./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_33785595-b0b0-4407-a1ce-58a204d5145d/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33785595-b0b0-4407-a1ce-58a204d5145d/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33785595-b0b0-4407-a1ce-58a204d5145d/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33785595-b0b0-4407-a1ce-58a204d5145d/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33785595-b0b0-4407-a1ce-58a204d5145d/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33785595-b0b0-4407-a1ce-58a204d5145d/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9f8eb81fe04afedf177636b6e0b2ff7ec90c549122dc143b3ac2872279b10356 --- 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-4e7fbc6 [2022-11-23 14:54:48,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:54:48,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:54:48,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:54:48,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:54:48,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:54:48,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:54:48,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:54:48,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:54:48,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:54:48,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:54:48,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:54:48,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:54:48,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:54:48,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:54:48,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:54:48,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:54:48,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:54:48,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:54:48,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:54:48,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:54:48,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:54:48,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:54:48,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:54:48,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:54:48,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:54:48,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:54:48,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:54:48,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:54:48,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:54:48,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:54:48,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:54:48,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:54:48,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:54:48,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:54:48,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:54:48,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:54:48,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:54:48,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:54:48,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:54:48,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:54:48,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33785595-b0b0-4407-a1ce-58a204d5145d/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:54:48,542 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:54:48,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:54:48,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:54:48,544 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:54:48,545 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:54:48,545 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:54:48,545 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:54:48,546 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:54:48,546 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:54:48,546 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:54:48,547 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:54:48,548 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:54:48,548 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:54:48,548 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:54:48,549 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:54:48,549 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:54:48,549 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:54:48,549 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:54:48,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:54:48,551 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:54:48,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:54:48,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:54:48,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:54:48,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:54:48,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:54:48,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:54:48,552 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:54:48,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:54:48,553 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:54:48,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:54:48,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:54:48,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:54:48,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:54:48,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:54:48,555 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:54:48,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:54:48,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:54:48,556 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:54:48,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:54:48,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:54:48,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:54:48,557 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_33785595-b0b0-4407-a1ce-58a204d5145d/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33785595-b0b0-4407-a1ce-58a204d5145d/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f8eb81fe04afedf177636b6e0b2ff7ec90c549122dc143b3ac2872279b10356 [2022-11-23 14:54:48,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:54:48,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:54:48,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:54:48,930 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:54:48,931 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:54:48,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33785595-b0b0-4407-a1ce-58a204d5145d/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2022-11-23 14:54:52,129 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:54:52,418 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:54:52,419 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33785595-b0b0-4407-a1ce-58a204d5145d/sv-benchmarks/c/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2022-11-23 14:54:52,439 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33785595-b0b0-4407-a1ce-58a204d5145d/bin/utaipan-Q6hlc19bkW/data/7265288fe/f5021a6a0174445cb29c33697be4a9ec/FLAGc9c50c976 [2022-11-23 14:54:52,455 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33785595-b0b0-4407-a1ce-58a204d5145d/bin/utaipan-Q6hlc19bkW/data/7265288fe/f5021a6a0174445cb29c33697be4a9ec [2022-11-23 14:54:52,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:54:52,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:54:52,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:54:52,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:54:52,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:54:52,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:54:52" (1/1) ... [2022-11-23 14:54:52,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a890515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:52, skipping insertion in model container [2022-11-23 14:54:52,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:54:52" (1/1) ... [2022-11-23 14:54:52,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:54:52,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:54:52,689 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_33785595-b0b0-4407-a1ce-58a204d5145d/sv-benchmarks/c/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i[1097,1110] [2022-11-23 14:54:52,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:54:52,942 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:54:52,959 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_33785595-b0b0-4407-a1ce-58a204d5145d/sv-benchmarks/c/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i[1097,1110] [2022-11-23 14:54:53,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:54:53,039 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:54:53,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:53 WrapperNode [2022-11-23 14:54:53,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:54:53,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:54:53,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:54:53,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:54:53,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:53" (1/1) ... [2022-11-23 14:54:53,067 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:53" (1/1) ... [2022-11-23 14:54:53,089 INFO L138 Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2022-11-23 14:54:53,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:54:53,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:54:53,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:54:53,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:54:53,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:53" (1/1) ... [2022-11-23 14:54:53,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:53" (1/1) ... [2022-11-23 14:54:53,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:53" (1/1) ... [2022-11-23 14:54:53,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:53" (1/1) ... [2022-11-23 14:54:53,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:53" (1/1) ... [2022-11-23 14:54:53,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:53" (1/1) ... [2022-11-23 14:54:53,112 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:53" (1/1) ... [2022-11-23 14:54:53,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:53" (1/1) ... [2022-11-23 14:54:53,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:54:53,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:54:53,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:54:53,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:54:53,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:53" (1/1) ... [2022-11-23 14:54:53,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:54:53,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33785595-b0b0-4407-a1ce-58a204d5145d/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:54:53,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33785595-b0b0-4407-a1ce-58a204d5145d/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:54:53,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33785595-b0b0-4407-a1ce-58a204d5145d/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:54:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:54:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:54:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 14:54:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:54:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:54:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-23 14:54:53,194 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-23 14:54:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:54:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:54:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:54:53,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:54:53,197 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 14:54:53,324 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:54:53,326 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:54:53,526 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:54:53,533 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:54:53,533 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:54:53,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:54:53 BoogieIcfgContainer [2022-11-23 14:54:53,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:54:53,554 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:54:53,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:54:53,558 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:54:53,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:54:52" (1/3) ... [2022-11-23 14:54:53,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1314de7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:54:53, skipping insertion in model container [2022-11-23 14:54:53,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:53" (2/3) ... [2022-11-23 14:54:53,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1314de7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:54:53, skipping insertion in model container [2022-11-23 14:54:53,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:54:53" (3/3) ... [2022-11-23 14:54:53,561 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_30-traces-oplus-vs-meet_true.i [2022-11-23 14:54:53,586 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 14:54:53,598 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:54:53,599 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 14:54:53,599 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:54:53,678 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-23 14:54:53,715 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:54:53,732 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 84 transitions, 176 flow [2022-11-23 14:54:53,735 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 84 transitions, 176 flow [2022-11-23 14:54:53,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 84 transitions, 176 flow [2022-11-23 14:54:53,789 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-11-23 14:54:53,790 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 14:54:53,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 83 events. 2/83 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2022-11-23 14:54:53,796 INFO L119 LiptonReduction]: Number of co-enabled transitions 532 [2022-11-23 14:54:57,470 INFO L134 LiptonReduction]: Checked pairs total: 1734 [2022-11-23 14:54:57,470 INFO L136 LiptonReduction]: Total number of compositions: 83 [2022-11-23 14:54:57,479 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 21 transitions, 50 flow [2022-11-23 14:54:57,500 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 48 states, 45 states have (on average 1.7555555555555555) internal successors, (79), 47 states have internal predecessors, (79), 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) [2022-11-23 14:54:57,524 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:54:57,532 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=FINITE_AUTOMATA, 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;@42482e08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:54:57,533 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-23 14:54:57,535 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 45 states have (on average 1.7555555555555555) internal successors, (79), 47 states have internal predecessors, (79), 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) [2022-11-23 14:54:57,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-23 14:54:57,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:54:57,541 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-23 14:54:57,542 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-23 14:54:57,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:54:57,550 INFO L85 PathProgramCache]: Analyzing trace with hash 307, now seen corresponding path program 1 times [2022-11-23 14:54:57,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:54:57,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141328353] [2022-11-23 14:54:57,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:57,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:54:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:54:57,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:54:57,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:54:57,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141328353] [2022-11-23 14:54:57,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141328353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:54:57,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:54:57,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 14:54:57,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936136708] [2022-11-23 14:54:57,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:54:57,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:54:57,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:54:57,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:54:57,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:54:57,741 INFO L87 Difference]: Start difference. First operand has 48 states, 45 states have (on average 1.7555555555555555) internal successors, (79), 47 states have internal predecessors, (79), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-23 14:54:57,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:54:57,781 INFO L93 Difference]: Finished difference Result 47 states and 78 transitions. [2022-11-23 14:54:57,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:54:57,784 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-11-23 14:54:57,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:54:57,794 INFO L225 Difference]: With dead ends: 47 [2022-11-23 14:54:57,795 INFO L226 Difference]: Without dead ends: 38 [2022-11-23 14:54:57,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:54:57,801 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:54:57,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:54:57,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-23 14:54:57,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-23 14:54:57,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.6486486486486487) internal successors, (61), 37 states have internal predecessors, (61), 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) [2022-11-23 14:54:57,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2022-11-23 14:54:57,849 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 1 [2022-11-23 14:54:57,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:54:57,849 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2022-11-23 14:54:57,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-23 14:54:57,852 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2022-11-23 14:54:57,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 14:54:57,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:54:57,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 14:54:57,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:54:57,853 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-23 14:54:57,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:54:57,854 INFO L85 PathProgramCache]: Analyzing trace with hash 288595159, now seen corresponding path program 1 times [2022-11-23 14:54:57,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:54:57,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807680538] [2022-11-23 14:54:57,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:57,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:54:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:54:58,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:54:58,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:54:58,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807680538] [2022-11-23 14:54:58,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807680538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:54:58,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:54:58,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:54:58,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113735222] [2022-11-23 14:54:58,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:54:58,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:54:58,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:54:58,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:54:58,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:54:58,106 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-23 14:54:58,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:54:58,138 INFO L93 Difference]: Finished difference Result 35 states and 52 transitions. [2022-11-23 14:54:58,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:54:58,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2022-11-23 14:54:58,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:54:58,140 INFO L225 Difference]: With dead ends: 35 [2022-11-23 14:54:58,141 INFO L226 Difference]: Without dead ends: 26 [2022-11-23 14:54:58,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:54:58,144 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:54:58,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:54:58,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-23 14:54:58,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-23 14:54:58,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.48) internal successors, (37), 25 states have internal predecessors, (37), 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) [2022-11-23 14:54:58,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 37 transitions. [2022-11-23 14:54:58,153 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 37 transitions. Word has length 5 [2022-11-23 14:54:58,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:54:58,154 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 37 transitions. [2022-11-23 14:54:58,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-23 14:54:58,157 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2022-11-23 14:54:58,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 14:54:58,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:54:58,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:54:58,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:54:58,159 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-23 14:54:58,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:54:58,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1667828088, now seen corresponding path program 1 times [2022-11-23 14:54:58,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:54:58,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603540240] [2022-11-23 14:54:58,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:58,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:54:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:54:58,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:54:58,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:54:58,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603540240] [2022-11-23 14:54:58,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603540240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:54:58,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:54:58,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:54:58,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490581102] [2022-11-23 14:54:58,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:54:58,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:54:58,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:54:58,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:54:58,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:54:58,435 INFO L87 Difference]: Start difference. First operand 26 states and 37 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-23 14:54:58,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:54:58,463 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2022-11-23 14:54:58,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:54:58,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2022-11-23 14:54:58,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:54:58,464 INFO L225 Difference]: With dead ends: 15 [2022-11-23 14:54:58,464 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:54:58,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:54:58,470 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:54:58,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:54:58,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:54:58,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:54:58,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-23 14:54:58,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:54:58,473 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-11-23 14:54:58,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:54:58,475 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:54:58,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-23 14:54:58,475 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:54:58,475 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:54:58,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-11-23 14:54:58,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-11-23 14:54:58,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-11-23 14:54:58,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:54:58,483 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-23 14:54:58,486 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 14:54:58,487 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:54:58,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:54:58 BasicIcfg [2022-11-23 14:54:58,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:54:58,497 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:54:58,497 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:54:58,497 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:54:58,498 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:54:53" (3/4) ... [2022-11-23 14:54:58,501 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:54:58,509 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-23 14:54:58,514 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-23 14:54:58,515 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 14:54:58,515 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 14:54:58,515 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:54:58,559 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33785595-b0b0-4407-a1ce-58a204d5145d/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:54:58,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:54:58,560 INFO L158 Benchmark]: Toolchain (without parser) took 6100.33ms. Allocated memory is still 211.8MB. Free memory was 171.6MB in the beginning and 144.1MB in the end (delta: 27.5MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2022-11-23 14:54:58,560 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:54:58,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 579.00ms. Allocated memory is still 211.8MB. Free memory was 171.2MB in the beginning and 152.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 14:54:58,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.86ms. Allocated memory is still 211.8MB. Free memory was 152.0MB in the beginning and 150.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:54:58,561 INFO L158 Benchmark]: Boogie Preprocessor took 25.83ms. Allocated memory is still 211.8MB. Free memory was 150.3MB in the beginning and 149.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:54:58,562 INFO L158 Benchmark]: RCFGBuilder took 419.17ms. Allocated memory is still 211.8MB. Free memory was 148.6MB in the beginning and 135.6MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 14:54:58,562 INFO L158 Benchmark]: TraceAbstraction took 4941.66ms. Allocated memory is still 211.8MB. Free memory was 134.8MB in the beginning and 146.3MB in the end (delta: -11.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:54:58,562 INFO L158 Benchmark]: Witness Printer took 62.93ms. Allocated memory is still 211.8MB. Free memory was 146.3MB in the beginning and 144.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:54:58,565 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 579.00ms. Allocated memory is still 211.8MB. Free memory was 171.2MB in the beginning and 152.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.86ms. Allocated memory is still 211.8MB. Free memory was 152.0MB in the beginning and 150.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.83ms. Allocated memory is still 211.8MB. Free memory was 150.3MB in the beginning and 149.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 419.17ms. Allocated memory is still 211.8MB. Free memory was 148.6MB in the beginning and 135.6MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4941.66ms. Allocated memory is still 211.8MB. Free memory was 134.8MB in the beginning and 146.3MB in the end (delta: -11.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 62.93ms. Allocated memory is still 211.8MB. Free memory was 146.3MB in the beginning and 144.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 86 PlacesBefore, 24 PlacesAfterwards, 84 TransitionsBefore, 21 TransitionsAfterwards, 532 CoEnabledTransitionPairs, 6 FixpointIterations, 48 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 83 TotalNumberOfCompositions, 1734 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 930, independent: 783, independent conditional: 0, independent unconditional: 783, dependent: 147, dependent conditional: 0, dependent unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 468, independent: 424, independent conditional: 0, independent unconditional: 424, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 468, independent: 368, independent conditional: 0, independent unconditional: 368, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 100, independent: 56, independent conditional: 0, independent unconditional: 56, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 215, independent: 91, independent conditional: 0, independent unconditional: 91, dependent: 124, dependent conditional: 0, dependent unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 930, independent: 359, independent conditional: 0, independent unconditional: 359, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 468, unknown conditional: 0, unknown unconditional: 468] , Statistics on independence cache: Total cache size (in pairs): 80, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - 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, 99 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 9 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 47 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 14:54:58,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33785595-b0b0-4407-a1ce-58a204d5145d/bin/utaipan-Q6hlc19bkW/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