./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix009.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix009.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/bin/uautomizer-ug76WZFUDN --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 4dcfd24df13a4fc35e028ca53c41591d13aa2fa957261180f0dd9c1764b57d13 --- 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-6b4ec56 [2022-11-20 12:16:05,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:16:05,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:16:05,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:16:05,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:16:05,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:16:05,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:16:05,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:16:05,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:16:05,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:16:05,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:16:05,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:16:05,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:16:05,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:16:05,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:16:05,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:16:05,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:16:05,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:16:05,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:16:05,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:16:05,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:16:05,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:16:05,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:16:05,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:16:05,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:16:05,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:16:05,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:16:05,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:16:05,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:16:05,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:16:05,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:16:05,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:16:05,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:16:05,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:16:05,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:16:05,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:16:05,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:16:05,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:16:05,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:16:05,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:16:05,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:16:05,556 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 12:16:05,624 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:16:05,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:16:05,625 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:16:05,626 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:16:05,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:16:05,627 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:16:05,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:16:05,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:16:05,628 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:16:05,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:16:05,630 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:16:05,630 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:16:05,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:16:05,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:16:05,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:16:05,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:16:05,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:16:05,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:16:05,632 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 12:16:05,632 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:16:05,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:16:05,632 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:16:05,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:16:05,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:16:05,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:16:05,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:16:05,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:16:05,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:16:05,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:16:05,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:16:05,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:16:05,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:16:05,635 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:16:05,636 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:16:05,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:16:05,636 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_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dcfd24df13a4fc35e028ca53c41591d13aa2fa957261180f0dd9c1764b57d13 [2022-11-20 12:16:06,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:16:06,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:16:06,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:16:06,071 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:16:06,071 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:16:06,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/mix009.oepc.i [2022-11-20 12:16:09,601 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:16:09,941 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:16:09,942 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/sv-benchmarks/c/pthread-wmm/mix009.oepc.i [2022-11-20 12:16:09,962 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/bin/uautomizer-ug76WZFUDN/data/52492b140/b948f266c5b7451e8eb89e45dfe80247/FLAG8ce1a00ba [2022-11-20 12:16:09,987 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/bin/uautomizer-ug76WZFUDN/data/52492b140/b948f266c5b7451e8eb89e45dfe80247 [2022-11-20 12:16:09,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:16:09,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:16:09,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:16:09,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:16:10,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:16:10,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:16:09" (1/1) ... [2022-11-20 12:16:10,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31bb478c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10, skipping insertion in model container [2022-11-20 12:16:10,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:16:09" (1/1) ... [2022-11-20 12:16:10,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:16:10,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:16:10,318 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_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/sv-benchmarks/c/pthread-wmm/mix009.oepc.i[945,958] [2022-11-20 12:16:10,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:16:10,622 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:16:10,641 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_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/sv-benchmarks/c/pthread-wmm/mix009.oepc.i[945,958] [2022-11-20 12:16:10,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:16:10,783 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:16:10,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10 WrapperNode [2022-11-20 12:16:10,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:16:10,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:16:10,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:16:10,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:16:10,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,891 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 124 [2022-11-20 12:16:10,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:16:10,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:16:10,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:16:10,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:16:10,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,961 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:16:10,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:16:10,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:16:10,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:16:10,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:16:11,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:16:11,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:16:11,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:16:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:16:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:16:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:16:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:16:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:16:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 12:16:11,075 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 12:16:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 12:16:11,075 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 12:16:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:16:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:16:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:16:11,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:16:11,078 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:16:11,343 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:16:11,346 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:16:11,710 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:16:11,975 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:16:11,976 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:16:11,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:16:11 BoogieIcfgContainer [2022-11-20 12:16:11,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:16:11,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:16:11,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:16:11,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:16:11,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:16:09" (1/3) ... [2022-11-20 12:16:11,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3caff951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:16:11, skipping insertion in model container [2022-11-20 12:16:11,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (2/3) ... [2022-11-20 12:16:11,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3caff951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:16:11, skipping insertion in model container [2022-11-20 12:16:11,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:16:11" (3/3) ... [2022-11-20 12:16:11,993 INFO L112 eAbstractionObserver]: Analyzing ICFG mix009.oepc.i [2022-11-20 12:16:12,005 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:16:12,019 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:16:12,019 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 12:16:12,019 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:16:12,121 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 12:16:12,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 103 transitions, 216 flow [2022-11-20 12:16:12,258 INFO L130 PetriNetUnfolder]: 2/101 cut-off events. [2022-11-20 12:16:12,258 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:16:12,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 101 events. 2/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2022-11-20 12:16:12,265 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 103 transitions, 216 flow [2022-11-20 12:16:12,272 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 101 transitions, 208 flow [2022-11-20 12:16:12,293 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:16:12,301 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;@1af24854, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:16:12,301 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-20 12:16:12,324 INFO L130 PetriNetUnfolder]: 0/55 cut-off events. [2022-11-20 12:16:12,324 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:16:12,325 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:16:12,326 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] [2022-11-20 12:16:12,326 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 12:16:12,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:12,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1275772049, now seen corresponding path program 1 times [2022-11-20 12:16:12,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:16:12,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868964250] [2022-11-20 12:16:12,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:12,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:16:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:13,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:13,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:16:13,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868964250] [2022-11-20 12:16:13,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868964250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:13,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:13,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:16:13,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320207130] [2022-11-20 12:16:13,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:13,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:16:13,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:16:13,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:16:13,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:16:13,133 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 103 [2022-11-20 12:16:13,137 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 101 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2022-11-20 12:16:13,137 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:16:13,137 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 103 [2022-11-20 12:16:13,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:16:13,451 INFO L130 PetriNetUnfolder]: 68/337 cut-off events. [2022-11-20 12:16:13,452 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-20 12:16:13,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 337 events. 68/337 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1531 event pairs, 30 based on Foata normal form. 17/317 useless extension candidates. Maximal degree in co-relation 433. Up to 73 conditions per place. [2022-11-20 12:16:13,460 INFO L137 encePairwiseOnDemand]: 94/103 looper letters, 19 selfloop transitions, 3 changer transitions 2/107 dead transitions. [2022-11-20 12:16:13,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 107 transitions, 271 flow [2022-11-20 12:16:13,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:16:13,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:16:13,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2022-11-20 12:16:13,488 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9288025889967637 [2022-11-20 12:16:13,489 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 287 transitions. [2022-11-20 12:16:13,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 287 transitions. [2022-11-20 12:16:13,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:16:13,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 287 transitions. [2022-11-20 12:16:13,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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) [2022-11-20 12:16:13,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 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) [2022-11-20 12:16:13,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 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) [2022-11-20 12:16:13,517 INFO L175 Difference]: Start difference. First operand has 106 places, 101 transitions, 208 flow. Second operand 3 states and 287 transitions. [2022-11-20 12:16:13,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 107 transitions, 271 flow [2022-11-20 12:16:13,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 107 transitions, 268 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:16:13,531 INFO L231 Difference]: Finished difference. Result has 106 places, 98 transitions, 217 flow [2022-11-20 12:16:13,534 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=217, PETRI_PLACES=106, PETRI_TRANSITIONS=98} [2022-11-20 12:16:13,539 INFO L288 CegarLoopForPetriNet]: 106 programPoint places, 0 predicate places. [2022-11-20 12:16:13,542 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 98 transitions, 217 flow [2022-11-20 12:16:13,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2022-11-20 12:16:13,543 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:16:13,544 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] [2022-11-20 12:16:13,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:16:13,545 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 12:16:13,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:13,547 INFO L85 PathProgramCache]: Analyzing trace with hash 543684431, now seen corresponding path program 1 times [2022-11-20 12:16:13,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:16:13,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468359957] [2022-11-20 12:16:13,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:13,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:16:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:13,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:13,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:16:13,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468359957] [2022-11-20 12:16:13,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468359957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:13,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:13,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:16:13,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101386250] [2022-11-20 12:16:13,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:13,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:16:13,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:16:13,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:16:13,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:16:13,866 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 103 [2022-11-20 12:16:13,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 98 transitions, 217 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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) [2022-11-20 12:16:13,867 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:16:13,867 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 103 [2022-11-20 12:16:13,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:16:14,010 INFO L130 PetriNetUnfolder]: 59/313 cut-off events. [2022-11-20 12:16:14,010 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-20 12:16:14,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 313 events. 59/313 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1337 event pairs, 30 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 435. Up to 61 conditions per place. [2022-11-20 12:16:14,015 INFO L137 encePairwiseOnDemand]: 98/103 looper letters, 17 selfloop transitions, 3 changer transitions 0/103 dead transitions. [2022-11-20 12:16:14,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 103 transitions, 265 flow [2022-11-20 12:16:14,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:16:14,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 12:16:14,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 362 transitions. [2022-11-20 12:16:14,018 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8786407766990292 [2022-11-20 12:16:14,018 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 362 transitions. [2022-11-20 12:16:14,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 362 transitions. [2022-11-20 12:16:14,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:16:14,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 362 transitions. [2022-11-20 12:16:14,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.5) internal successors, (362), 4 states have internal predecessors, (362), 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) [2022-11-20 12:16:14,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 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) [2022-11-20 12:16:14,025 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 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) [2022-11-20 12:16:14,025 INFO L175 Difference]: Start difference. First operand has 106 places, 98 transitions, 217 flow. Second operand 4 states and 362 transitions. [2022-11-20 12:16:14,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 103 transitions, 265 flow [2022-11-20 12:16:14,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 103 transitions, 262 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:16:14,031 INFO L231 Difference]: Finished difference. Result has 106 places, 96 transitions, 212 flow [2022-11-20 12:16:14,032 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=106, PETRI_TRANSITIONS=96} [2022-11-20 12:16:14,033 INFO L288 CegarLoopForPetriNet]: 106 programPoint places, 0 predicate places. [2022-11-20 12:16:14,033 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 96 transitions, 212 flow [2022-11-20 12:16:14,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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) [2022-11-20 12:16:14,034 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:16:14,035 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] [2022-11-20 12:16:14,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:16:14,036 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 12:16:14,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:14,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1248447082, now seen corresponding path program 1 times [2022-11-20 12:16:14,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:16:14,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424371544] [2022-11-20 12:16:14,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:14,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:16:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:14,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:14,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:16:14,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424371544] [2022-11-20 12:16:14,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424371544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:14,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:14,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:16:14,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524738070] [2022-11-20 12:16:14,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:14,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:16:14,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:16:14,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:16:14,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:16:14,342 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 103 [2022-11-20 12:16:14,343 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 96 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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) [2022-11-20 12:16:14,343 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:16:14,343 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 103 [2022-11-20 12:16:14,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:16:14,526 INFO L130 PetriNetUnfolder]: 55/303 cut-off events. [2022-11-20 12:16:14,526 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-11-20 12:16:14,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 303 events. 55/303 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1240 event pairs, 30 based on Foata normal form. 6/289 useless extension candidates. Maximal degree in co-relation 409. Up to 61 conditions per place. [2022-11-20 12:16:14,528 INFO L137 encePairwiseOnDemand]: 98/103 looper letters, 0 selfloop transitions, 0 changer transitions 101/101 dead transitions. [2022-11-20 12:16:14,529 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 101 transitions, 256 flow [2022-11-20 12:16:14,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:16:14,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 12:16:14,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 360 transitions. [2022-11-20 12:16:14,531 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8737864077669902 [2022-11-20 12:16:14,531 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 360 transitions. [2022-11-20 12:16:14,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 360 transitions. [2022-11-20 12:16:14,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:16:14,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 360 transitions. [2022-11-20 12:16:14,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 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) [2022-11-20 12:16:14,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 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) [2022-11-20 12:16:14,538 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 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) [2022-11-20 12:16:14,538 INFO L175 Difference]: Start difference. First operand has 106 places, 96 transitions, 212 flow. Second operand 4 states and 360 transitions. [2022-11-20 12:16:14,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 101 transitions, 256 flow [2022-11-20 12:16:14,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 101 transitions, 249 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 12:16:14,544 INFO L231 Difference]: Finished difference. Result has 104 places, 0 transitions, 0 flow [2022-11-20 12:16:14,544 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=104, PETRI_TRANSITIONS=0} [2022-11-20 12:16:14,551 INFO L288 CegarLoopForPetriNet]: 106 programPoint places, -2 predicate places. [2022-11-20 12:16:14,551 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 0 transitions, 0 flow [2022-11-20 12:16:14,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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) [2022-11-20 12:16:14,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-20 12:16:14,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-20 12:16:14,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-20 12:16:14,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-20 12:16:14,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-11-20 12:16:14,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-11-20 12:16:14,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-20 12:16:14,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-20 12:16:14,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-20 12:16:14,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-20 12:16:14,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:16:14,564 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-20 12:16:14,573 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:16:14,574 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:16:14,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:16:14 BasicIcfg [2022-11-20 12:16:14,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:16:14,583 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:16:14,584 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:16:14,584 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:16:14,585 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:16:11" (3/4) ... [2022-11-20 12:16:14,588 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:16:14,594 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-20 12:16:14,595 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-20 12:16:14,603 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-20 12:16:14,603 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 12:16:14,604 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 12:16:14,604 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 12:16:14,673 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:16:14,673 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:16:14,674 INFO L158 Benchmark]: Toolchain (without parser) took 4680.78ms. Allocated memory is still 190.8MB. Free memory was 159.2MB in the beginning and 113.4MB in the end (delta: 45.8MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2022-11-20 12:16:14,674 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory was 97.3MB in the beginning and 97.2MB in the end (delta: 74.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:16:14,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 787.89ms. Allocated memory is still 190.8MB. Free memory was 159.2MB in the beginning and 144.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 12:16:14,676 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.02ms. Allocated memory is still 190.8MB. Free memory was 144.2MB in the beginning and 140.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:16:14,676 INFO L158 Benchmark]: Boogie Preprocessor took 71.57ms. Allocated memory is still 190.8MB. Free memory was 140.9MB in the beginning and 139.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:16:14,677 INFO L158 Benchmark]: RCFGBuilder took 1011.20ms. Allocated memory is still 190.8MB. Free memory was 139.7MB in the beginning and 107.3MB in the end (delta: 32.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-20 12:16:14,677 INFO L158 Benchmark]: TraceAbstraction took 2600.88ms. Allocated memory is still 190.8MB. Free memory was 107.3MB in the beginning and 116.5MB in the end (delta: -9.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:16:14,678 INFO L158 Benchmark]: Witness Printer took 89.96ms. Allocated memory is still 190.8MB. Free memory was 116.5MB in the beginning and 113.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:16:14,680 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory was 97.3MB in the beginning and 97.2MB in the end (delta: 74.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 787.89ms. Allocated memory is still 190.8MB. Free memory was 159.2MB in the beginning and 144.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.02ms. Allocated memory is still 190.8MB. Free memory was 144.2MB in the beginning and 140.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.57ms. Allocated memory is still 190.8MB. Free memory was 140.9MB in the beginning and 139.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1011.20ms. Allocated memory is still 190.8MB. Free memory was 139.7MB in the beginning and 107.3MB in the end (delta: 32.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2600.88ms. Allocated memory is still 190.8MB. Free memory was 107.3MB in the beginning and 116.5MB in the end (delta: -9.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 89.96ms. Allocated memory is still 190.8MB. Free memory was 116.5MB in the beginning and 113.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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: 807]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 807]: 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, 127 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 5 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=217occurred in iteration=1, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 176 NumberOfCodeBlocks, 176 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 471 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 12:16:14,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cad0af6-285d-4687-bbbd-ce6b6ab2847d/bin/uautomizer-ug76WZFUDN/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