./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_124c5e78-adbe-4edb-9d70-380dba5f4282/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 03b62196b25662d8efd4f9890b2a9ba3be7263fa8e2874a92734800e01910b00 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:40:01,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:40:01,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:40:01,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:40:01,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:40:01,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:40:01,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:40:01,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:40:01,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:40:01,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:40:01,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:40:01,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:40:01,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:40:01,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:40:01,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:40:01,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:40:01,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:40:01,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:40:01,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:40:01,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:40:01,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:40:01,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:40:01,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:40:01,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:40:01,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:40:01,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:40:01,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:40:01,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:40:01,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:40:01,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:40:01,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:40:01,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:40:01,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:40:01,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:40:01,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:40:01,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:40:01,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:40:01,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:40:01,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:40:01,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:40:01,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:40:01,672 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 12:40:01,706 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:40:01,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:40:01,707 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:40:01,707 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:40:01,708 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:40:01,708 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:40:01,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:40:01,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:40:01,709 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:40:01,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:40:01,711 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:40:01,711 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:40:01,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:40:01,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:40:01,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:40:01,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:40:01,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:40:01,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:40:01,712 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 12:40:01,712 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:40:01,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:40:01,713 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:40:01,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:40:01,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:40:01,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:40:01,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:40:01,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:40:01,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:40:01,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:40:01,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:40:01,716 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:40:01,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:40:01,717 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:40:01,717 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:40:01,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:40:01,718 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_124c5e78-adbe-4edb-9d70-380dba5f4282/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03b62196b25662d8efd4f9890b2a9ba3be7263fa8e2874a92734800e01910b00 [2022-11-16 12:40:02,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:40:02,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:40:02,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:40:02,035 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:40:02,035 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:40:02,037 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.i [2022-11-16 12:40:02,102 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/bin/uautomizer-tPACEb0tL8/data/47ea0a86c/03773b43bc1f4f088a27c1dc5ab6e16b/FLAGffcdee6d8 [2022-11-16 12:40:02,628 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:40:02,629 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/sv-benchmarks/c/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.i [2022-11-16 12:40:02,642 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/bin/uautomizer-tPACEb0tL8/data/47ea0a86c/03773b43bc1f4f088a27c1dc5ab6e16b/FLAGffcdee6d8 [2022-11-16 12:40:02,936 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/bin/uautomizer-tPACEb0tL8/data/47ea0a86c/03773b43bc1f4f088a27c1dc5ab6e16b [2022-11-16 12:40:02,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:40:02,940 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:40:02,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:40:02,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:40:02,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:40:02,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:40:02" (1/1) ... [2022-11-16 12:40:02,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310c28c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:02, skipping insertion in model container [2022-11-16 12:40:02,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:40:02" (1/1) ... [2022-11-16 12:40:02,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:40:02,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:40:03,257 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/sv-benchmarks/c/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-16 12:40:03,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:40:03,478 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:40:03,498 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/sv-benchmarks/c/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-16 12:40:03,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:40:03,648 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:40:03,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:03 WrapperNode [2022-11-16 12:40:03,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:40:03,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:40:03,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:40:03,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:40:03,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:03" (1/1) ... [2022-11-16 12:40:03,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:03" (1/1) ... [2022-11-16 12:40:03,730 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2022-11-16 12:40:03,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:40:03,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:40:03,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:40:03,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:40:03,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:03" (1/1) ... [2022-11-16 12:40:03,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:03" (1/1) ... [2022-11-16 12:40:03,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:03" (1/1) ... [2022-11-16 12:40:03,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:03" (1/1) ... [2022-11-16 12:40:03,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:03" (1/1) ... [2022-11-16 12:40:03,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:03" (1/1) ... [2022-11-16 12:40:03,790 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:03" (1/1) ... [2022-11-16 12:40:03,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:03" (1/1) ... [2022-11-16 12:40:03,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:40:03,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:40:03,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:40:03,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:40:03,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:03" (1/1) ... [2022-11-16 12:40:03,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:40:03,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:40:03,848 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:40:03,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:40:03,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:40:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:40:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:40:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:40:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:40:03,900 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 12:40:03,901 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 12:40:03,901 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 12:40:03,901 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 12:40:03,901 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 12:40:03,901 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 12:40:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-16 12:40:03,902 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-16 12:40:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:40:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:40:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:40:03,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:40:03,904 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:40:04,120 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:40:04,122 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:40:04,662 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:40:04,860 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:40:04,861 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:40:04,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:40:04 BoogieIcfgContainer [2022-11-16 12:40:04,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:40:04,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:40:04,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:40:04,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:40:04,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:40:02" (1/3) ... [2022-11-16 12:40:04,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18580319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:40:04, skipping insertion in model container [2022-11-16 12:40:04,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:03" (2/3) ... [2022-11-16 12:40:04,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18580319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:40:04, skipping insertion in model container [2022-11-16 12:40:04,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:40:04" (3/3) ... [2022-11-16 12:40:04,880 INFO L112 eAbstractionObserver]: Analyzing ICFG mix053_power.oepc_pso.oepc_rmo.oepc.i [2022-11-16 12:40:04,889 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:40:04,899 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:40:04,899 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-16 12:40:04,899 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:40:04,970 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:40:05,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 152 places, 141 transitions, 302 flow [2022-11-16 12:40:05,109 INFO L130 PetriNetUnfolder]: 2/137 cut-off events. [2022-11-16 12:40:05,113 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:40:05,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 137 events. 2/137 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. 0/127 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2022-11-16 12:40:05,118 INFO L82 GeneralOperation]: Start removeDead. Operand has 152 places, 141 transitions, 302 flow [2022-11-16 12:40:05,123 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 148 places, 137 transitions, 286 flow [2022-11-16 12:40:05,134 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:40:05,140 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;@391e9edf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:40:05,140 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-16 12:40:05,155 INFO L130 PetriNetUnfolder]: 0/54 cut-off events. [2022-11-16 12:40:05,155 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:40:05,155 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:40:05,156 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] [2022-11-16 12:40:05,157 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:40:05,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:40:05,162 INFO L85 PathProgramCache]: Analyzing trace with hash -855847082, now seen corresponding path program 1 times [2022-11-16 12:40:05,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:40:05,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874472057] [2022-11-16 12:40:05,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:40:05,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:40:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:40:05,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:40:05,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:40:05,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874472057] [2022-11-16 12:40:05,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874472057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:40:05,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:40:05,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:40:05,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056290262] [2022-11-16 12:40:05,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:40:05,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:40:05,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:40:05,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:40:05,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:40:05,671 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 141 [2022-11-16 12:40:05,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 137 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:05,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:40:05,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 141 [2022-11-16 12:40:05,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:40:07,628 INFO L130 PetriNetUnfolder]: 4102/7312 cut-off events. [2022-11-16 12:40:07,629 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2022-11-16 12:40:07,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13337 conditions, 7312 events. 4102/7312 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 487. Compared 57421 event pairs, 1225 based on Foata normal form. 198/5165 useless extension candidates. Maximal degree in co-relation 13281. Up to 5438 conditions per place. [2022-11-16 12:40:07,724 INFO L137 encePairwiseOnDemand]: 126/141 looper letters, 35 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2022-11-16 12:40:07,725 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 149 transitions, 399 flow [2022-11-16 12:40:07,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:40:07,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:40:07,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 391 transitions. [2022-11-16 12:40:07,745 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9243498817966903 [2022-11-16 12:40:07,746 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 391 transitions. [2022-11-16 12:40:07,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 391 transitions. [2022-11-16 12:40:07,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:40:07,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 391 transitions. [2022-11-16 12:40:07,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:07,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:07,769 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:07,771 INFO L175 Difference]: Start difference. First operand has 148 places, 137 transitions, 286 flow. Second operand 3 states and 391 transitions. [2022-11-16 12:40:07,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 149 transitions, 399 flow [2022-11-16 12:40:07,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 149 transitions, 392 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:40:07,782 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 323 flow [2022-11-16 12:40:07,784 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=323, PETRI_PLACES=146, PETRI_TRANSITIONS=138} [2022-11-16 12:40:07,788 INFO L288 CegarLoopForPetriNet]: 148 programPoint places, -2 predicate places. [2022-11-16 12:40:07,789 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 323 flow [2022-11-16 12:40:07,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:07,790 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:40:07,791 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] [2022-11-16 12:40:07,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:40:07,791 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:40:07,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:40:07,794 INFO L85 PathProgramCache]: Analyzing trace with hash -2030255119, now seen corresponding path program 1 times [2022-11-16 12:40:07,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:40:07,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645679195] [2022-11-16 12:40:07,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:40:07,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:40:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:40:08,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:40:08,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:40:08,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645679195] [2022-11-16 12:40:08,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645679195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:40:08,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:40:08,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:40:08,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553561873] [2022-11-16 12:40:08,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:40:08,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:40:08,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:40:08,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:40:08,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:40:08,085 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 141 [2022-11-16 12:40:08,086 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 138 transitions, 323 flow. Second operand has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:08,086 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:40:08,086 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 141 [2022-11-16 12:40:08,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:40:09,291 INFO L130 PetriNetUnfolder]: 2592/4944 cut-off events. [2022-11-16 12:40:09,291 INFO L131 PetriNetUnfolder]: For 116/116 co-relation queries the response was YES. [2022-11-16 12:40:09,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10899 conditions, 4944 events. 2592/4944 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 40945 event pairs, 417 based on Foata normal form. 0/4060 useless extension candidates. Maximal degree in co-relation 10844. Up to 2078 conditions per place. [2022-11-16 12:40:09,345 INFO L137 encePairwiseOnDemand]: 128/141 looper letters, 45 selfloop transitions, 13 changer transitions 0/167 dead transitions. [2022-11-16 12:40:09,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 167 transitions, 523 flow [2022-11-16 12:40:09,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:40:09,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 12:40:09,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 514 transitions. [2022-11-16 12:40:09,349 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9113475177304965 [2022-11-16 12:40:09,350 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 514 transitions. [2022-11-16 12:40:09,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 514 transitions. [2022-11-16 12:40:09,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:40:09,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 514 transitions. [2022-11-16 12:40:09,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 128.5) internal successors, (514), 4 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:09,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:09,355 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:09,356 INFO L175 Difference]: Start difference. First operand has 146 places, 138 transitions, 323 flow. Second operand 4 states and 514 transitions. [2022-11-16 12:40:09,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 167 transitions, 523 flow [2022-11-16 12:40:09,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 167 transitions, 518 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:40:09,365 INFO L231 Difference]: Finished difference. Result has 150 places, 146 transitions, 421 flow [2022-11-16 12:40:09,365 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=318, 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=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=421, PETRI_PLACES=150, PETRI_TRANSITIONS=146} [2022-11-16 12:40:09,366 INFO L288 CegarLoopForPetriNet]: 148 programPoint places, 2 predicate places. [2022-11-16 12:40:09,366 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 146 transitions, 421 flow [2022-11-16 12:40:09,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:09,367 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:40:09,367 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] [2022-11-16 12:40:09,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:40:09,368 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:40:09,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:40:09,369 INFO L85 PathProgramCache]: Analyzing trace with hash -2030255118, now seen corresponding path program 1 times [2022-11-16 12:40:09,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:40:09,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859985407] [2022-11-16 12:40:09,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:40:09,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:40:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:40:09,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:40:09,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:40:09,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859985407] [2022-11-16 12:40:09,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859985407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:40:09,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:40:09,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:40:09,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954548285] [2022-11-16 12:40:09,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:40:09,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:40:09,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:40:09,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:40:09,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:40:09,570 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 141 [2022-11-16 12:40:09,571 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 146 transitions, 421 flow. Second operand has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:09,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:40:09,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 141 [2022-11-16 12:40:09,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:40:10,286 INFO L130 PetriNetUnfolder]: 1367/2983 cut-off events. [2022-11-16 12:40:10,286 INFO L131 PetriNetUnfolder]: For 2748/2748 co-relation queries the response was YES. [2022-11-16 12:40:10,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6760 conditions, 2983 events. 1367/2983 cut-off events. For 2748/2748 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 21072 event pairs, 724 based on Foata normal form. 379/3101 useless extension candidates. Maximal degree in co-relation 6702. Up to 1599 conditions per place. [2022-11-16 12:40:10,313 INFO L137 encePairwiseOnDemand]: 132/141 looper letters, 35 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2022-11-16 12:40:10,313 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 149 transitions, 473 flow [2022-11-16 12:40:10,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:40:10,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 12:40:10,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 492 transitions. [2022-11-16 12:40:10,316 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8723404255319149 [2022-11-16 12:40:10,317 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 492 transitions. [2022-11-16 12:40:10,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 492 transitions. [2022-11-16 12:40:10,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:40:10,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 492 transitions. [2022-11-16 12:40:10,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:10,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:10,320 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:10,321 INFO L175 Difference]: Start difference. First operand has 150 places, 146 transitions, 421 flow. Second operand 4 states and 492 transitions. [2022-11-16 12:40:10,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 149 transitions, 473 flow [2022-11-16 12:40:10,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 149 transitions, 450 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-16 12:40:10,332 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 352 flow [2022-11-16 12:40:10,332 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=143, 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=352, PETRI_PLACES=146, PETRI_TRANSITIONS=138} [2022-11-16 12:40:10,335 INFO L288 CegarLoopForPetriNet]: 148 programPoint places, -2 predicate places. [2022-11-16 12:40:10,335 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 352 flow [2022-11-16 12:40:10,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:10,336 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:40:10,336 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] [2022-11-16 12:40:10,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:40:10,337 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:40:10,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:40:10,338 INFO L85 PathProgramCache]: Analyzing trace with hash -659940999, now seen corresponding path program 1 times [2022-11-16 12:40:10,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:40:10,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755365994] [2022-11-16 12:40:10,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:40:10,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:40:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:40:10,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:40:10,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:40:10,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755365994] [2022-11-16 12:40:10,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755365994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:40:10,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:40:10,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:40:10,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133233537] [2022-11-16 12:40:10,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:40:10,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:40:10,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:40:10,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:40:10,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:40:10,519 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 141 [2022-11-16 12:40:10,520 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 138 transitions, 352 flow. Second operand has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:10,520 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:40:10,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 141 [2022-11-16 12:40:10,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:40:11,245 INFO L130 PetriNetUnfolder]: 1184/2759 cut-off events. [2022-11-16 12:40:11,246 INFO L131 PetriNetUnfolder]: For 1162/1162 co-relation queries the response was YES. [2022-11-16 12:40:11,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5631 conditions, 2759 events. 1184/2759 cut-off events. For 1162/1162 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 19720 event pairs, 375 based on Foata normal form. 0/2650 useless extension candidates. Maximal degree in co-relation 5574. Up to 683 conditions per place. [2022-11-16 12:40:11,274 INFO L137 encePairwiseOnDemand]: 132/141 looper letters, 46 selfloop transitions, 13 changer transitions 4/172 dead transitions. [2022-11-16 12:40:11,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 172 transitions, 574 flow [2022-11-16 12:40:11,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:40:11,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:40:11,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 632 transitions. [2022-11-16 12:40:11,278 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8964539007092198 [2022-11-16 12:40:11,281 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 632 transitions. [2022-11-16 12:40:11,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 632 transitions. [2022-11-16 12:40:11,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:40:11,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 632 transitions. [2022-11-16 12:40:11,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 126.4) internal successors, (632), 5 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:11,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:11,288 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:11,288 INFO L175 Difference]: Start difference. First operand has 146 places, 138 transitions, 352 flow. Second operand 5 states and 632 transitions. [2022-11-16 12:40:11,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 172 transitions, 574 flow [2022-11-16 12:40:11,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 172 transitions, 568 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:40:11,302 INFO L231 Difference]: Finished difference. Result has 149 places, 138 transitions, 388 flow [2022-11-16 12:40:11,302 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=388, PETRI_PLACES=149, PETRI_TRANSITIONS=138} [2022-11-16 12:40:11,303 INFO L288 CegarLoopForPetriNet]: 148 programPoint places, 1 predicate places. [2022-11-16 12:40:11,304 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 138 transitions, 388 flow [2022-11-16 12:40:11,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:11,304 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:40:11,305 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] [2022-11-16 12:40:11,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:40:11,305 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:40:11,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:40:11,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1440169621, now seen corresponding path program 1 times [2022-11-16 12:40:11,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:40:11,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497217496] [2022-11-16 12:40:11,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:40:11,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:40:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:40:11,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:40:11,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:40:11,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497217496] [2022-11-16 12:40:11,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497217496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:40:11,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:40:11,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:40:11,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986039104] [2022-11-16 12:40:11,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:40:11,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:40:11,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:40:11,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:40:11,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:40:11,594 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 141 [2022-11-16 12:40:11,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 138 transitions, 388 flow. Second operand has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:11,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:40:11,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 141 [2022-11-16 12:40:11,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:40:12,295 INFO L130 PetriNetUnfolder]: 1165/2719 cut-off events. [2022-11-16 12:40:12,296 INFO L131 PetriNetUnfolder]: For 2042/2042 co-relation queries the response was YES. [2022-11-16 12:40:12,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6136 conditions, 2719 events. 1165/2719 cut-off events. For 2042/2042 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 19219 event pairs, 375 based on Foata normal form. 12/2634 useless extension candidates. Maximal degree in co-relation 6078. Up to 683 conditions per place. [2022-11-16 12:40:12,308 INFO L137 encePairwiseOnDemand]: 132/141 looper letters, 0 selfloop transitions, 0 changer transitions 164/164 dead transitions. [2022-11-16 12:40:12,309 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 164 transitions, 538 flow [2022-11-16 12:40:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:40:12,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:40:12,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 737 transitions. [2022-11-16 12:40:12,311 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8711583924349882 [2022-11-16 12:40:12,311 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 737 transitions. [2022-11-16 12:40:12,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 737 transitions. [2022-11-16 12:40:12,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:40:12,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 737 transitions. [2022-11-16 12:40:12,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:12,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:12,318 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:12,318 INFO L175 Difference]: Start difference. First operand has 149 places, 138 transitions, 388 flow. Second operand 6 states and 737 transitions. [2022-11-16 12:40:12,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 164 transitions, 538 flow [2022-11-16 12:40:12,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 164 transitions, 483 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-16 12:40:12,331 INFO L231 Difference]: Finished difference. Result has 144 places, 0 transitions, 0 flow [2022-11-16 12:40:12,331 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=144, PETRI_TRANSITIONS=0} [2022-11-16 12:40:12,334 INFO L288 CegarLoopForPetriNet]: 148 programPoint places, -4 predicate places. [2022-11-16 12:40:12,335 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 0 transitions, 0 flow [2022-11-16 12:40:12,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:12,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-16 12:40:12,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-16 12:40:12,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-16 12:40:12,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-16 12:40:12,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-16 12:40:12,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-16 12:40:12,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-16 12:40:12,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-16 12:40:12,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-16 12:40:12,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-16 12:40:12,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-16 12:40:12,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-16 12:40:12,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-16 12:40:12,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-16 12:40:12,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-16 12:40:12,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-16 12:40:12,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-16 12:40:12,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-16 12:40:12,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-16 12:40:12,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-16 12:40:12,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:40:12,350 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 12:40:12,356 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:40:12,357 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:40:12,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:40:12 BasicIcfg [2022-11-16 12:40:12,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:40:12,363 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:40:12,363 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:40:12,364 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:40:12,364 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:40:04" (3/4) ... [2022-11-16 12:40:12,367 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:40:12,374 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-16 12:40:12,375 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-16 12:40:12,375 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-16 12:40:12,375 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-16 12:40:12,382 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-16 12:40:12,382 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 12:40:12,383 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:40:12,383 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:40:12,421 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:40:12,421 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:40:12,422 INFO L158 Benchmark]: Toolchain (without parser) took 9482.04ms. Allocated memory was 119.5MB in the beginning and 767.6MB in the end (delta: 648.0MB). Free memory was 77.0MB in the beginning and 498.4MB in the end (delta: -421.4MB). Peak memory consumption was 225.3MB. Max. memory is 16.1GB. [2022-11-16 12:40:12,422 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory is still 94.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:40:12,422 INFO L158 Benchmark]: CACSL2BoogieTranslator took 707.77ms. Allocated memory is still 119.5MB. Free memory was 76.8MB in the beginning and 80.7MB in the end (delta: -3.9MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-11-16 12:40:12,423 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.69ms. Allocated memory is still 119.5MB. Free memory was 80.7MB in the beginning and 78.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:40:12,423 INFO L158 Benchmark]: Boogie Preprocessor took 71.85ms. Allocated memory is still 119.5MB. Free memory was 78.3MB in the beginning and 76.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:40:12,424 INFO L158 Benchmark]: RCFGBuilder took 1056.21ms. Allocated memory was 119.5MB in the beginning and 159.4MB in the end (delta: 39.8MB). Free memory was 76.2MB in the beginning and 122.8MB in the end (delta: -46.6MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2022-11-16 12:40:12,424 INFO L158 Benchmark]: TraceAbstraction took 7496.45ms. Allocated memory was 159.4MB in the beginning and 767.6MB in the end (delta: 608.2MB). Free memory was 122.1MB in the beginning and 501.5MB in the end (delta: -379.4MB). Peak memory consumption was 378.7MB. Max. memory is 16.1GB. [2022-11-16 12:40:12,424 INFO L158 Benchmark]: Witness Printer took 57.92ms. Allocated memory is still 767.6MB. Free memory was 501.5MB in the beginning and 498.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:40:12,426 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory is still 94.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 707.77ms. Allocated memory is still 119.5MB. Free memory was 76.8MB in the beginning and 80.7MB in the end (delta: -3.9MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.69ms. Allocated memory is still 119.5MB. Free memory was 80.7MB in the beginning and 78.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.85ms. Allocated memory is still 119.5MB. Free memory was 78.3MB in the beginning and 76.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1056.21ms. Allocated memory was 119.5MB in the beginning and 159.4MB in the end (delta: 39.8MB). Free memory was 76.2MB in the beginning and 122.8MB in the end (delta: -46.6MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. * TraceAbstraction took 7496.45ms. Allocated memory was 159.4MB in the beginning and 767.6MB in the end (delta: 608.2MB). Free memory was 122.1MB in the beginning and 501.5MB in the end (delta: -379.4MB). Peak memory consumption was 378.7MB. Max. memory is 16.1GB. * Witness Printer took 57.92ms. Allocated memory is still 767.6MB. Free memory was 501.5MB in the beginning and 498.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 844]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 844]: 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, 184 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: 7.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 143 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 143 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 307 IncrementalHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 17 mSDtfsCounter, 307 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=421occurred in iteration=2, 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, 1.0s InterpolantComputationTime, 339 NumberOfCodeBlocks, 339 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 334 ConstructedInterpolants, 0 QuantifiedInterpolants, 772 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! [2022-11-16 12:40:12,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_124c5e78-adbe-4edb-9d70-380dba5f4282/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE