./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32c520a6-4652-423d-8436-9874a0456917/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32c520a6-4652-423d-8436-9874a0456917/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_32c520a6-4652-423d-8436-9874a0456917/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32c520a6-4652-423d-8436-9874a0456917/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32c520a6-4652-423d-8436-9874a0456917/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32c520a6-4652-423d-8436-9874a0456917/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eab672eda1edfc97284913525627300d4c299ae27e8726a3a4858e3cefa92c8f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:04:07,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:04:07,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:04:07,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:04:07,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:04:07,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:04:07,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:04:07,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:04:07,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:04:07,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:04:07,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:04:07,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:04:07,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:04:07,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:04:07,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:04:07,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:04:07,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:04:07,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:04:07,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:04:07,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:04:07,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:04:07,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:04:07,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:04:07,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:04:07,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:04:07,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:04:07,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:04:07,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:04:07,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:04:07,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:04:07,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:04:07,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:04:07,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:04:07,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:04:07,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:04:07,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:04:07,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:04:07,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:04:07,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:04:07,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:04:07,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:04:07,655 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32c520a6-4652-423d-8436-9874a0456917/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 12:04:07,685 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:04:07,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:04:07,686 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:04:07,686 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:04:07,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:04:07,687 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:04:07,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:04:07,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:04:07,689 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:04:07,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:04:07,690 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:04:07,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:04:07,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:04:07,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:04:07,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:04:07,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:04:07,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:04:07,692 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:04:07,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:04:07,692 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:04:07,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:04:07,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:04:07,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:04:07,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:04:07,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:04:07,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:04:07,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:04:07,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:04:07,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:04:07,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:04:07,696 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:04:07,696 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:04:07,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:04:07,696 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_32c520a6-4652-423d-8436-9874a0456917/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32c520a6-4652-423d-8436-9874a0456917/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eab672eda1edfc97284913525627300d4c299ae27e8726a3a4858e3cefa92c8f [2022-11-20 12:04:08,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:04:08,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:04:08,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:04:08,064 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:04:08,064 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:04:08,066 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32c520a6-4652-423d-8436-9874a0456917/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2022-11-20 12:04:11,707 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:04:12,016 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:04:12,016 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32c520a6-4652-423d-8436-9874a0456917/sv-benchmarks/c/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2022-11-20 12:04:12,031 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32c520a6-4652-423d-8436-9874a0456917/bin/uautomizer-ug76WZFUDN/data/f76b7a709/21e12e30c7df48819ade70a6149cbc63/FLAG9eea1edb4 [2022-11-20 12:04:12,048 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32c520a6-4652-423d-8436-9874a0456917/bin/uautomizer-ug76WZFUDN/data/f76b7a709/21e12e30c7df48819ade70a6149cbc63 [2022-11-20 12:04:12,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:04:12,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:04:12,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:04:12,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:04:12,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:04:12,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:04:12" (1/1) ... [2022-11-20 12:04:12,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@497f68ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:12, skipping insertion in model container [2022-11-20 12:04:12,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:04:12" (1/1) ... [2022-11-20 12:04:12,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:04:12,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:04:12,317 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_32c520a6-4652-423d-8436-9874a0456917/sv-benchmarks/c/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i[1129,1142] [2022-11-20 12:04:12,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:04:12,631 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:04:12,651 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_32c520a6-4652-423d-8436-9874a0456917/sv-benchmarks/c/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i[1129,1142] [2022-11-20 12:04:12,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:04:12,780 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:04:12,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:12 WrapperNode [2022-11-20 12:04:12,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:04:12,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:04:12,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:04:12,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:04:12,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:12" (1/1) ... [2022-11-20 12:04:12,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:12" (1/1) ... [2022-11-20 12:04:12,869 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53 [2022-11-20 12:04:12,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:04:12,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:04:12,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:04:12,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:04:12,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:12" (1/1) ... [2022-11-20 12:04:12,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:12" (1/1) ... [2022-11-20 12:04:12,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:12" (1/1) ... [2022-11-20 12:04:12,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:12" (1/1) ... [2022-11-20 12:04:12,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:12" (1/1) ... [2022-11-20 12:04:12,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:12" (1/1) ... [2022-11-20 12:04:12,921 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:12" (1/1) ... [2022-11-20 12:04:12,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:12" (1/1) ... [2022-11-20 12:04:12,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:04:12,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:04:12,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:04:12,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:04:12,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:12" (1/1) ... [2022-11-20 12:04:12,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:04:12,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32c520a6-4652-423d-8436-9874a0456917/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:04:12,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32c520a6-4652-423d-8436-9874a0456917/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:04:13,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32c520a6-4652-423d-8436-9874a0456917/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:04:13,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:04:13,044 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 12:04:13,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:04:13,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:04:13,045 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 12:04:13,045 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 12:04:13,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:04:13,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:04:13,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:04:13,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:04:13,049 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:04:13,300 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:04:13,303 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:04:13,565 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:04:13,575 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:04:13,575 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:04:13,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:04:13 BoogieIcfgContainer [2022-11-20 12:04:13,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:04:13,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:04:13,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:04:13,594 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:04:13,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:04:12" (1/3) ... [2022-11-20 12:04:13,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ee03ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:04:13, skipping insertion in model container [2022-11-20 12:04:13,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:12" (2/3) ... [2022-11-20 12:04:13,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ee03ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:04:13, skipping insertion in model container [2022-11-20 12:04:13,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:04:13" (3/3) ... [2022-11-20 12:04:13,598 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2022-11-20 12:04:13,627 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:04:13,637 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:04:13,637 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:04:13,637 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:04:13,692 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 12:04:13,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 147 flow [2022-11-20 12:04:13,788 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-11-20 12:04:13,788 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:04:13,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 70 events. 1/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2022-11-20 12:04:13,794 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 71 transitions, 147 flow [2022-11-20 12:04:13,798 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 58 transitions, 119 flow [2022-11-20 12:04:13,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:04:13,819 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;@54f5717b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:04:13,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 12:04:13,843 INFO L130 PetriNetUnfolder]: 0/57 cut-off events. [2022-11-20 12:04:13,844 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:04:13,844 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:13,845 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] [2022-11-20 12:04:13,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-20 12:04:13,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:13,853 INFO L85 PathProgramCache]: Analyzing trace with hash 534822066, now seen corresponding path program 1 times [2022-11-20 12:04:13,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:13,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913039725] [2022-11-20 12:04:13,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:13,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:14,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:14,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:14,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913039725] [2022-11-20 12:04:14,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913039725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:14,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:14,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:04:14,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589460462] [2022-11-20 12:04:14,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:14,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:04:14,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:14,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:04:14,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:04:14,552 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 71 [2022-11-20 12:04:14,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:14,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:14,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 71 [2022-11-20 12:04:14,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:14,697 INFO L130 PetriNetUnfolder]: 2/87 cut-off events. [2022-11-20 12:04:14,698 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 12:04:14,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 87 events. 2/87 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 151 event pairs, 0 based on Foata normal form. 3/90 useless extension candidates. Maximal degree in co-relation 74. Up to 9 conditions per place. [2022-11-20 12:04:14,700 INFO L137 encePairwiseOnDemand]: 66/71 looper letters, 6 selfloop transitions, 2 changer transitions 8/66 dead transitions. [2022-11-20 12:04:14,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 66 transitions, 167 flow [2022-11-20 12:04:14,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:04:14,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 12:04:14,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 438 transitions. [2022-11-20 12:04:14,724 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8812877263581489 [2022-11-20 12:04:14,725 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 438 transitions. [2022-11-20 12:04:14,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 438 transitions. [2022-11-20 12:04:14,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:14,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 438 transitions. [2022-11-20 12:04:14,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 62.57142857142857) internal successors, (438), 7 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:14,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:14,746 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:14,749 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 119 flow. Second operand 7 states and 438 transitions. [2022-11-20 12:04:14,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 66 transitions, 167 flow [2022-11-20 12:04:14,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 66 transitions, 166 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:04:14,757 INFO L231 Difference]: Finished difference. Result has 72 places, 58 transitions, 134 flow [2022-11-20 12:04:14,764 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=134, PETRI_PLACES=72, PETRI_TRANSITIONS=58} [2022-11-20 12:04:14,771 INFO L288 CegarLoopForPetriNet]: 62 programPoint places, 10 predicate places. [2022-11-20 12:04:14,771 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 58 transitions, 134 flow [2022-11-20 12:04:14,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:14,772 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:14,772 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] [2022-11-20 12:04:14,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:04:14,774 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-20 12:04:14,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:14,776 INFO L85 PathProgramCache]: Analyzing trace with hash -381449297, now seen corresponding path program 1 times [2022-11-20 12:04:14,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:14,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072450892] [2022-11-20 12:04:14,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:14,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:15,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:15,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:15,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072450892] [2022-11-20 12:04:15,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072450892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:15,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:15,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:04:15,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132886631] [2022-11-20 12:04:15,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:15,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:15,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:15,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:15,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:15,106 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 71 [2022-11-20 12:04:15,106 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 58 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:15,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:15,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 71 [2022-11-20 12:04:15,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:15,183 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-11-20 12:04:15,183 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-20 12:04:15,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 82 events. 2/82 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 6/88 useless extension candidates. Maximal degree in co-relation 113. Up to 13 conditions per place. [2022-11-20 12:04:15,185 INFO L137 encePairwiseOnDemand]: 65/71 looper letters, 10 selfloop transitions, 6 changer transitions 1/60 dead transitions. [2022-11-20 12:04:15,185 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 60 transitions, 172 flow [2022-11-20 12:04:15,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:15,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:15,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2022-11-20 12:04:15,188 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8262910798122066 [2022-11-20 12:04:15,188 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 176 transitions. [2022-11-20 12:04:15,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 176 transitions. [2022-11-20 12:04:15,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:15,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 176 transitions. [2022-11-20 12:04:15,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:15,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:15,192 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:15,193 INFO L175 Difference]: Start difference. First operand has 72 places, 58 transitions, 134 flow. Second operand 3 states and 176 transitions. [2022-11-20 12:04:15,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 60 transitions, 172 flow [2022-11-20 12:04:15,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 60 transitions, 162 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-11-20 12:04:15,196 INFO L231 Difference]: Finished difference. Result has 66 places, 59 transitions, 146 flow [2022-11-20 12:04:15,197 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=66, PETRI_TRANSITIONS=59} [2022-11-20 12:04:15,198 INFO L288 CegarLoopForPetriNet]: 62 programPoint places, 4 predicate places. [2022-11-20 12:04:15,198 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 59 transitions, 146 flow [2022-11-20 12:04:15,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:15,199 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:15,199 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] [2022-11-20 12:04:15,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:04:15,200 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-20 12:04:15,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:15,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1689205470, now seen corresponding path program 1 times [2022-11-20 12:04:15,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:15,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932300351] [2022-11-20 12:04:15,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:15,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:15,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:15,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:15,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932300351] [2022-11-20 12:04:15,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932300351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:15,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:15,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:04:15,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349048513] [2022-11-20 12:04:15,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:15,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:04:15,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:15,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:04:15,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:04:15,751 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 71 [2022-11-20 12:04:15,752 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 146 flow. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:15,753 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:15,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 71 [2022-11-20 12:04:15,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:15,877 INFO L130 PetriNetUnfolder]: 1/53 cut-off events. [2022-11-20 12:04:15,877 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-20 12:04:15,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 53 events. 1/53 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 3/56 useless extension candidates. Maximal degree in co-relation 70. Up to 8 conditions per place. [2022-11-20 12:04:15,879 INFO L137 encePairwiseOnDemand]: 67/71 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2022-11-20 12:04:15,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 49 transitions, 157 flow [2022-11-20 12:04:15,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:04:15,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 12:04:15,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 252 transitions. [2022-11-20 12:04:15,883 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7098591549295775 [2022-11-20 12:04:15,883 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 252 transitions. [2022-11-20 12:04:15,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 252 transitions. [2022-11-20 12:04:15,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:15,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 252 transitions. [2022-11-20 12:04:15,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:15,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 71.0) internal successors, (426), 6 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:15,889 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 71.0) internal successors, (426), 6 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:15,889 INFO L175 Difference]: Start difference. First operand has 66 places, 59 transitions, 146 flow. Second operand 5 states and 252 transitions. [2022-11-20 12:04:15,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 49 transitions, 157 flow [2022-11-20 12:04:15,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 49 transitions, 146 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 12:04:15,891 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2022-11-20 12:04:15,891 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2022-11-20 12:04:15,894 INFO L288 CegarLoopForPetriNet]: 62 programPoint places, -5 predicate places. [2022-11-20 12:04:15,894 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2022-11-20 12:04:15,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:15,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-20 12:04:15,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-11-20 12:04:15,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:04:15,901 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-20 12:04:15,907 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:04:15,907 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:04:15,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:04:15 BasicIcfg [2022-11-20 12:04:15,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:04:15,925 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:04:15,925 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:04:15,925 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:04:15,926 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:04:13" (3/4) ... [2022-11-20 12:04:15,930 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:04:15,939 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-20 12:04:15,946 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-20 12:04:15,946 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 12:04:15,946 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 12:04:15,947 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 12:04:15,987 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32c520a6-4652-423d-8436-9874a0456917/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:04:15,987 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:04:15,988 INFO L158 Benchmark]: Toolchain (without parser) took 3935.50ms. Allocated memory is still 192.9MB. Free memory was 145.3MB in the beginning and 121.5MB in the end (delta: 23.8MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2022-11-20 12:04:15,989 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 134.2MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:04:15,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 727.63ms. Allocated memory is still 192.9MB. Free memory was 145.3MB in the beginning and 126.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 12:04:15,990 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.63ms. Allocated memory is still 192.9MB. Free memory was 126.4MB in the beginning and 124.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:04:15,990 INFO L158 Benchmark]: Boogie Preprocessor took 60.96ms. Allocated memory is still 192.9MB. Free memory was 124.4MB in the beginning and 123.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:04:15,991 INFO L158 Benchmark]: RCFGBuilder took 654.27ms. Allocated memory is still 192.9MB. Free memory was 123.2MB in the beginning and 110.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 12:04:15,992 INFO L158 Benchmark]: TraceAbstraction took 2333.95ms. Allocated memory is still 192.9MB. Free memory was 109.7MB in the beginning and 124.7MB in the end (delta: -14.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:04:15,992 INFO L158 Benchmark]: Witness Printer took 62.53ms. Allocated memory is still 192.9MB. Free memory was 124.7MB in the beginning and 121.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:04:15,995 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 134.2MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 727.63ms. Allocated memory is still 192.9MB. Free memory was 145.3MB in the beginning and 126.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.63ms. Allocated memory is still 192.9MB. Free memory was 126.4MB in the beginning and 124.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.96ms. Allocated memory is still 192.9MB. Free memory was 124.4MB in the beginning and 123.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 654.27ms. Allocated memory is still 192.9MB. Free memory was 123.2MB in the beginning and 110.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2333.95ms. Allocated memory is still 192.9MB. Free memory was 109.7MB in the beginning and 124.7MB in the end (delta: -14.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 62.53ms. Allocated memory is still 192.9MB. Free memory was 124.7MB in the beginning and 121.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 83 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 21 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred in iteration=2, InterpolantAutomatonStates: 15, 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, 1.2s InterpolantComputationTime, 157 NumberOfCodeBlocks, 157 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 346 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 12:04:16,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32c520a6-4652-423d-8436-9874a0456917/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