./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36105814f7d14243ca8b55776979fcada1717aa30ae4c259b302358b1f244a48 --- 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-38b53e6 [2022-11-25 18:19:40,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:19:40,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:19:40,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:19:40,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:19:40,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:19:40,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:19:40,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:19:40,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:19:40,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:19:40,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:19:40,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:19:40,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:19:40,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:19:40,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:19:40,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:19:40,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:19:40,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:19:40,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:19:40,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:19:40,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:19:40,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:19:40,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:19:40,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:19:40,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:19:40,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:19:40,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:19:40,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:19:40,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:19:40,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:19:40,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:19:40,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:19:40,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:19:40,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:19:40,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:19:40,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:19:40,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:19:40,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:19:40,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:19:40,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:19:40,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:19:40,326 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 18:19:40,353 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:19:40,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:19:40,354 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:19:40,354 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:19:40,355 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:19:40,355 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:19:40,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:19:40,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:19:40,357 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:19:40,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:19:40,357 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:19:40,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:19:40,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:19:40,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:19:40,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:19:40,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:19:40,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:19:40,360 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:19:40,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:19:40,360 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:19:40,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:19:40,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:19:40,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:19:40,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:19:40,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:19:40,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:19:40,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:19:40,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:19:40,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:19:40,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:19:40,363 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:19:40,364 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:19:40,364 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:19:40,364 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:19:40,365 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36105814f7d14243ca8b55776979fcada1717aa30ae4c259b302358b1f244a48 [2022-11-25 18:19:40,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:19:40,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:19:40,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:19:40,681 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:19:40,681 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:19:40,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-11-25 18:19:43,863 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:19:44,214 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:19:44,215 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-11-25 18:19:44,241 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/bin/uautomizer-ZsLfNo2U6R/data/82d07498b/ae86ec1a03504e628f39d5fceca9542a/FLAG65d1216f6 [2022-11-25 18:19:44,258 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/bin/uautomizer-ZsLfNo2U6R/data/82d07498b/ae86ec1a03504e628f39d5fceca9542a [2022-11-25 18:19:44,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:19:44,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:19:44,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:19:44,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:19:44,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:19:44,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:19:44" (1/1) ... [2022-11-25 18:19:44,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72dadf91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:44, skipping insertion in model container [2022-11-25 18:19:44,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:19:44" (1/1) ... [2022-11-25 18:19:44,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:19:44,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:19:44,486 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_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2022-11-25 18:19:44,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:19:44,775 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:19:44,795 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_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2022-11-25 18:19:44,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:19:44,857 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:19:44,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:44 WrapperNode [2022-11-25 18:19:44,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:19:44,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:19:44,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:19:44,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:19:44,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:44" (1/1) ... [2022-11-25 18:19:44,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:44" (1/1) ... [2022-11-25 18:19:44,945 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-11-25 18:19:44,946 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:19:44,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:19:44,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:19:44,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:19:44,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:44" (1/1) ... [2022-11-25 18:19:44,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:44" (1/1) ... [2022-11-25 18:19:44,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:44" (1/1) ... [2022-11-25 18:19:44,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:44" (1/1) ... [2022-11-25 18:19:44,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:44" (1/1) ... [2022-11-25 18:19:45,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:44" (1/1) ... [2022-11-25 18:19:45,003 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:44" (1/1) ... [2022-11-25 18:19:45,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:44" (1/1) ... [2022-11-25 18:19:45,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:19:45,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:19:45,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:19:45,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:19:45,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:44" (1/1) ... [2022-11-25 18:19:45,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:19:45,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:19:45,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:19:45,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:19:45,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:19:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 18:19:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:19:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:19:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 18:19:45,121 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 18:19:45,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:19:45,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:19:45,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:19:45,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:19:45,124 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 18:19:45,329 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:19:45,331 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:19:45,552 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:19:45,560 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:19:45,561 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:19:45,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:19:45 BoogieIcfgContainer [2022-11-25 18:19:45,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:19:45,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:19:45,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:19:45,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:19:45,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:19:44" (1/3) ... [2022-11-25 18:19:45,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@823ea58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:19:45, skipping insertion in model container [2022-11-25 18:19:45,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:19:44" (2/3) ... [2022-11-25 18:19:45,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@823ea58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:19:45, skipping insertion in model container [2022-11-25 18:19:45,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:19:45" (3/3) ... [2022-11-25 18:19:45,575 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-11-25 18:19:45,586 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:19:45,600 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:19:45,600 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:19:45,600 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:19:45,659 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 18:19:45,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 161 flow [2022-11-25 18:19:45,800 INFO L130 PetriNetUnfolder]: 2/77 cut-off events. [2022-11-25 18:19:45,807 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:19:45,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2022-11-25 18:19:45,814 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 78 transitions, 161 flow [2022-11-25 18:19:45,820 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 65 transitions, 133 flow [2022-11-25 18:19:45,823 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:19:45,843 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 65 transitions, 133 flow [2022-11-25 18:19:45,846 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 65 transitions, 133 flow [2022-11-25 18:19:45,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 65 transitions, 133 flow [2022-11-25 18:19:45,873 INFO L130 PetriNetUnfolder]: 1/65 cut-off events. [2022-11-25 18:19:45,873 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:19:45,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 65 events. 1/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2022-11-25 18:19:45,875 INFO L119 LiptonReduction]: Number of co-enabled transitions 380 [2022-11-25 18:19:50,013 INFO L134 LiptonReduction]: Checked pairs total: 1073 [2022-11-25 18:19:50,013 INFO L136 LiptonReduction]: Total number of compositions: 57 [2022-11-25 18:19:50,034 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:19:50,042 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7677ba07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:19:50,042 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 18:19:50,046 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-11-25 18:19:50,046 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:19:50,047 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:19:50,047 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 18:19:50,048 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-25 18:19:50,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:19:50,064 INFO L85 PathProgramCache]: Analyzing trace with hash 8040823, now seen corresponding path program 1 times [2022-11-25 18:19:50,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:19:50,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132832579] [2022-11-25 18:19:50,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:19:50,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:19:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:19:50,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:19:50,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:19:50,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132832579] [2022-11-25 18:19:50,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132832579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:19:50,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:19:50,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:19:50,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079642170] [2022-11-25 18:19:50,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:19:50,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:19:50,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:19:50,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:19:50,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:19:50,625 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 135 [2022-11-25 18:19:50,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 13 transitions, 29 flow. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2022-11-25 18:19:50,629 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:19:50,629 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 135 [2022-11-25 18:19:50,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:19:50,685 INFO L130 PetriNetUnfolder]: 10/45 cut-off events. [2022-11-25 18:19:50,685 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:19:50,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 45 events. 10/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 130 event pairs, 6 based on Foata normal form. 2/45 useless extension candidates. Maximal degree in co-relation 76. Up to 23 conditions per place. [2022-11-25 18:19:50,687 INFO L137 encePairwiseOnDemand]: 130/135 looper letters, 9 selfloop transitions, 3 changer transitions 0/15 dead transitions. [2022-11-25 18:19:50,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 15 transitions, 57 flow [2022-11-25 18:19:50,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:19:50,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:19:50,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 230 transitions. [2022-11-25 18:19:50,704 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5679012345679012 [2022-11-25 18:19:50,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 230 transitions. [2022-11-25 18:19:50,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 230 transitions. [2022-11-25 18:19:50,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:19:50,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 230 transitions. [2022-11-25 18:19:50,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2022-11-25 18:19:50,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2022-11-25 18:19:50,724 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2022-11-25 18:19:50,727 INFO L175 Difference]: Start difference. First operand has 16 places, 13 transitions, 29 flow. Second operand 3 states and 230 transitions. [2022-11-25 18:19:50,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 15 transitions, 57 flow [2022-11-25 18:19:50,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 15 transitions, 56 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:19:50,733 INFO L231 Difference]: Finished difference. Result has 19 places, 13 transitions, 44 flow [2022-11-25 18:19:50,735 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=19, PETRI_TRANSITIONS=13} [2022-11-25 18:19:50,745 INFO L288 CegarLoopForPetriNet]: 16 programPoint places, 3 predicate places. [2022-11-25 18:19:50,745 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 44 flow [2022-11-25 18:19:50,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2022-11-25 18:19:50,746 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:19:50,746 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:19:50,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:19:50,747 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-25 18:19:50,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:19:50,750 INFO L85 PathProgramCache]: Analyzing trace with hash -974931518, now seen corresponding path program 1 times [2022-11-25 18:19:50,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:19:50,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266068549] [2022-11-25 18:19:50,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:19:50,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:19:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:19:50,781 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:19:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:19:50,822 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:19:50,823 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:19:50,825 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-25 18:19:50,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-11-25 18:19:50,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:19:50,829 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 18:19:50,836 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 18:19:50,836 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:19:50,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:19:50 BasicIcfg [2022-11-25 18:19:50,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:19:50,868 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:19:50,868 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:19:50,868 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:19:50,869 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:19:45" (3/4) ... [2022-11-25 18:19:50,871 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 18:19:50,917 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:19:50,917 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:19:50,918 INFO L158 Benchmark]: Toolchain (without parser) took 6655.51ms. Allocated memory was 159.4MB in the beginning and 197.1MB in the end (delta: 37.7MB). Free memory was 126.2MB in the beginning and 130.6MB in the end (delta: -4.4MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2022-11-25 18:19:50,919 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 125.8MB. Free memory is still 76.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:19:50,919 INFO L158 Benchmark]: CACSL2BoogieTranslator took 594.46ms. Allocated memory is still 159.4MB. Free memory was 126.2MB in the beginning and 107.0MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 18:19:50,920 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.42ms. Allocated memory is still 159.4MB. Free memory was 107.0MB in the beginning and 104.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:19:50,920 INFO L158 Benchmark]: Boogie Preprocessor took 59.92ms. Allocated memory is still 159.4MB. Free memory was 104.9MB in the beginning and 103.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:19:50,921 INFO L158 Benchmark]: RCFGBuilder took 555.61ms. Allocated memory is still 159.4MB. Free memory was 103.7MB in the beginning and 90.7MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 18:19:50,921 INFO L158 Benchmark]: TraceAbstraction took 5300.54ms. Allocated memory was 159.4MB in the beginning and 197.1MB in the end (delta: 37.7MB). Free memory was 89.9MB in the beginning and 132.7MB in the end (delta: -42.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:19:50,922 INFO L158 Benchmark]: Witness Printer took 49.50ms. Allocated memory is still 197.1MB. Free memory was 132.7MB in the beginning and 130.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:19:50,924 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 125.8MB. Free memory is still 76.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 594.46ms. Allocated memory is still 159.4MB. Free memory was 126.2MB in the beginning and 107.0MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.42ms. Allocated memory is still 159.4MB. Free memory was 107.0MB in the beginning and 104.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.92ms. Allocated memory is still 159.4MB. Free memory was 104.9MB in the beginning and 103.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 555.61ms. Allocated memory is still 159.4MB. Free memory was 103.7MB in the beginning and 90.7MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5300.54ms. Allocated memory was 159.4MB in the beginning and 197.1MB in the end (delta: 37.7MB). Free memory was 89.9MB in the beginning and 132.7MB in the end (delta: -42.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 49.50ms. Allocated memory is still 197.1MB. Free memory was 132.7MB in the beginning and 130.6MB 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: 4.2s, 68 PlacesBefore, 16 PlacesAfterwards, 65 TransitionsBefore, 13 TransitionsAfterwards, 380 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 57 TotalNumberOfCompositions, 1073 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 555, independent: 425, independent conditional: 0, independent unconditional: 425, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 273, independent: 241, independent conditional: 0, independent unconditional: 241, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 273, independent: 223, independent conditional: 0, independent unconditional: 223, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 234, independent: 76, independent conditional: 0, independent unconditional: 76, dependent: 158, dependent conditional: 0, dependent unconditional: 158, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 555, independent: 184, independent conditional: 0, independent unconditional: 184, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 273, unknown conditional: 0, unknown unconditional: 273] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 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 g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0, r=1] [L700] COND TRUE 0 \read(r) [L701] 0 g = 17 VAL [A={3:0}, arg={0:0}, B={4:0}, g=17, id={5:0}, r=1] [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(!(t == 17)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=17] - UnprovableResult [Line: 697]: 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, 89 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 0 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=1, InterpolantAutomatonStates: 3, 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, 0.3s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2022-11-25 18:19:50,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdae7b81-cc35-4d05-8d45-c58f7c2291a0/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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