./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/unroll-cond-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/unroll-cond-3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8 --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 95e3bac7f28ae020b684175cea363a5866905518c289fbd40a07a7a3764acade --- 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-2329fc7 [2022-12-13 15:02:44,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:02:44,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:02:44,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:02:44,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:02:44,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:02:44,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:02:44,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:02:44,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:02:44,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:02:44,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:02:44,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:02:44,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:02:44,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:02:44,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:02:44,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:02:44,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:02:44,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:02:44,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:02:44,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:02:44,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:02:44,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:02:44,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:02:44,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:02:44,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:02:44,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:02:44,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:02:44,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:02:44,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:02:44,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:02:44,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:02:44,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:02:44,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:02:44,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:02:44,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:02:44,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:02:44,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:02:44,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:02:44,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:02:44,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:02:44,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:02:44,522 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 15:02:44,542 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:02:44,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:02:44,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:02:44,542 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:02:44,543 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:02:44,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:02:44,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:02:44,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:02:44,544 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:02:44,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:02:44,544 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:02:44,545 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:02:44,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:02:44,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:02:44,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:02:44,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:02:44,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:02:44,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:02:44,546 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 15:02:44,546 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:02:44,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:02:44,546 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:02:44,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:02:44,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:02:44,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:02:44,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:02:44,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:02:44,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:02:44,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:02:44,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:02:44,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:02:44,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:02:44,548 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:02:44,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:02:44,548 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:02:44,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:02:44,549 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:02:44,549 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95e3bac7f28ae020b684175cea363a5866905518c289fbd40a07a7a3764acade [2022-12-13 15:02:44,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:02:44,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:02:44,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:02:44,757 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:02:44,757 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:02:44,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/unroll-cond-3.wvr.c [2022-12-13 15:02:47,438 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:02:47,592 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:02:47,593 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/sv-benchmarks/c/weaver/unroll-cond-3.wvr.c [2022-12-13 15:02:47,598 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/data/4d336a6b4/59d00f311ec943a489146064da63132d/FLAG03aea0bc9 [2022-12-13 15:02:47,611 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/data/4d336a6b4/59d00f311ec943a489146064da63132d [2022-12-13 15:02:47,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:02:47,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:02:47,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:02:47,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:02:47,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:02:47,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:02:47" (1/1) ... [2022-12-13 15:02:47,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@153b8eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:47, skipping insertion in model container [2022-12-13 15:02:47,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:02:47" (1/1) ... [2022-12-13 15:02:47,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:02:47,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:02:47,807 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_2c00c7ba-84d8-4768-b191-0ae00c08c55e/sv-benchmarks/c/weaver/unroll-cond-3.wvr.c[2641,2654] [2022-12-13 15:02:47,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:02:47,824 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:02:47,846 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_2c00c7ba-84d8-4768-b191-0ae00c08c55e/sv-benchmarks/c/weaver/unroll-cond-3.wvr.c[2641,2654] [2022-12-13 15:02:47,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:02:47,860 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:02:47,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:47 WrapperNode [2022-12-13 15:02:47,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:02:47,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:02:47,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:02:47,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:02:47,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:47" (1/1) ... [2022-12-13 15:02:47,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:47" (1/1) ... [2022-12-13 15:02:47,893 INFO L138 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 164 [2022-12-13 15:02:47,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:02:47,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:02:47,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:02:47,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:02:47,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:47" (1/1) ... [2022-12-13 15:02:47,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:47" (1/1) ... [2022-12-13 15:02:47,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:47" (1/1) ... [2022-12-13 15:02:47,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:47" (1/1) ... [2022-12-13 15:02:47,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:47" (1/1) ... [2022-12-13 15:02:47,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:47" (1/1) ... [2022-12-13 15:02:47,918 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:47" (1/1) ... [2022-12-13 15:02:47,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:47" (1/1) ... [2022-12-13 15:02:47,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:02:47,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:02:47,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:02:47,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:02:47,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:47" (1/1) ... [2022-12-13 15:02:47,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:02:47,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:02:47,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:02:47,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:02:47,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 15:02:47,985 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 15:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 15:02:47,985 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 15:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 15:02:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:02:47,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:02:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:02:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:02:47,987 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 15:02:48,065 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:02:48,066 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:02:48,296 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:02:48,305 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:02:48,305 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 15:02:48,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:02:48 BoogieIcfgContainer [2022-12-13 15:02:48,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:02:48,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:02:48,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:02:48,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:02:48,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:02:47" (1/3) ... [2022-12-13 15:02:48,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cadd72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:02:48, skipping insertion in model container [2022-12-13 15:02:48,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:47" (2/3) ... [2022-12-13 15:02:48,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cadd72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:02:48, skipping insertion in model container [2022-12-13 15:02:48,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:02:48" (3/3) ... [2022-12-13 15:02:48,317 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-3.wvr.c [2022-12-13 15:02:48,325 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 15:02:48,336 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:02:48,336 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 15:02:48,336 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:02:48,416 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 15:02:48,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 201 places, 212 transitions, 440 flow [2022-12-13 15:02:48,501 INFO L130 PetriNetUnfolder]: 18/210 cut-off events. [2022-12-13 15:02:48,502 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 15:02:48,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 210 events. 18/210 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 326 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 111. Up to 2 conditions per place. [2022-12-13 15:02:48,506 INFO L82 GeneralOperation]: Start removeDead. Operand has 201 places, 212 transitions, 440 flow [2022-12-13 15:02:48,509 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 68 transitions, 136 flow [2022-12-13 15:02:48,512 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:02:48,520 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 68 transitions, 136 flow [2022-12-13 15:02:48,522 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 68 transitions, 136 flow [2022-12-13 15:02:48,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 68 transitions, 136 flow [2022-12-13 15:02:48,532 INFO L130 PetriNetUnfolder]: 4/68 cut-off events. [2022-12-13 15:02:48,533 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:02:48,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 68 events. 4/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-13 15:02:48,533 INFO L119 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 15:02:51,283 INFO L134 LiptonReduction]: Checked pairs total: 0 [2022-12-13 15:02:51,283 INFO L136 LiptonReduction]: Total number of compositions: 78 [2022-12-13 15:02:51,293 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:02:51,298 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;@6bcda5f1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:02:51,298 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 15:02:51,299 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-12-13 15:02:51,300 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:02:51,300 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:02:51,300 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 15:02:51,300 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 15:02:51,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:02:51,304 INFO L85 PathProgramCache]: Analyzing trace with hash 22721, now seen corresponding path program 1 times [2022-12-13 15:02:51,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:02:51,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582452354] [2022-12-13 15:02:51,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:02:51,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:02:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:51,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:02:51,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:02:51,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582452354] [2022-12-13 15:02:51,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582452354] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:02:51,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:02:51,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 15:02:51,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112451267] [2022-12-13 15:02:51,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:02:51,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:02:51,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:02:51,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:02:51,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:02:51,487 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 290 [2022-12-13 15:02:51,489 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 4 places, 4 transitions, 8 flow. Second operand has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 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) [2022-12-13 15:02:51,489 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:02:51,489 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 290 [2022-12-13 15:02:51,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:02:51,502 INFO L130 PetriNetUnfolder]: 2/6 cut-off events. [2022-12-13 15:02:51,502 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:02:51,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14 conditions, 6 events. 2/6 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 0/3 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-12-13 15:02:51,503 INFO L137 encePairwiseOnDemand]: 286/290 looper letters, 3 selfloop transitions, 3 changer transitions 0/6 dead transitions. [2022-12-13 15:02:51,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 6 places, 6 transitions, 24 flow [2022-12-13 15:02:51,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:02:51,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:02:51,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 580 transitions. [2022-12-13 15:02:51,513 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-13 15:02:51,514 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 580 transitions. [2022-12-13 15:02:51,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 580 transitions. [2022-12-13 15:02:51,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:02:51,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 580 transitions. [2022-12-13 15:02:51,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 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) [2022-12-13 15:02:51,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 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) [2022-12-13 15:02:51,528 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 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) [2022-12-13 15:02:51,530 INFO L175 Difference]: Start difference. First operand has 4 places, 4 transitions, 8 flow. Second operand 3 states and 580 transitions. [2022-12-13 15:02:51,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 6 places, 6 transitions, 24 flow [2022-12-13 15:02:51,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 6 places, 6 transitions, 24 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 15:02:51,533 INFO L231 Difference]: Finished difference. Result has 8 places, 6 transitions, 30 flow [2022-12-13 15:02:51,535 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=8, PETRI_DIFFERENCE_MINUEND_PLACES=4, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=30, PETRI_PLACES=8, PETRI_TRANSITIONS=6} [2022-12-13 15:02:51,538 INFO L288 CegarLoopForPetriNet]: 4 programPoint places, 4 predicate places. [2022-12-13 15:02:51,538 INFO L495 AbstractCegarLoop]: Abstraction has has 8 places, 6 transitions, 30 flow [2022-12-13 15:02:51,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 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) [2022-12-13 15:02:51,539 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:02:51,539 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 15:02:51,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:02:51,540 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 15:02:51,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:02:51,541 INFO L85 PathProgramCache]: Analyzing trace with hash 22722, now seen corresponding path program 1 times [2022-12-13 15:02:51,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:02:51,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12578102] [2022-12-13 15:02:51,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:02:51,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:02:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:51,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:02:51,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:02:51,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12578102] [2022-12-13 15:02:51,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12578102] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:02:51,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:02:51,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 15:02:51,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287435160] [2022-12-13 15:02:51,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:02:51,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:02:51,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:02:51,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:02:51,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:02:51,607 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 290 [2022-12-13 15:02:51,607 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 8 places, 6 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 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) [2022-12-13 15:02:51,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:02:51,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 290 [2022-12-13 15:02:51,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:02:51,616 INFO L130 PetriNetUnfolder]: 1/4 cut-off events. [2022-12-13 15:02:51,616 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:02:51,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 4 events. 1/4 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 2/5 useless extension candidates. Maximal degree in co-relation 6. Up to 4 conditions per place. [2022-12-13 15:02:51,616 INFO L137 encePairwiseOnDemand]: 288/290 looper letters, 3 selfloop transitions, 1 changer transitions 0/4 dead transitions. [2022-12-13 15:02:51,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 9 places, 4 transitions, 28 flow [2022-12-13 15:02:51,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:02:51,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:02:51,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 577 transitions. [2022-12-13 15:02:51,618 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6632183908045977 [2022-12-13 15:02:51,618 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 577 transitions. [2022-12-13 15:02:51,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 577 transitions. [2022-12-13 15:02:51,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:02:51,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 577 transitions. [2022-12-13 15:02:51,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 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) [2022-12-13 15:02:51,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 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) [2022-12-13 15:02:51,623 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 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) [2022-12-13 15:02:51,623 INFO L175 Difference]: Start difference. First operand has 8 places, 6 transitions, 30 flow. Second operand 3 states and 577 transitions. [2022-12-13 15:02:51,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 9 places, 4 transitions, 28 flow [2022-12-13 15:02:51,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 7 places, 4 transitions, 22 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 15:02:51,624 INFO L231 Difference]: Finished difference. Result has 7 places, 4 transitions, 16 flow [2022-12-13 15:02:51,625 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=5, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=16, PETRI_PLACES=7, PETRI_TRANSITIONS=4} [2022-12-13 15:02:51,625 INFO L288 CegarLoopForPetriNet]: 4 programPoint places, 3 predicate places. [2022-12-13 15:02:51,625 INFO L495 AbstractCegarLoop]: Abstraction has has 7 places, 4 transitions, 16 flow [2022-12-13 15:02:51,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 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) [2022-12-13 15:02:51,626 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:02:51,626 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 15:02:51,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:02:51,627 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 15:02:51,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:02:51,627 INFO L85 PathProgramCache]: Analyzing trace with hash 705744, now seen corresponding path program 1 times [2022-12-13 15:02:51,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:02:51,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142771099] [2022-12-13 15:02:51,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:02:51,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:02:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:51,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:02:51,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:02:51,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142771099] [2022-12-13 15:02:51,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142771099] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:02:51,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143749624] [2022-12-13 15:02:51,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:02:51,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:02:51,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:02:51,697 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:02:51,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 15:02:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:51,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 15:02:51,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:02:51,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:02:51,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:02:51,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:02:51,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143749624] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:02:51,790 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:02:51,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2022-12-13 15:02:51,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246094279] [2022-12-13 15:02:51,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:02:51,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:02:51,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:02:51,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:02:51,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:02:51,813 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 290 [2022-12-13 15:02:51,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 7 places, 4 transitions, 16 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2022-12-13 15:02:51,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:02:51,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 290 [2022-12-13 15:02:51,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:02:51,830 INFO L130 PetriNetUnfolder]: 1/7 cut-off events. [2022-12-13 15:02:51,830 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:02:51,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 7 events. 1/7 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 0/6 useless extension candidates. Maximal degree in co-relation 17. Up to 7 conditions per place. [2022-12-13 15:02:51,830 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 2 selfloop transitions, 5 changer transitions 0/7 dead transitions. [2022-12-13 15:02:51,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 7 transitions, 42 flow [2022-12-13 15:02:51,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:02:51,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:02:51,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1156 transitions. [2022-12-13 15:02:51,833 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.664367816091954 [2022-12-13 15:02:51,833 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1156 transitions. [2022-12-13 15:02:51,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1156 transitions. [2022-12-13 15:02:51,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:02:51,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1156 transitions. [2022-12-13 15:02:51,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 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) [2022-12-13 15:02:51,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 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) [2022-12-13 15:02:51,851 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 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) [2022-12-13 15:02:51,851 INFO L175 Difference]: Start difference. First operand has 7 places, 4 transitions, 16 flow. Second operand 6 states and 1156 transitions. [2022-12-13 15:02:51,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 7 transitions, 42 flow [2022-12-13 15:02:51,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 7 transitions, 41 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:02:51,851 INFO L231 Difference]: Finished difference. Result has 14 places, 7 transitions, 51 flow [2022-12-13 15:02:51,852 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=15, PETRI_DIFFERENCE_MINUEND_PLACES=6, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=51, PETRI_PLACES=14, PETRI_TRANSITIONS=7} [2022-12-13 15:02:51,852 INFO L288 CegarLoopForPetriNet]: 4 programPoint places, 10 predicate places. [2022-12-13 15:02:51,852 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 7 transitions, 51 flow [2022-12-13 15:02:51,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2022-12-13 15:02:51,853 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:02:51,853 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2022-12-13 15:02:51,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 15:02:52,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:02:52,055 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 15:02:52,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:02:52,057 INFO L85 PathProgramCache]: Analyzing trace with hash -448633727, now seen corresponding path program 2 times [2022-12-13 15:02:52,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:02:52,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294673645] [2022-12-13 15:02:52,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:02:52,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:02:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:52,249 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:02:52,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:02:52,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294673645] [2022-12-13 15:02:52,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294673645] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:02:52,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299702415] [2022-12-13 15:02:52,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:02:52,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:02:52,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:02:52,252 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:02:52,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 15:02:52,315 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 15:02:52,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:02:52,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 15:02:52,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:02:52,330 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:02:52,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:02:52,372 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:02:52,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299702415] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:02:52,372 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:02:52,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-12-13 15:02:52,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45627360] [2022-12-13 15:02:52,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:02:52,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 15:02:52,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:02:52,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 15:02:52,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:02:52,417 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 290 [2022-12-13 15:02:52,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 7 transitions, 51 flow. Second operand has 12 states, 12 states have (on average 192.0) internal successors, (2304), 12 states have internal predecessors, (2304), 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) [2022-12-13 15:02:52,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:02:52,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 290 [2022-12-13 15:02:52,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:02:52,446 INFO L130 PetriNetUnfolder]: 1/13 cut-off events. [2022-12-13 15:02:52,446 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-12-13 15:02:52,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 13 events. 1/13 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 6/19 useless extension candidates. Maximal degree in co-relation 52. Up to 13 conditions per place. [2022-12-13 15:02:52,447 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 2 selfloop transitions, 11 changer transitions 0/13 dead transitions. [2022-12-13 15:02:52,447 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 13 transitions, 113 flow [2022-12-13 15:02:52,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 15:02:52,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 15:02:52,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2311 transitions. [2022-12-13 15:02:52,450 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.664080459770115 [2022-12-13 15:02:52,450 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2311 transitions. [2022-12-13 15:02:52,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2311 transitions. [2022-12-13 15:02:52,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:02:52,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2311 transitions. [2022-12-13 15:02:52,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 192.58333333333334) internal successors, (2311), 12 states have internal predecessors, (2311), 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) [2022-12-13 15:02:52,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 290.0) internal successors, (3770), 13 states have internal predecessors, (3770), 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) [2022-12-13 15:02:52,458 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 290.0) internal successors, (3770), 13 states have internal predecessors, (3770), 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) [2022-12-13 15:02:52,459 INFO L175 Difference]: Start difference. First operand has 14 places, 7 transitions, 51 flow. Second operand 12 states and 2311 transitions. [2022-12-13 15:02:52,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 13 transitions, 113 flow [2022-12-13 15:02:52,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 13 transitions, 99 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-13 15:02:52,460 INFO L231 Difference]: Finished difference. Result has 30 places, 13 transitions, 121 flow [2022-12-13 15:02:52,460 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=121, PETRI_PLACES=30, PETRI_TRANSITIONS=13} [2022-12-13 15:02:52,460 INFO L288 CegarLoopForPetriNet]: 4 programPoint places, 26 predicate places. [2022-12-13 15:02:52,461 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 13 transitions, 121 flow [2022-12-13 15:02:52,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 192.0) internal successors, (2304), 12 states have internal predecessors, (2304), 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) [2022-12-13 15:02:52,461 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:02:52,461 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1] [2022-12-13 15:02:52,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 15:02:52,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:02:52,662 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 15:02:52,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:02:52,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1690947039, now seen corresponding path program 3 times [2022-12-13 15:02:52,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:02:52,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681010642] [2022-12-13 15:02:52,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:02:52,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:02:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:52,905 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:02:52,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:02:52,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681010642] [2022-12-13 15:02:52,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681010642] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:02:52,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287899691] [2022-12-13 15:02:52,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 15:02:52,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:02:52,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:02:52,908 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:02:52,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 15:02:52,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 15:02:52,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:02:52,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 15:02:52,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:02:53,007 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-13 15:02:53,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:02:53,038 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-13 15:02:53,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287899691] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:02:53,039 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:02:53,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 2, 2] total 13 [2022-12-13 15:02:53,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55806601] [2022-12-13 15:02:53,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:02:53,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 15:02:53,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:02:53,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 15:02:53,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2022-12-13 15:02:53,114 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 290 [2022-12-13 15:02:53,118 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 13 transitions, 121 flow. Second operand has 15 states, 15 states have (on average 189.06666666666666) internal successors, (2836), 15 states have internal predecessors, (2836), 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) [2022-12-13 15:02:53,118 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:02:53,118 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 290 [2022-12-13 15:02:53,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:02:53,240 INFO L130 PetriNetUnfolder]: 1/13 cut-off events. [2022-12-13 15:02:53,240 INFO L131 PetriNetUnfolder]: For 67/67 co-relation queries the response was YES. [2022-12-13 15:02:53,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 13 events. 1/13 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 2/15 useless extension candidates. Maximal degree in co-relation 62. Up to 10 conditions per place. [2022-12-13 15:02:53,240 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2022-12-13 15:02:53,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 13 transitions, 133 flow [2022-12-13 15:02:53,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 15:02:53,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 15:02:53,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2647 transitions. [2022-12-13 15:02:53,248 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6519704433497537 [2022-12-13 15:02:53,248 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2647 transitions. [2022-12-13 15:02:53,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2647 transitions. [2022-12-13 15:02:53,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:02:53,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2647 transitions. [2022-12-13 15:02:53,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 189.07142857142858) internal successors, (2647), 14 states have internal predecessors, (2647), 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) [2022-12-13 15:02:53,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 290.0) internal successors, (4350), 15 states have internal predecessors, (4350), 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) [2022-12-13 15:02:53,259 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 290.0) internal successors, (4350), 15 states have internal predecessors, (4350), 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) [2022-12-13 15:02:53,259 INFO L175 Difference]: Start difference. First operand has 30 places, 13 transitions, 121 flow. Second operand 14 states and 2647 transitions. [2022-12-13 15:02:53,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 13 transitions, 133 flow [2022-12-13 15:02:53,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 13 transitions, 59 flow, removed 22 selfloop flow, removed 15 redundant places. [2022-12-13 15:02:53,261 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2022-12-13 15:02:53,261 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2022-12-13 15:02:53,261 INFO L288 CegarLoopForPetriNet]: 4 programPoint places, 23 predicate places. [2022-12-13 15:02:53,261 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2022-12-13 15:02:53,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 189.06666666666666) internal successors, (2836), 15 states have internal predecessors, (2836), 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) [2022-12-13 15:02:53,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-13 15:02:53,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-13 15:02:53,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 15:02:53,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-13 15:02:53,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 15:02:53,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:02:53,467 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2022-12-13 15:02:53,476 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 15:02:53,476 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:02:53,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:02:53 BasicIcfg [2022-12-13 15:02:53,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:02:53,487 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:02:53,487 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:02:53,488 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:02:53,489 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:02:48" (3/4) ... [2022-12-13 15:02:53,499 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 15:02:53,517 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 15:02:53,518 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 15:02:53,528 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-12-13 15:02:53,529 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 15:02:53,529 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 15:02:53,530 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 15:02:53,613 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 15:02:53,614 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:02:53,614 INFO L158 Benchmark]: Toolchain (without parser) took 5999.21ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 131.0MB in the beginning and 139.8MB in the end (delta: -8.8MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2022-12-13 15:02:53,615 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 163.6MB. Free memory is still 137.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:02:53,615 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.22ms. Allocated memory is still 163.6MB. Free memory was 130.7MB in the beginning and 119.3MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 15:02:53,615 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.53ms. Allocated memory is still 163.6MB. Free memory was 119.3MB in the beginning and 117.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:02:53,616 INFO L158 Benchmark]: Boogie Preprocessor took 28.27ms. Allocated memory is still 163.6MB. Free memory was 117.3MB in the beginning and 115.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:02:53,616 INFO L158 Benchmark]: RCFGBuilder took 385.00ms. Allocated memory is still 163.6MB. Free memory was 115.5MB in the beginning and 97.5MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 15:02:53,616 INFO L158 Benchmark]: TraceAbstraction took 5175.17ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 96.6MB in the beginning and 143.5MB in the end (delta: -46.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:02:53,617 INFO L158 Benchmark]: Witness Printer took 126.56ms. Allocated memory is still 197.1MB. Free memory was 143.5MB in the beginning and 139.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 15:02:53,619 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 163.6MB. Free memory is still 137.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.22ms. Allocated memory is still 163.6MB. Free memory was 130.7MB in the beginning and 119.3MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.53ms. Allocated memory is still 163.6MB. Free memory was 119.3MB in the beginning and 117.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.27ms. Allocated memory is still 163.6MB. Free memory was 117.3MB in the beginning and 115.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 385.00ms. Allocated memory is still 163.6MB. Free memory was 115.5MB in the beginning and 97.5MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5175.17ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 96.6MB in the beginning and 143.5MB in the end (delta: -46.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 126.56ms. Allocated memory is still 197.1MB. Free memory was 143.5MB in the beginning and 139.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 65 PlacesBefore, 4 PlacesAfterwards, 68 TransitionsBefore, 4 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 8 FixpointIterations, 63 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 0 ConcurrentYvCompositions, 3 ChoiceCompositions, 78 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 287 locations, 4 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: 5.0s, OverallIterations: 5, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 208 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 151 mSDsluCounter, 77 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 272 IncrementalHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 15 mSDtfsCounter, 272 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=4, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 46 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 168 SizeOfPredicates, 3 NumberOfNonLiveVariables, 338 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 90/198 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 15:02:53,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00c7ba-84d8-4768-b191-0ae00c08c55e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE