./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe010_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_988147c0-a09d-4836-b6f3-25ac88c01fef/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988147c0-a09d-4836-b6f3-25ac88c01fef/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_988147c0-a09d-4836-b6f3-25ac88c01fef/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988147c0-a09d-4836-b6f3-25ac88c01fef/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe010_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988147c0-a09d-4836-b6f3-25ac88c01fef/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_988147c0-a09d-4836-b6f3-25ac88c01fef/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 0b6ad05084ff5d70a22ef215b05587fd59d1867832386446579778aa62df8d63 --- 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 10:31:49,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:31:49,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:31:49,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:31:49,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:31:49,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:31:49,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:31:49,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:31:49,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:31:49,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:31:49,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:31:49,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:31:49,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:31:49,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:31:49,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:31:49,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:31:49,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:31:49,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:31:49,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:31:49,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:31:49,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:31:49,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:31:49,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:31:49,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:31:49,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:31:49,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:31:49,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:31:49,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:31:49,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:31:49,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:31:49,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:31:49,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:31:49,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:31:49,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:31:49,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:31:49,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:31:49,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:31:49,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:31:49,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:31:49,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:31:49,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:31:49,480 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988147c0-a09d-4836-b6f3-25ac88c01fef/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 10:31:49,499 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:31:49,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:31:49,500 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:31:49,500 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:31:49,500 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:31:49,501 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:31:49,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:31:49,502 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:31:49,502 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:31:49,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:31:49,502 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:31:49,502 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:31:49,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:31:49,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:31:49,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:31:49,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:31:49,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:31:49,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:31:49,504 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 10:31:49,504 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:31:49,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:31:49,504 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:31:49,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:31:49,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:31:49,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:31:49,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:31:49,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:31:49,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:31:49,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:31:49,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:31:49,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:31:49,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:31:49,506 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:31:49,506 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:31:49,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:31:49,507 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_988147c0-a09d-4836-b6f3-25ac88c01fef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988147c0-a09d-4836-b6f3-25ac88c01fef/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b6ad05084ff5d70a22ef215b05587fd59d1867832386446579778aa62df8d63 [2022-11-20 10:31:49,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:31:49,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:31:49,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:31:49,762 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:31:49,763 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:31:49,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988147c0-a09d-4836-b6f3-25ac88c01fef/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/safe010_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-20 10:31:52,961 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:31:53,293 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:31:53,303 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988147c0-a09d-4836-b6f3-25ac88c01fef/sv-benchmarks/c/pthread-wmm/safe010_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-20 10:31:53,324 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988147c0-a09d-4836-b6f3-25ac88c01fef/bin/uautomizer-ug76WZFUDN/data/7930465d7/40dcbfedae4442ba8d32bbb4305a023a/FLAG3bdcb6edd [2022-11-20 10:31:53,353 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988147c0-a09d-4836-b6f3-25ac88c01fef/bin/uautomizer-ug76WZFUDN/data/7930465d7/40dcbfedae4442ba8d32bbb4305a023a [2022-11-20 10:31:53,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:31:53,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:31:53,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:31:53,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:31:53,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:31:53,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:31:53" (1/1) ... [2022-11-20 10:31:53,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6cf25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:53, skipping insertion in model container [2022-11-20 10:31:53,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:31:53" (1/1) ... [2022-11-20 10:31:53,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:31:53,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:31:53,579 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_988147c0-a09d-4836-b6f3-25ac88c01fef/sv-benchmarks/c/pthread-wmm/safe010_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[996,1009] [2022-11-20 10:31:53,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:31:53,876 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:31:53,892 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_988147c0-a09d-4836-b6f3-25ac88c01fef/sv-benchmarks/c/pthread-wmm/safe010_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[996,1009] [2022-11-20 10:31:53,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:31:54,032 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:31:54,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:54 WrapperNode [2022-11-20 10:31:54,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:31:54,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:31:54,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:31:54,035 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:31:54,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:54" (1/1) ... [2022-11-20 10:31:54,079 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:54" (1/1) ... [2022-11-20 10:31:54,128 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 129 [2022-11-20 10:31:54,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:31:54,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:31:54,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:31:54,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:31:54,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:54" (1/1) ... [2022-11-20 10:31:54,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:54" (1/1) ... [2022-11-20 10:31:54,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:54" (1/1) ... [2022-11-20 10:31:54,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:54" (1/1) ... [2022-11-20 10:31:54,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:54" (1/1) ... [2022-11-20 10:31:54,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:54" (1/1) ... [2022-11-20 10:31:54,183 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:54" (1/1) ... [2022-11-20 10:31:54,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:54" (1/1) ... [2022-11-20 10:31:54,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:31:54,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:31:54,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:31:54,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:31:54,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:54" (1/1) ... [2022-11-20 10:31:54,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:31:54,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988147c0-a09d-4836-b6f3-25ac88c01fef/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:31:54,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988147c0-a09d-4836-b6f3-25ac88c01fef/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:31:54,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988147c0-a09d-4836-b6f3-25ac88c01fef/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:31:54,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:31:54,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 10:31:54,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:31:54,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:31:54,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:31:54,296 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 10:31:54,297 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 10:31:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 10:31:54,298 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 10:31:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:31:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 10:31:54,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:31:54,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:31:54,300 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 10:31:54,511 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:31:54,514 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:31:54,857 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:31:55,149 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:31:55,149 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:31:55,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:31:55 BoogieIcfgContainer [2022-11-20 10:31:55,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:31:55,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:31:55,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:31:55,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:31:55,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:31:53" (1/3) ... [2022-11-20 10:31:55,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca7e813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:31:55, skipping insertion in model container [2022-11-20 10:31:55,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:54" (2/3) ... [2022-11-20 10:31:55,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca7e813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:31:55, skipping insertion in model container [2022-11-20 10:31:55,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:31:55" (3/3) ... [2022-11-20 10:31:55,163 INFO L112 eAbstractionObserver]: Analyzing ICFG safe010_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-20 10:31:55,173 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:31:55,204 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:31:55,204 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 10:31:55,204 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:31:55,367 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 10:31:55,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 96 transitions, 202 flow [2022-11-20 10:31:55,511 INFO L130 PetriNetUnfolder]: 2/94 cut-off events. [2022-11-20 10:31:55,512 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:31:55,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2022-11-20 10:31:55,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 96 transitions, 202 flow [2022-11-20 10:31:55,525 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 94 transitions, 194 flow [2022-11-20 10:31:55,546 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:31:55,554 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;@1a339ff7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:31:55,554 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-20 10:31:55,570 INFO L130 PetriNetUnfolder]: 0/48 cut-off events. [2022-11-20 10:31:55,570 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:31:55,570 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:31:55,571 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] [2022-11-20 10:31:55,572 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 10:31:55,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:31:55,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1586840693, now seen corresponding path program 1 times [2022-11-20 10:31:55,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:31:55,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806459981] [2022-11-20 10:31:55,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:31:55,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:31:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:56,056 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 10:31:56,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:31:56,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806459981] [2022-11-20 10:31:56,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806459981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:31:56,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:31:56,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:31:56,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082836581] [2022-11-20 10:31:56,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:31:56,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:31:56,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:31:56,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:31:56,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:31:56,107 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 96 [2022-11-20 10:31:56,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 94 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 10:31:56,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:31:56,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 96 [2022-11-20 10:31:56,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:31:56,282 INFO L130 PetriNetUnfolder]: 72/363 cut-off events. [2022-11-20 10:31:56,282 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-20 10:31:56,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 363 events. 72/363 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1748 event pairs, 25 based on Foata normal form. 18/343 useless extension candidates. Maximal degree in co-relation 471. Up to 89 conditions per place. [2022-11-20 10:31:56,287 INFO L137 encePairwiseOnDemand]: 87/96 looper letters, 19 selfloop transitions, 3 changer transitions 2/100 dead transitions. [2022-11-20 10:31:56,288 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 100 transitions, 257 flow [2022-11-20 10:31:56,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:31:56,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:31:56,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2022-11-20 10:31:56,303 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9236111111111112 [2022-11-20 10:31:56,304 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 266 transitions. [2022-11-20 10:31:56,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 266 transitions. [2022-11-20 10:31:56,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:31:56,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 266 transitions. [2022-11-20 10:31:56,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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 10:31:56,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 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 10:31:56,319 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 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 10:31:56,321 INFO L175 Difference]: Start difference. First operand has 99 places, 94 transitions, 194 flow. Second operand 3 states and 266 transitions. [2022-11-20 10:31:56,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 100 transitions, 257 flow [2022-11-20 10:31:56,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 100 transitions, 254 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:31:56,328 INFO L231 Difference]: Finished difference. Result has 99 places, 91 transitions, 203 flow [2022-11-20 10:31:56,331 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=99, PETRI_TRANSITIONS=91} [2022-11-20 10:31:56,335 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, 0 predicate places. [2022-11-20 10:31:56,335 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 91 transitions, 203 flow [2022-11-20 10:31:56,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 10:31:56,336 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:31:56,336 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:31:56,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:31:56,337 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 10:31:56,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:31:56,338 INFO L85 PathProgramCache]: Analyzing trace with hash -982348218, now seen corresponding path program 1 times [2022-11-20 10:31:56,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:31:56,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877976550] [2022-11-20 10:31:56,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:31:56,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:31:56,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:56,647 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 10:31:56,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:31:56,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877976550] [2022-11-20 10:31:56,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877976550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:31:56,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:31:56,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:31:56,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258855236] [2022-11-20 10:31:56,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:31:56,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:31:56,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:31:56,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:31:56,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:31:56,652 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 96 [2022-11-20 10:31:56,653 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 91 transitions, 203 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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 10:31:56,653 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:31:56,654 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 96 [2022-11-20 10:31:56,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:31:56,776 INFO L130 PetriNetUnfolder]: 59/330 cut-off events. [2022-11-20 10:31:56,776 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-11-20 10:31:56,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 511 conditions, 330 events. 59/330 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1485 event pairs, 25 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 463. Up to 63 conditions per place. [2022-11-20 10:31:56,780 INFO L137 encePairwiseOnDemand]: 91/96 looper letters, 17 selfloop transitions, 3 changer transitions 0/96 dead transitions. [2022-11-20 10:31:56,780 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 96 transitions, 251 flow [2022-11-20 10:31:56,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:31:56,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 10:31:56,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 334 transitions. [2022-11-20 10:31:56,784 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8697916666666666 [2022-11-20 10:31:56,784 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 334 transitions. [2022-11-20 10:31:56,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 334 transitions. [2022-11-20 10:31:56,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:31:56,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 334 transitions. [2022-11-20 10:31:56,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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 10:31:56,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 96.0) internal successors, (480), 5 states have internal predecessors, (480), 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 10:31:56,789 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 96.0) internal successors, (480), 5 states have internal predecessors, (480), 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 10:31:56,789 INFO L175 Difference]: Start difference. First operand has 99 places, 91 transitions, 203 flow. Second operand 4 states and 334 transitions. [2022-11-20 10:31:56,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 96 transitions, 251 flow [2022-11-20 10:31:56,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 96 transitions, 248 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:31:56,792 INFO L231 Difference]: Finished difference. Result has 99 places, 89 transitions, 198 flow [2022-11-20 10:31:56,793 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=198, PETRI_PLACES=99, PETRI_TRANSITIONS=89} [2022-11-20 10:31:56,793 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, 0 predicate places. [2022-11-20 10:31:56,794 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 89 transitions, 198 flow [2022-11-20 10:31:56,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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 10:31:56,794 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:31:56,795 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] [2022-11-20 10:31:56,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:31:56,795 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 10:31:56,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:31:56,796 INFO L85 PathProgramCache]: Analyzing trace with hash -982348217, now seen corresponding path program 1 times [2022-11-20 10:31:56,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:31:56,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400685866] [2022-11-20 10:31:56,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:31:56,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:31:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:31:56,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:31:56,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:31:56,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400685866] [2022-11-20 10:31:56,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400685866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:31:56,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:31:56,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:31:56,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108527531] [2022-11-20 10:31:56,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:31:56,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:31:56,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:31:56,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:31:56,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:31:56,958 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 96 [2022-11-20 10:31:56,958 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 89 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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 10:31:56,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:31:56,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 96 [2022-11-20 10:31:56,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:31:57,112 INFO L130 PetriNetUnfolder]: 53/316 cut-off events. [2022-11-20 10:31:57,113 INFO L131 PetriNetUnfolder]: For 54/54 co-relation queries the response was YES. [2022-11-20 10:31:57,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 316 events. 53/316 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1387 event pairs, 25 based on Foata normal form. 8/307 useless extension candidates. Maximal degree in co-relation 427. Up to 53 conditions per place. [2022-11-20 10:31:57,115 INFO L137 encePairwiseOnDemand]: 91/96 looper letters, 0 selfloop transitions, 0 changer transitions 94/94 dead transitions. [2022-11-20 10:31:57,115 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 94 transitions, 242 flow [2022-11-20 10:31:57,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:31:57,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 10:31:57,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 332 transitions. [2022-11-20 10:31:57,118 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8645833333333334 [2022-11-20 10:31:57,118 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 332 transitions. [2022-11-20 10:31:57,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 332 transitions. [2022-11-20 10:31:57,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:31:57,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 332 transitions. [2022-11-20 10:31:57,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 10:31:57,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 96.0) internal successors, (480), 5 states have internal predecessors, (480), 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 10:31:57,122 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 96.0) internal successors, (480), 5 states have internal predecessors, (480), 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 10:31:57,122 INFO L175 Difference]: Start difference. First operand has 99 places, 89 transitions, 198 flow. Second operand 4 states and 332 transitions. [2022-11-20 10:31:57,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 94 transitions, 242 flow [2022-11-20 10:31:57,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 94 transitions, 235 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 10:31:57,125 INFO L231 Difference]: Finished difference. Result has 97 places, 0 transitions, 0 flow [2022-11-20 10:31:57,125 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=97, PETRI_TRANSITIONS=0} [2022-11-20 10:31:57,127 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -2 predicate places. [2022-11-20 10:31:57,128 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 0 transitions, 0 flow [2022-11-20 10:31:57,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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 10:31:57,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-20 10:31:57,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-20 10:31:57,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-20 10:31:57,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-20 10:31:57,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-11-20 10:31:57,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-11-20 10:31:57,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-20 10:31:57,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-20 10:31:57,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-20 10:31:57,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-20 10:31:57,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:31:57,142 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-20 10:31:57,149 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 10:31:57,149 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:31:57,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:31:57 BasicIcfg [2022-11-20 10:31:57,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:31:57,157 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:31:57,157 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:31:57,157 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:31:57,158 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:31:55" (3/4) ... [2022-11-20 10:31:57,160 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 10:31:57,166 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-20 10:31:57,166 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-20 10:31:57,171 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2022-11-20 10:31:57,171 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-20 10:31:57,171 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 10:31:57,172 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:31:57,211 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988147c0-a09d-4836-b6f3-25ac88c01fef/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:31:57,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:31:57,212 INFO L158 Benchmark]: Toolchain (without parser) took 3852.78ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 116.4MB in the beginning and 84.7MB in the end (delta: 31.6MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. [2022-11-20 10:31:57,213 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory is still 66.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:31:57,213 INFO L158 Benchmark]: CACSL2BoogieTranslator took 670.30ms. Allocated memory is still 148.9MB. Free memory was 115.8MB in the beginning and 93.6MB in the end (delta: 22.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-20 10:31:57,213 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.51ms. Allocated memory is still 148.9MB. Free memory was 93.6MB in the beginning and 90.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 10:31:57,214 INFO L158 Benchmark]: Boogie Preprocessor took 62.29ms. Allocated memory is still 148.9MB. Free memory was 90.6MB in the beginning and 89.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:31:57,214 INFO L158 Benchmark]: RCFGBuilder took 959.13ms. Allocated memory is still 148.9MB. Free memory was 89.1MB in the beginning and 57.0MB in the end (delta: 32.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-20 10:31:57,215 INFO L158 Benchmark]: TraceAbstraction took 2001.37ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 56.5MB in the beginning and 87.9MB in the end (delta: -31.4MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2022-11-20 10:31:57,215 INFO L158 Benchmark]: Witness Printer took 54.50ms. Allocated memory is still 188.7MB. Free memory was 86.8MB in the beginning and 84.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:31:57,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory is still 66.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 670.30ms. Allocated memory is still 148.9MB. Free memory was 115.8MB in the beginning and 93.6MB in the end (delta: 22.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.51ms. Allocated memory is still 148.9MB. Free memory was 93.6MB in the beginning and 90.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.29ms. Allocated memory is still 148.9MB. Free memory was 90.6MB in the beginning and 89.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 959.13ms. Allocated memory is still 148.9MB. Free memory was 89.1MB in the beginning and 57.0MB in the end (delta: 32.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2001.37ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 56.5MB in the beginning and 87.9MB in the end (delta: -31.4MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Witness Printer took 54.50ms. Allocated memory is still 188.7MB. Free memory was 86.8MB in the beginning and 84.7MB 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: 757]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 757]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: 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, 117 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: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s 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=203occurred 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, 0.7s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 411 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 10:31:57,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988147c0-a09d-4836-b6f3-25ac88c01fef/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