./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe029_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe029_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef851e22a0a98929f1b90876fcac5ec793e10efa4691f239ca948c8dc39b94fd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:32:09,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:32:09,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:32:09,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:32:09,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:32:09,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:32:09,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:32:09,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:32:09,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:32:09,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:32:09,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:32:09,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:32:09,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:32:09,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:32:09,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:32:09,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:32:09,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:32:09,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:32:09,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:32:09,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:32:09,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:32:09,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:32:09,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:32:09,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:32:09,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:32:09,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:32:09,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:32:09,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:32:09,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:32:09,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:32:09,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:32:09,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:32:09,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:32:09,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:32:09,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:32:09,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:32:09,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:32:09,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:32:09,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:32:09,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:32:09,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:32:09,181 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 12:32:09,235 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:32:09,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:32:09,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:32:09,237 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:32:09,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:32:09,239 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:32:09,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:32:09,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:32:09,241 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:32:09,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:32:09,242 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:32:09,243 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:32:09,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:32:09,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:32:09,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:32:09,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:32:09,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:32:09,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:32:09,245 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 12:32:09,245 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:32:09,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:32:09,246 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:32:09,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:32:09,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:32:09,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:32:09,247 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:32:09,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:32:09,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:32:09,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:32:09,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:32:09,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:32:09,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:32:09,251 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:32:09,252 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:32:09,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:32:09,253 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_f2a360ee-5c32-4d13-84d2-bc81e027b016/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef851e22a0a98929f1b90876fcac5ec793e10efa4691f239ca948c8dc39b94fd [2022-11-16 12:32:09,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:32:09,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:32:09,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:32:09,665 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:32:09,666 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:32:09,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/safe029_tso.i [2022-11-16 12:32:09,768 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/bin/uautomizer-tPACEb0tL8/data/7a112fd9f/e0076861951b48db97bd83bb7152858f/FLAG0aa9db423 [2022-11-16 12:32:10,491 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:32:10,492 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/sv-benchmarks/c/pthread-wmm/safe029_tso.i [2022-11-16 12:32:10,517 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/bin/uautomizer-tPACEb0tL8/data/7a112fd9f/e0076861951b48db97bd83bb7152858f/FLAG0aa9db423 [2022-11-16 12:32:10,773 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/bin/uautomizer-tPACEb0tL8/data/7a112fd9f/e0076861951b48db97bd83bb7152858f [2022-11-16 12:32:10,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:32:10,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:32:10,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:32:10,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:32:10,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:32:10,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:32:10" (1/1) ... [2022-11-16 12:32:10,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17e821e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:10, skipping insertion in model container [2022-11-16 12:32:10,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:32:10" (1/1) ... [2022-11-16 12:32:10,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:32:10,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:32:11,126 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/sv-benchmarks/c/pthread-wmm/safe029_tso.i[945,958] [2022-11-16 12:32:11,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:32:11,345 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:32:11,371 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/sv-benchmarks/c/pthread-wmm/safe029_tso.i[945,958] [2022-11-16 12:32:11,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:32:11,499 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:32:11,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:11 WrapperNode [2022-11-16 12:32:11,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:32:11,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:32:11,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:32:11,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:32:11,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:11" (1/1) ... [2022-11-16 12:32:11,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:11" (1/1) ... [2022-11-16 12:32:11,586 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-11-16 12:32:11,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:32:11,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:32:11,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:32:11,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:32:11,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:11" (1/1) ... [2022-11-16 12:32:11,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:11" (1/1) ... [2022-11-16 12:32:11,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:11" (1/1) ... [2022-11-16 12:32:11,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:11" (1/1) ... [2022-11-16 12:32:11,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:11" (1/1) ... [2022-11-16 12:32:11,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:11" (1/1) ... [2022-11-16 12:32:11,641 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:11" (1/1) ... [2022-11-16 12:32:11,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:11" (1/1) ... [2022-11-16 12:32:11,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:32:11,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:32:11,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:32:11,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:32:11,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:11" (1/1) ... [2022-11-16 12:32:11,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:32:11,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:32:11,705 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:32:11,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:32:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:32:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:32:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:32:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:32:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:32:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 12:32:11,772 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 12:32:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 12:32:11,772 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 12:32:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:32:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:32:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:32:11,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:32:11,775 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:32:12,005 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:32:12,008 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:32:12,298 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:32:12,326 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:32:12,331 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:32:12,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:32:12 BoogieIcfgContainer [2022-11-16 12:32:12,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:32:12,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:32:12,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:32:12,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:32:12,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:32:10" (1/3) ... [2022-11-16 12:32:12,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1ebc08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:32:12, skipping insertion in model container [2022-11-16 12:32:12,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:11" (2/3) ... [2022-11-16 12:32:12,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1ebc08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:32:12, skipping insertion in model container [2022-11-16 12:32:12,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:32:12" (3/3) ... [2022-11-16 12:32:12,350 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_tso.i [2022-11-16 12:32:12,363 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:32:12,377 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:32:12,377 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-16 12:32:12,377 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:32:12,476 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:32:12,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 76 transitions, 162 flow [2022-11-16 12:32:12,612 INFO L130 PetriNetUnfolder]: 2/74 cut-off events. [2022-11-16 12:32:12,616 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:32:12,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 74 events. 2/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-11-16 12:32:12,624 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 76 transitions, 162 flow [2022-11-16 12:32:12,633 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 74 transitions, 154 flow [2022-11-16 12:32:12,662 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:32:12,673 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;@72eb3205, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:32:12,674 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-16 12:32:12,704 INFO L130 PetriNetUnfolder]: 0/29 cut-off events. [2022-11-16 12:32:12,704 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:32:12,704 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:32:12,705 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:12,706 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 12:32:12,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:12,716 INFO L85 PathProgramCache]: Analyzing trace with hash 890145935, now seen corresponding path program 1 times [2022-11-16 12:32:12,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:12,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830935564] [2022-11-16 12:32:12,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:12,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:13,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:13,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:13,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830935564] [2022-11-16 12:32:13,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830935564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:13,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:13,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:32:13,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821792834] [2022-11-16 12:32:13,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:13,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:13,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:13,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:13,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:32:13,183 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 76 [2022-11-16 12:32:13,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 74 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:13,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:32:13,187 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 76 [2022-11-16 12:32:13,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:32:13,301 INFO L130 PetriNetUnfolder]: 10/100 cut-off events. [2022-11-16 12:32:13,303 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:32:13,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 100 events. 10/100 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 215 event pairs, 0 based on Foata normal form. 9/99 useless extension candidates. Maximal degree in co-relation 109. Up to 26 conditions per place. [2022-11-16 12:32:13,308 INFO L137 encePairwiseOnDemand]: 67/76 looper letters, 9 selfloop transitions, 3 changer transitions 2/75 dead transitions. [2022-11-16 12:32:13,309 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 75 transitions, 187 flow [2022-11-16 12:32:13,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:13,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:32:13,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 211 transitions. [2022-11-16 12:32:13,327 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9254385964912281 [2022-11-16 12:32:13,328 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 211 transitions. [2022-11-16 12:32:13,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 211 transitions. [2022-11-16 12:32:13,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:32:13,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 211 transitions. [2022-11-16 12:32:13,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:13,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:13,345 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:13,347 INFO L175 Difference]: Start difference. First operand has 79 places, 74 transitions, 154 flow. Second operand 3 states and 211 transitions. [2022-11-16 12:32:13,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 75 transitions, 187 flow [2022-11-16 12:32:13,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 75 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:32:13,356 INFO L231 Difference]: Finished difference. Result has 79 places, 71 transitions, 163 flow [2022-11-16 12:32:13,358 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=79, PETRI_TRANSITIONS=71} [2022-11-16 12:32:13,363 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 0 predicate places. [2022-11-16 12:32:13,366 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 71 transitions, 163 flow [2022-11-16 12:32:13,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:13,367 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:32:13,367 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:13,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:32:13,369 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 12:32:13,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:13,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1748582457, now seen corresponding path program 1 times [2022-11-16 12:32:13,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:13,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224304363] [2022-11-16 12:32:13,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:13,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:13,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:13,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:13,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224304363] [2022-11-16 12:32:13,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224304363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:13,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:13,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:32:13,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544528693] [2022-11-16 12:32:13,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:13,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:32:13,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:13,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:32:13,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:32:13,633 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 76 [2022-11-16 12:32:13,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 71 transitions, 163 flow. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:13,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:32:13,635 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 76 [2022-11-16 12:32:13,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:32:13,702 INFO L130 PetriNetUnfolder]: 5/85 cut-off events. [2022-11-16 12:32:13,702 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-16 12:32:13,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 85 events. 5/85 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 124 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 97. Up to 14 conditions per place. [2022-11-16 12:32:13,720 INFO L137 encePairwiseOnDemand]: 71/76 looper letters, 7 selfloop transitions, 3 changer transitions 0/71 dead transitions. [2022-11-16 12:32:13,720 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 71 transitions, 181 flow [2022-11-16 12:32:13,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:32:13,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 12:32:13,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 264 transitions. [2022-11-16 12:32:13,723 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.868421052631579 [2022-11-16 12:32:13,724 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 264 transitions. [2022-11-16 12:32:13,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 264 transitions. [2022-11-16 12:32:13,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:32:13,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 264 transitions. [2022-11-16 12:32:13,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:13,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:13,729 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:13,730 INFO L175 Difference]: Start difference. First operand has 79 places, 71 transitions, 163 flow. Second operand 4 states and 264 transitions. [2022-11-16 12:32:13,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 71 transitions, 181 flow [2022-11-16 12:32:13,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 71 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:32:13,733 INFO L231 Difference]: Finished difference. Result has 79 places, 69 transitions, 158 flow [2022-11-16 12:32:13,733 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=158, PETRI_PLACES=79, PETRI_TRANSITIONS=69} [2022-11-16 12:32:13,734 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 0 predicate places. [2022-11-16 12:32:13,734 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 69 transitions, 158 flow [2022-11-16 12:32:13,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:13,748 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:32:13,749 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] [2022-11-16 12:32:13,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:32:13,749 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 12:32:13,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:13,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1270460066, now seen corresponding path program 1 times [2022-11-16 12:32:13,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:13,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796171723] [2022-11-16 12:32:13,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:13,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:13,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:13,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:13,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796171723] [2022-11-16 12:32:13,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796171723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:13,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:13,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:32:13,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391708269] [2022-11-16 12:32:13,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:13,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:32:13,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:13,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:32:13,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:32:13,953 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 76 [2022-11-16 12:32:13,954 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 69 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:13,954 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:32:13,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 76 [2022-11-16 12:32:13,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:32:14,018 INFO L130 PetriNetUnfolder]: 3/79 cut-off events. [2022-11-16 12:32:14,020 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-11-16 12:32:14,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 79 events. 3/79 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 83 event pairs, 0 based on Foata normal form. 4/81 useless extension candidates. Maximal degree in co-relation 81. Up to 8 conditions per place. [2022-11-16 12:32:14,023 INFO L137 encePairwiseOnDemand]: 71/76 looper letters, 0 selfloop transitions, 0 changer transitions 69/69 dead transitions. [2022-11-16 12:32:14,023 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 69 transitions, 172 flow [2022-11-16 12:32:14,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:32:14,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 12:32:14,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 262 transitions. [2022-11-16 12:32:14,034 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8618421052631579 [2022-11-16 12:32:14,038 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 262 transitions. [2022-11-16 12:32:14,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 262 transitions. [2022-11-16 12:32:14,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:32:14,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 262 transitions. [2022-11-16 12:32:14,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:14,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:14,048 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:14,049 INFO L175 Difference]: Start difference. First operand has 79 places, 69 transitions, 158 flow. Second operand 4 states and 262 transitions. [2022-11-16 12:32:14,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 69 transitions, 172 flow [2022-11-16 12:32:14,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 69 transitions, 165 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 12:32:14,053 INFO L231 Difference]: Finished difference. Result has 77 places, 0 transitions, 0 flow [2022-11-16 12:32:14,054 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=77, PETRI_TRANSITIONS=0} [2022-11-16 12:32:14,055 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, -2 predicate places. [2022-11-16 12:32:14,056 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 0 transitions, 0 flow [2022-11-16 12:32:14,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:14,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-16 12:32:14,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-16 12:32:14,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-16 12:32:14,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-16 12:32:14,094 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-11-16 12:32:14,094 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-11-16 12:32:14,095 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-16 12:32:14,095 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-16 12:32:14,095 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-16 12:32:14,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-16 12:32:14,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:32:14,096 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-16 12:32:14,104 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:32:14,104 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:32:14,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:32:14 BasicIcfg [2022-11-16 12:32:14,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:32:14,119 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:32:14,119 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:32:14,119 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:32:14,120 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:32:12" (3/4) ... [2022-11-16 12:32:14,123 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:32:14,131 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-16 12:32:14,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-16 12:32:14,139 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-16 12:32:14,140 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 12:32:14,140 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:32:14,140 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:32:14,195 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:32:14,195 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:32:14,196 INFO L158 Benchmark]: Toolchain (without parser) took 3418.15ms. Allocated memory is still 125.8MB. Free memory was 91.3MB in the beginning and 98.2MB in the end (delta: -6.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:32:14,196 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 88.1MB. Free memory was 60.0MB in the beginning and 60.0MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:32:14,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 716.90ms. Allocated memory is still 125.8MB. Free memory was 91.3MB in the beginning and 92.8MB in the end (delta: -1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:32:14,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.34ms. Allocated memory is still 125.8MB. Free memory was 92.8MB in the beginning and 90.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:32:14,198 INFO L158 Benchmark]: Boogie Preprocessor took 65.30ms. Allocated memory is still 125.8MB. Free memory was 90.7MB in the beginning and 89.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:32:14,202 INFO L158 Benchmark]: RCFGBuilder took 683.32ms. Allocated memory is still 125.8MB. Free memory was 89.5MB in the beginning and 76.1MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 12:32:14,203 INFO L158 Benchmark]: TraceAbstraction took 1775.67ms. Allocated memory is still 125.8MB. Free memory was 75.2MB in the beginning and 100.3MB in the end (delta: -25.1MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2022-11-16 12:32:14,206 INFO L158 Benchmark]: Witness Printer took 76.73ms. Allocated memory is still 125.8MB. Free memory was 100.3MB in the beginning and 98.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:32:14,209 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 88.1MB. Free memory was 60.0MB in the beginning and 60.0MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 716.90ms. Allocated memory is still 125.8MB. Free memory was 91.3MB in the beginning and 92.8MB in the end (delta: -1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.34ms. Allocated memory is still 125.8MB. Free memory was 92.8MB in the beginning and 90.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.30ms. Allocated memory is still 125.8MB. Free memory was 90.7MB in the beginning and 89.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 683.32ms. Allocated memory is still 125.8MB. Free memory was 89.5MB in the beginning and 76.1MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1775.67ms. Allocated memory is still 125.8MB. Free memory was 75.2MB in the beginning and 100.3MB in the end (delta: -25.1MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. * Witness Printer took 76.73ms. Allocated memory is still 125.8MB. Free memory was 100.3MB in the beginning and 98.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 726]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 726]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 741]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 741]: 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, 95 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: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 5 mSDtfsCounter, 43 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=163occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 243 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! [2022-11-16 12:32:14,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2a360ee-5c32-4d13-84d2-bc81e027b016/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE