./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/bin/utaipan-g80aRyZoba --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 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 --- 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-b5237d8 [2022-11-22 02:00:13,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:00:13,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:00:13,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:00:13,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:00:13,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:00:13,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:00:13,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:00:13,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:00:13,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:00:13,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:00:13,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:00:13,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:00:13,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:00:13,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:00:13,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:00:13,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:00:13,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:00:13,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:00:13,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:00:13,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:00:13,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:00:13,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:00:13,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:00:13,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:00:13,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:00:13,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:00:13,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:00:13,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:00:13,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:00:13,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:00:13,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:00:13,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:00:13,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:00:13,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:00:13,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:00:13,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:00:13,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:00:13,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:00:13,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:00:13,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:00:13,245 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 02:00:13,290 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:00:13,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:00:13,291 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:00:13,291 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:00:13,292 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:00:13,292 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:00:13,293 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:00:13,293 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:00:13,293 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:00:13,293 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:00:13,295 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:00:13,295 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:00:13,295 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:00:13,295 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:00:13,296 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:00:13,296 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:00:13,296 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:00:13,296 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:00:13,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:00:13,297 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:00:13,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:00:13,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:00:13,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:00:13,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:00:13,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:00:13,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:00:13,299 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:00:13,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:00:13,300 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:00:13,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:00:13,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:00:13,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:00:13,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:00:13,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:00:13,302 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:00:13,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:00:13,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:00:13,303 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:00:13,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:00:13,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:00:13,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:00:13,304 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_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 [2022-11-22 02:00:13,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:00:13,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:00:13,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:00:13,663 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:00:13,663 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:00:13,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-11-22 02:00:16,840 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:00:17,117 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:00:17,117 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-11-22 02:00:17,147 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/bin/utaipan-g80aRyZoba/data/1e9787c79/98bc6937b9f2402d94209a1479b9236e/FLAGb8b2298f6 [2022-11-22 02:00:17,160 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/bin/utaipan-g80aRyZoba/data/1e9787c79/98bc6937b9f2402d94209a1479b9236e [2022-11-22 02:00:17,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:00:17,164 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:00:17,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:00:17,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:00:17,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:00:17,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:00:17" (1/1) ... [2022-11-22 02:00:17,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@708c7ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:17, skipping insertion in model container [2022-11-22 02:00:17,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:00:17" (1/1) ... [2022-11-22 02:00:17,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:00:17,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:00:17,395 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_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2022-11-22 02:00:17,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:00:17,609 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:00:17,630 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_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2022-11-22 02:00:17,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:00:17,751 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:00:17,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:17 WrapperNode [2022-11-22 02:00:17,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:00:17,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:00:17,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:00:17,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:00:17,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:17" (1/1) ... [2022-11-22 02:00:17,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:17" (1/1) ... [2022-11-22 02:00:17,803 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-11-22 02:00:17,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:00:17,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:00:17,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:00:17,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:00:17,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:17" (1/1) ... [2022-11-22 02:00:17,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:17" (1/1) ... [2022-11-22 02:00:17,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:17" (1/1) ... [2022-11-22 02:00:17,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:17" (1/1) ... [2022-11-22 02:00:17,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:17" (1/1) ... [2022-11-22 02:00:17,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:17" (1/1) ... [2022-11-22 02:00:17,842 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:17" (1/1) ... [2022-11-22 02:00:17,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:17" (1/1) ... [2022-11-22 02:00:17,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:00:17,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:00:17,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:00:17,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:00:17,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:17" (1/1) ... [2022-11-22 02:00:17,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:00:17,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:00:17,887 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:00:17,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:00:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:00:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:00:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 02:00:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:00:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:00:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-22 02:00:17,929 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-22 02:00:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:00:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:00:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:00:17,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:00:17,932 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 02:00:18,063 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:00:18,065 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:00:18,321 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:00:18,331 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:00:18,331 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:00:18,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:00:18 BoogieIcfgContainer [2022-11-22 02:00:18,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:00:18,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:00:18,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:00:18,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:00:18,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:00:17" (1/3) ... [2022-11-22 02:00:18,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@514d1e2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:00:18, skipping insertion in model container [2022-11-22 02:00:18,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:00:17" (2/3) ... [2022-11-22 02:00:18,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@514d1e2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:00:18, skipping insertion in model container [2022-11-22 02:00:18,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:00:18" (3/3) ... [2022-11-22 02:00:18,346 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2022-11-22 02:00:18,357 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 02:00:18,371 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:00:18,371 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:00:18,372 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:00:18,448 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-22 02:00:18,488 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:00:18,505 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 64 transitions, 136 flow [2022-11-22 02:00:18,510 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 64 transitions, 136 flow [2022-11-22 02:00:18,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 64 transitions, 136 flow [2022-11-22 02:00:18,566 INFO L130 PetriNetUnfolder]: 2/63 cut-off events. [2022-11-22 02:00:18,582 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-22 02:00:18,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 63 events. 2/63 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2022-11-22 02:00:18,589 INFO L119 LiptonReduction]: Number of co-enabled transitions 288 [2022-11-22 02:00:21,549 INFO L134 LiptonReduction]: Checked pairs total: 397 [2022-11-22 02:00:21,549 INFO L136 LiptonReduction]: Total number of compositions: 62 [2022-11-22 02:00:21,558 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 14 places, 10 transitions, 28 flow [2022-11-22 02:00:21,570 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 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) [2022-11-22 02:00:21,596 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:00:21,607 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;@7937f80a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:00:21,607 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 02:00:21,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 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) [2022-11-22 02:00:21,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 02:00:21,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:21,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 02:00:21,627 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:00:21,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:21,638 INFO L85 PathProgramCache]: Analyzing trace with hash 251262, now seen corresponding path program 1 times [2022-11-22 02:00:21,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:21,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551296757] [2022-11-22 02:00:21,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:21,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:00:21,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:00:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:00:21,909 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:00:21,911 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:00:21,913 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-11-22 02:00:21,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-11-22 02:00:21,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-11-22 02:00:21,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:00:21,919 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 02:00:21,929 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 02:00:21,929 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:00:21,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:00:21 BasicIcfg [2022-11-22 02:00:21,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:00:21,953 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:00:21,953 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:00:21,953 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:00:21,953 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:00:18" (3/4) ... [2022-11-22 02:00:21,955 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 02:00:22,009 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:00:22,009 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:00:22,010 INFO L158 Benchmark]: Toolchain (without parser) took 4845.35ms. Allocated memory is still 172.0MB. Free memory was 128.7MB in the beginning and 95.5MB in the end (delta: 33.2MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2022-11-22 02:00:22,010 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory was 81.3MB in the beginning and 81.1MB in the end (delta: 151.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:00:22,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 587.07ms. Allocated memory is still 172.0MB. Free memory was 128.6MB in the beginning and 109.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 02:00:22,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.36ms. Allocated memory is still 172.0MB. Free memory was 109.5MB in the beginning and 107.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:00:22,012 INFO L158 Benchmark]: Boogie Preprocessor took 47.30ms. Allocated memory is still 172.0MB. Free memory was 107.6MB in the beginning and 106.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:00:22,012 INFO L158 Benchmark]: RCFGBuilder took 481.62ms. Allocated memory is still 172.0MB. Free memory was 106.2MB in the beginning and 140.6MB in the end (delta: -34.3MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2022-11-22 02:00:22,012 INFO L158 Benchmark]: TraceAbstraction took 3615.01ms. Allocated memory is still 172.0MB. Free memory was 140.0MB in the beginning and 97.6MB in the end (delta: 42.5MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2022-11-22 02:00:22,015 INFO L158 Benchmark]: Witness Printer took 56.26ms. Allocated memory is still 172.0MB. Free memory was 97.6MB in the beginning and 95.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:00:22,020 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory was 81.3MB in the beginning and 81.1MB in the end (delta: 151.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 587.07ms. Allocated memory is still 172.0MB. Free memory was 128.6MB in the beginning and 109.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.36ms. Allocated memory is still 172.0MB. Free memory was 109.5MB in the beginning and 107.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.30ms. Allocated memory is still 172.0MB. Free memory was 107.6MB in the beginning and 106.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 481.62ms. Allocated memory is still 172.0MB. Free memory was 106.2MB in the beginning and 140.6MB in the end (delta: -34.3MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3615.01ms. Allocated memory is still 172.0MB. Free memory was 140.0MB in the beginning and 97.6MB in the end (delta: 42.5MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. * Witness Printer took 56.26ms. Allocated memory is still 172.0MB. Free memory was 97.6MB in the beginning and 95.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 66 PlacesBefore, 14 PlacesAfterwards, 64 TransitionsBefore, 10 TransitionsAfterwards, 288 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 62 TotalNumberOfCompositions, 397 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 328, independent: 297, independent conditional: 0, independent unconditional: 297, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 238, independent: 222, independent conditional: 0, independent unconditional: 222, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 238, independent: 215, independent conditional: 0, independent unconditional: 215, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 23, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 92, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 328, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 238, unknown conditional: 0, unknown unconditional: 238] , Statistics on independence cache: Total cache size (in pairs): 10, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, 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 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 1)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-22 02:00:22,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a4d03d-10a2-4253-9011-dbd16e94dbe6/bin/utaipan-g80aRyZoba/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE