree in co-relation 6928. Up to 683 conditions per place. [2022-11-21 14:01:36,776 INFO L137 encePairwiseOnDemand]: 136/145 looper letters, 0 selfloop transitions, 0 changer transitions 168/168 dead transitions. [2022-11-21 14:01:36,776 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 168 transitions, 546 flow [2022-11-21 14:01:36,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 14:01:36,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 14:01:36,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 761 transitions. [2022-11-21 14:01:36,778 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8747126436781609 [2022-11-21 14:01:36,779 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 761 transitions. [2022-11-21 14:01:36,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 761 transitions. [2022-11-21 14:01:36,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:01:36,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 761 transitions. [2022-11-21 14:01:36,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.83333333333333) internal successors, (761), 6 states have internal predecessors, (761), 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 14:01:36,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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 14:01:36,784 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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 14:01:36,785 INFO L175 Difference]: Start difference. First operand has 153 places, 142 transitions, 396 flow. Second operand 6 states and 761 transitions. [2022-11-21 14:01:36,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 168 transitions, 546 flow [2022-11-21 14:01:36,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 168 transitions, 491 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-21 14:01:36,800 INFO L231 Difference]: Finished difference. Result has 148 places, 0 transitions, 0 flow [2022-11-21 14:01:36,800 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=148, PETRI_TRANSITIONS=0} [2022-11-21 14:01:36,802 INFO L288 CegarLoopForPetriNet]: 152 programPoint places, -4 predicate places. [2022-11-21 14:01:36,802 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 0 transitions, 0 flow [2022-11-21 14:01:36,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 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 14:01:36,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-21 14:01:36,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-21 14:01:36,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-21 14:01:36,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-21 14:01:36,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-21 14:01:36,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-21 14:01:36,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-21 14:01:36,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-21 14:01:36,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-21 14:01:36,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-21 14:01:36,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-21 14:01:36,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-21 14:01:36,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-21 14:01:36,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-21 14:01:36,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-21 14:01:36,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-21 14:01:36,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-21 14:01:36,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-21 14:01:36,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-21 14:01:36,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-21 14:01:36,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 14:01:36,815 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-21 14:01:36,821 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 14:01:36,822 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 14:01:36,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 02:01:36 BasicIcfg [2022-11-21 14:01:36,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 14:01:36,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 14:01:36,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 14:01:36,828 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 14:01:36,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:01:29" (3/4) ... [2022-11-21 14:01:36,831 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 14:01:36,836 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 14:01:36,836 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 14:01:36,836 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-21 14:01:36,836 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-21 14:01:36,842 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-21 14:01:36,842 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 14:01:36,842 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 14:01:36,843 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 14:01:36,888 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bab078d-81f9-47e8-937e-e9dc7f19d689/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 14:01:36,888 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 14:01:36,889 INFO L158 Benchmark]: Toolchain (without parser) took 9373.08ms. Allocated memory was 172.0MB in the beginning and 465.6MB in the end (delta: 293.6MB). Free memory was 137.3MB in the beginning and 301.4MB in the end (delta: -164.0MB). Peak memory consumption was 132.4MB. Max. memory is 16.1GB. [2022-11-21 14:01:36,889 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 127.9MB. Free memory was 71.5MB in the beginning and 71.4MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 14:01:36,889 INFO L158 Benchmark]: CACSL2BoogieTranslator took 704.30ms. Allocated memory is still 172.0MB. Free memory was 137.3MB in the beginning and 113.1MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-21 14:01:36,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.27ms. Allocated memory is still 172.0MB. Free memory was 113.1MB in the beginning and 110.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 14:01:36,890 INFO L158 Benchmark]: Boogie Preprocessor took 34.52ms. Allocated memory is still 172.0MB. Free memory was 110.2MB in the beginning and 108.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 14:01:36,890 INFO L158 Benchmark]: RCFGBuilder took 945.99ms. Allocated memory is still 172.0MB. Free memory was 108.1MB in the beginning and 69.1MB in the end (delta: 39.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-21 14:01:36,891 INFO L158 Benchmark]: TraceAbstraction took 7536.22ms. Allocated memory was 172.0MB in the beginning and 465.6MB in the end (delta: 293.6MB). Free memory was 68.3MB in the beginning and 304.5MB in the end (delta: -236.2MB). Peak memory consumption was 308.6MB. Max. memory is 16.1GB. [2022-11-21 14:01:36,891 INFO L158 Benchmark]: Witness Printer took 60.40ms. Allocated memory is still 465.6MB. Free memory was 304.5MB in the beginning and 301.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 14:01:36,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 127.9MB. Free memory was 71.5MB in the beginning and 71.4MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 704.30ms. Allocated memory is still 172.0MB. Free memory was 137.3MB in the beginning and 113.1MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.27ms. Allocated memory is still 172.0MB. Free memory was 113.1MB in the beginning and 110.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.52ms. Allocated memory is still 172.0MB. Free memory was 110.2MB in the beginning and 108.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 945.99ms. Allocated memory is still 172.0MB. Free memory was 108.1MB in the beginning and 69.1MB in the end (delta: 39.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7536.22ms. Allocated memory was 172.0MB in the beginning and 465.6MB in the end (delta: 293.6MB). Free memory was 68.3MB in the beginning and 304.5MB in the end (delta: -236.2MB). Peak memory consumption was 308.6MB. Max. memory is 16.1GB. * Witness Printer took 60.40ms. Allocated memory is still 465.6MB. Free memory was 304.5MB in the beginning and 301.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 854]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 854]: 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, 190 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: 7.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 146 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 294 IncrementalHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 17 mSDtfsCounter, 294 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=396occurred 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, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 352 NumberOfCodeBlocks, 352 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 347 ConstructedInterpolants, 0 QuantifiedInterpolants, 961 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 14:01:36,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bab078d-81f9-47e8-937e-e9dc7f19d689/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