./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_87af9375-da86-4182-90cf-e2491ef9838a/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87af9375-da86-4182-90cf-e2491ef9838a/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87af9375-da86-4182-90cf-e2491ef9838a/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87af9375-da86-4182-90cf-e2491ef9838a/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87af9375-da86-4182-90cf-e2491ef9838a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87af9375-da86-4182-90cf-e2491ef9838a/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --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 dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:15:35,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:15:36,079 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87af9375-da86-4182-90cf-e2491ef9838a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:15:36,083 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:15:36,084 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:15:36,107 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:15:36,107 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:15:36,108 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:15:36,109 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:15:36,110 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:15:36,111 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:15:36,111 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:15:36,112 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:15:36,113 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:15:36,113 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:15:36,114 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:15:36,115 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:15:36,115 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:15:36,116 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:15:36,116 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:15:36,117 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:15:36,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:15:36,118 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:15:36,119 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:15:36,120 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:15:36,120 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:15:36,121 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:15:36,121 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:15:36,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:36,122 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:15:36,123 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:15:36,123 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:15:36,124 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:15:36,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:15:36,124 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:15:36,125 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:15:36,125 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:15:36,125 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:15:36,126 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:15:36,126 INFO L153 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_87af9375-da86-4182-90cf-e2491ef9838a/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87af9375-da86-4182-90cf-e2491ef9838a/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c [2023-11-12 02:15:36,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:15:36,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:15:36,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:15:36,468 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:15:36,469 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:15:36,470 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87af9375-da86-4182-90cf-e2491ef9838a/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-11-12 02:15:39,641 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:15:39,971 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:15:39,971 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87af9375-da86-4182-90cf-e2491ef9838a/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-11-12 02:15:39,990 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87af9375-da86-4182-90cf-e2491ef9838a/bin/uautomizer-verify-uTZkv6EMXl/data/abf31ab63/13e92fdf81ce419582fef7fe39b40977/FLAG561844939 [2023-11-12 02:15:40,006 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87af9375-da86-4182-90cf-e2491ef9838a/bin/uautomizer-verify-uTZkv6EMXl/data/abf31ab63/13e92fdf81ce419582fef7fe39b40977 [2023-11-12 02:15:40,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:15:40,010 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:15:40,012 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:40,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:15:40,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:15:40,029 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:40" (1/1) ... [2023-11-12 02:15:40,030 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dde57cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:40, skipping insertion in model container [2023-11-12 02:15:40,030 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:40" (1/1) ... [2023-11-12 02:15:40,092 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:15:40,316 WARN L240 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_87af9375-da86-4182-90cf-e2491ef9838a/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2023-11-12 02:15:40,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:40,473 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:15:40,485 WARN L240 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_87af9375-da86-4182-90cf-e2491ef9838a/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2023-11-12 02:15:40,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:40,553 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:15:40,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:40 WrapperNode [2023-11-12 02:15:40,554 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:40,556 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:40,556 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:15:40,556 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:15:40,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:40" (1/1) ... [2023-11-12 02:15:40,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:40" (1/1) ... [2023-11-12 02:15:40,601 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2023-11-12 02:15:40,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:40,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:15:40,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:15:40,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:15:40,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:40" (1/1) ... [2023-11-12 02:15:40,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:40" (1/1) ... [2023-11-12 02:15:40,615 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:40" (1/1) ... [2023-11-12 02:15:40,616 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:40" (1/1) ... [2023-11-12 02:15:40,622 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:40" (1/1) ... [2023-11-12 02:15:40,624 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:40" (1/1) ... [2023-11-12 02:15:40,626 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:40" (1/1) ... [2023-11-12 02:15:40,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:40" (1/1) ... [2023-11-12 02:15:40,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:15:40,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:15:40,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:15:40,633 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:15:40,633 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:40" (1/1) ... [2023-11-12 02:15:40,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:40,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87af9375-da86-4182-90cf-e2491ef9838a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:40,667 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87af9375-da86-4182-90cf-e2491ef9838a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:15:40,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87af9375-da86-4182-90cf-e2491ef9838a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:15:40,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:15:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:15:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:15:40,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:15:40,714 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-12 02:15:40,714 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-12 02:15:40,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:15:40,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:15:40,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:15:40,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:15:40,717 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:15:40,888 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:15:40,890 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:15:41,070 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:15:41,078 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:15:41,078 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:15:41,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:41 BoogieIcfgContainer [2023-11-12 02:15:41,081 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:15:41,084 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:15:41,084 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:15:41,088 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:15:41,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:15:40" (1/3) ... [2023-11-12 02:15:41,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6df299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:41, skipping insertion in model container [2023-11-12 02:15:41,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:40" (2/3) ... [2023-11-12 02:15:41,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6df299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:41, skipping insertion in model container [2023-11-12 02:15:41,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:41" (3/3) ... [2023-11-12 02:15:41,091 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-11-12 02:15:41,101 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:15:41,113 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:15:41,113 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:15:41,114 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:15:41,172 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:15:41,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 75 transitions, 154 flow [2023-11-12 02:15:41,283 INFO L124 PetriNetUnfolderBase]: 2/74 cut-off events. [2023-11-12 02:15:41,284 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:15:41,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 2/74 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. 0/71 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2023-11-12 02:15:41,288 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 75 transitions, 154 flow [2023-11-12 02:15:41,300 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 61 transitions, 125 flow [2023-11-12 02:15:41,304 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:15:41,322 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 61 transitions, 125 flow [2023-11-12 02:15:41,332 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 61 transitions, 125 flow [2023-11-12 02:15:41,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 125 flow [2023-11-12 02:15:41,374 INFO L124 PetriNetUnfolderBase]: 1/61 cut-off events. [2023-11-12 02:15:41,374 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:15:41,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 1/61 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. 0/60 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2023-11-12 02:15:41,375 INFO L119 LiptonReduction]: Number of co-enabled transitions 360 [2023-11-12 02:15:44,388 INFO L134 LiptonReduction]: Checked pairs total: 1123 [2023-11-12 02:15:44,388 INFO L136 LiptonReduction]: Total number of compositions: 51 [2023-11-12 02:15:44,404 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:15:44,412 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=LoopHeads, 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;@10a201b4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:15:44,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-12 02:15:44,416 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:15:44,416 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2023-11-12 02:15:44,417 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:15:44,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:15:44,418 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:15:44,418 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-12 02:15:44,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:44,424 INFO L85 PathProgramCache]: Analyzing trace with hash 237997632, now seen corresponding path program 1 times [2023-11-12 02:15:44,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:44,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767793980] [2023-11-12 02:15:44,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:44,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:15:44,569 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:15:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:15:44,626 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:15:44,629 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:15:44,630 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-12 02:15:44,632 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-11-12 02:15:44,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:15:44,634 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 02:15:44,645 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:15:44,645 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:15:44,666 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated [2023-11-12 02:15:44,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:15:44 BasicIcfg [2023-11-12 02:15:44,672 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:15:44,672 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:15:44,672 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:15:44,673 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:15:44,673 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:41" (3/4) ... [2023-11-12 02:15:44,674 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-12 02:15:44,679 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated [2023-11-12 02:15:44,711 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87af9375-da86-4182-90cf-e2491ef9838a/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:15:44,711 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:15:44,713 INFO L158 Benchmark]: Toolchain (without parser) took 4702.08ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 140.8MB in the beginning and 133.8MB in the end (delta: 7.0MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2023-11-12 02:15:44,713 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:15:44,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 542.95ms. Allocated memory is still 176.2MB. Free memory was 140.8MB in the beginning and 132.2MB in the end (delta: 8.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 02:15:44,715 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.07ms. Allocated memory is still 176.2MB. Free memory was 131.3MB in the beginning and 130.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:15:44,715 INFO L158 Benchmark]: Boogie Preprocessor took 29.01ms. Allocated memory is still 176.2MB. Free memory was 130.1MB in the beginning and 128.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:15:44,716 INFO L158 Benchmark]: RCFGBuilder took 448.92ms. Allocated memory is still 176.2MB. Free memory was 128.2MB in the beginning and 114.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:15:44,717 INFO L158 Benchmark]: TraceAbstraction took 3587.69ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 113.6MB in the beginning and 137.0MB in the end (delta: -23.4MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2023-11-12 02:15:44,717 INFO L158 Benchmark]: Witness Printer took 39.15ms. Allocated memory is still 211.8MB. Free memory was 135.9MB in the beginning and 133.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:15:44,721 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 542.95ms. Allocated memory is still 176.2MB. Free memory was 140.8MB in the beginning and 132.2MB in the end (delta: 8.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.07ms. Allocated memory is still 176.2MB. Free memory was 131.3MB in the beginning and 130.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.01ms. Allocated memory is still 176.2MB. Free memory was 130.1MB in the beginning and 128.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 448.92ms. Allocated memory is still 176.2MB. Free memory was 128.2MB in the beginning and 114.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3587.69ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 113.6MB in the beginning and 137.0MB in the end (delta: -23.4MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Witness Printer took 39.15ms. Allocated memory is still 211.8MB. Free memory was 135.9MB in the beginning and 133.8MB 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 64 PlacesBefore, 18 PlacesAfterwards, 61 TransitionsBefore, 15 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 6 FixpointIterations, 31 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 51 TotalNumberOfCompositions, 1123 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 436, independent: 301, independent conditional: 0, independent unconditional: 301, dependent: 135, dependent conditional: 0, dependent unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 186, independent: 164, independent conditional: 0, independent unconditional: 164, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 436, independent: 137, independent conditional: 0, independent unconditional: 137, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 186, unknown conditional: 0, unknown unconditional: 186] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, 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}, B={4:0}, arg={0:0}, g=42, id={5:0}, r=0] [L700] COND FALSE 0 !(\read(r)) [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [A={3:0}, B={4:0}, \old(cond)=0, arg={0:0}, cond=0, g=42] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 86 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: 3.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 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! [2023-11-12 02:15:44,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87af9375-da86-4182-90cf-e2491ef9838a/bin/uautomizer-verify-uTZkv6EMXl/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