./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/reorder_2.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_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/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_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/reorder_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/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_6113a342-bb94-4c10-b185-9393dec63095/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 b8118921f4e94a266cc060fbf2fdaa97ed8f96343f174115bf05a8f09a1b77a8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:33:45,097 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:33:45,224 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:33:45,233 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:33:45,234 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:33:45,258 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:33:45,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:33:45,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:33:45,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:33:45,262 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:33:45,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:33:45,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:33:45,264 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:33:45,265 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:33:45,266 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:33:45,266 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:33:45,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:33:45,267 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:33:45,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:33:45,269 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:33:45,269 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:33:45,272 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:33:45,273 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:33:45,273 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:33:45,274 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:33:45,274 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:33:45,275 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:33:45,276 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:33:45,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:33:45,277 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:33:45,278 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:33:45,279 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:33:45,279 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:33:45,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:33:45,280 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:33:45,280 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:33:45,280 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:33:45,280 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:33:45,281 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:33:45,281 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_6113a342-bb94-4c10-b185-9393dec63095/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8118921f4e94a266cc060fbf2fdaa97ed8f96343f174115bf05a8f09a1b77a8 [2023-11-12 02:33:45,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:33:45,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:33:45,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:33:45,674 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:33:45,675 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:33:45,676 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread/reorder_2.i [2023-11-12 02:33:48,887 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:33:49,343 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:33:49,343 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/sv-benchmarks/c/pthread/reorder_2.i [2023-11-12 02:33:49,375 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/data/707a41fa9/9e5a59cf9f674bd89163cd111335d39d/FLAGd72956531 [2023-11-12 02:33:49,401 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/data/707a41fa9/9e5a59cf9f674bd89163cd111335d39d [2023-11-12 02:33:49,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:33:49,415 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:33:49,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:33:49,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:33:49,424 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:33:49,424 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:49" (1/1) ... [2023-11-12 02:33:49,426 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15602563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:49, skipping insertion in model container [2023-11-12 02:33:49,426 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:49" (1/1) ... [2023-11-12 02:33:49,490 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:33:50,259 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_6113a342-bb94-4c10-b185-9393dec63095/sv-benchmarks/c/pthread/reorder_2.i[59859,59872] [2023-11-12 02:33:50,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:33:50,278 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:33:50,355 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_6113a342-bb94-4c10-b185-9393dec63095/sv-benchmarks/c/pthread/reorder_2.i[59859,59872] [2023-11-12 02:33:50,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:33:50,477 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:33:50,486 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:33:50,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:50 WrapperNode [2023-11-12 02:33:50,487 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:33:50,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:33:50,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:33:50,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:33:50,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:50" (1/1) ... [2023-11-12 02:33:50,538 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:50" (1/1) ... [2023-11-12 02:33:50,604 INFO L138 Inliner]: procedures = 372, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 165 [2023-11-12 02:33:50,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:33:50,605 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:33:50,606 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:33:50,606 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:33:50,617 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:50" (1/1) ... [2023-11-12 02:33:50,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:50" (1/1) ... [2023-11-12 02:33:50,636 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:50" (1/1) ... [2023-11-12 02:33:50,648 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:50" (1/1) ... [2023-11-12 02:33:50,658 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:50" (1/1) ... [2023-11-12 02:33:50,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:50" (1/1) ... [2023-11-12 02:33:50,666 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:50" (1/1) ... [2023-11-12 02:33:50,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:50" (1/1) ... [2023-11-12 02:33:50,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:33:50,695 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:33:50,695 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:33:50,695 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:33:50,696 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:50" (1/1) ... [2023-11-12 02:33:50,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:33:50,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:50,739 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:33:50,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:33:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-11-12 02:33:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:33:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:33:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:33:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:33:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2023-11-12 02:33:50,783 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2023-11-12 02:33:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:33:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:33:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2023-11-12 02:33:50,783 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2023-11-12 02:33:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:33:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:33:50,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:33:50,790 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 02:33:51,004 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:33:51,007 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:33:51,452 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:33:51,476 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:33:51,476 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:33:51,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:51 BoogieIcfgContainer [2023-11-12 02:33:51,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:33:51,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:33:51,485 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:33:51,489 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:33:51,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:33:49" (1/3) ... [2023-11-12 02:33:51,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614a9be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:33:51, skipping insertion in model container [2023-11-12 02:33:51,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:50" (2/3) ... [2023-11-12 02:33:51,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614a9be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:33:51, skipping insertion in model container [2023-11-12 02:33:51,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:51" (3/3) ... [2023-11-12 02:33:51,493 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2.i [2023-11-12 02:33:51,505 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:33:51,517 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:33:51,518 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:33:51,518 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:33:51,599 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-12 02:33:51,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 189 transitions, 398 flow [2023-11-12 02:33:51,785 INFO L124 PetriNetUnfolderBase]: 37/380 cut-off events. [2023-11-12 02:33:51,785 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-12 02:33:51,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 380 events. 37/380 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1349 event pairs, 0 based on Foata normal form. 0/335 useless extension candidates. Maximal degree in co-relation 204. Up to 8 conditions per place. [2023-11-12 02:33:51,795 INFO L82 GeneralOperation]: Start removeDead. Operand has 177 places, 189 transitions, 398 flow [2023-11-12 02:33:51,803 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 177 places, 187 transitions, 388 flow [2023-11-12 02:33:51,807 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:33:51,823 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 177 places, 187 transitions, 388 flow [2023-11-12 02:33:51,826 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 177 places, 187 transitions, 388 flow [2023-11-12 02:33:51,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 187 transitions, 388 flow [2023-11-12 02:33:51,925 INFO L124 PetriNetUnfolderBase]: 31/352 cut-off events. [2023-11-12 02:33:51,925 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-12 02:33:51,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 352 events. 31/352 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1185 event pairs, 0 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 208. Up to 8 conditions per place. [2023-11-12 02:33:51,939 INFO L119 LiptonReduction]: Number of co-enabled transitions 2510 [2023-11-12 02:34:11,180 INFO L134 LiptonReduction]: Checked pairs total: 3001 [2023-11-12 02:34:11,181 INFO L136 LiptonReduction]: Total number of compositions: 207 [2023-11-12 02:34:11,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:34:11,212 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;@9ec5a09, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:34:11,213 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-12 02:34:11,218 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:34:11,219 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-11-12 02:34:11,219 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:34:11,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:11,220 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:34:11,221 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-12 02:34:11,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:11,229 INFO L85 PathProgramCache]: Analyzing trace with hash 666772057, now seen corresponding path program 1 times [2023-11-12 02:34:11,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:11,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916466843] [2023-11-12 02:34:11,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:11,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:11,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:11,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:11,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916466843] [2023-11-12 02:34:11,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916466843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:11,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:11,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:34:11,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242343988] [2023-11-12 02:34:11,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:11,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:34:11,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:11,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:34:11,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:34:11,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 396 [2023-11-12 02:34:11,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 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) [2023-11-12 02:34:11,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:34:11,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 396 [2023-11-12 02:34:11,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:34:12,047 INFO L124 PetriNetUnfolderBase]: 118/270 cut-off events. [2023-11-12 02:34:12,047 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-12 02:34:12,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 557 conditions, 270 events. 118/270 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1104 event pairs, 29 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 380. Up to 201 conditions per place. [2023-11-12 02:34:12,055 INFO L140 encePairwiseOnDemand]: 393/396 looper letters, 31 selfloop transitions, 2 changer transitions 0/35 dead transitions. [2023-11-12 02:34:12,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 35 transitions, 153 flow [2023-11-12 02:34:12,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:34:12,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:34:12,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 538 transitions. [2023-11-12 02:34:12,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45286195286195285 [2023-11-12 02:34:12,087 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 538 transitions. [2023-11-12 02:34:12,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 538 transitions. [2023-11-12 02:34:12,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:12,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 538 transitions. [2023-11-12 02:34:12,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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) [2023-11-12 02:34:12,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 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) [2023-11-12 02:34:12,110 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 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) [2023-11-12 02:34:12,113 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 60 flow. Second operand 3 states and 538 transitions. [2023-11-12 02:34:12,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 35 transitions, 153 flow [2023-11-12 02:34:12,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 35 transitions, 153 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:34:12,121 INFO L231 Difference]: Finished difference. Result has 29 places, 23 transitions, 68 flow [2023-11-12 02:34:12,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=29, PETRI_TRANSITIONS=23} [2023-11-12 02:34:12,128 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2023-11-12 02:34:12,128 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 23 transitions, 68 flow [2023-11-12 02:34:12,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 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) [2023-11-12 02:34:12,129 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:12,129 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-12 02:34:12,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:34:12,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-12 02:34:12,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:12,132 INFO L85 PathProgramCache]: Analyzing trace with hash -795832555, now seen corresponding path program 1 times [2023-11-12 02:34:12,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:12,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840709613] [2023-11-12 02:34:12,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:12,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:12,242 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:34:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:12,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:34:12,392 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:34:12,394 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-11-12 02:34:12,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-11-12 02:34:12,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-12 02:34:12,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-11-12 02:34:12,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:34:12,402 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 02:34:12,406 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 02:34:12,406 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-12 02:34:12,451 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-12 02:34:12,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 211 transitions, 466 flow [2023-11-12 02:34:12,657 INFO L124 PetriNetUnfolderBase]: 149/1197 cut-off events. [2023-11-12 02:34:12,657 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-12 02:34:12,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1286 conditions, 1197 events. 149/1197 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 6610 event pairs, 2 based on Foata normal form. 0/1055 useless extension candidates. Maximal degree in co-relation 695. Up to 32 conditions per place. [2023-11-12 02:34:12,664 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 211 transitions, 466 flow [2023-11-12 02:34:12,671 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 211 transitions, 466 flow [2023-11-12 02:34:12,671 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:34:12,672 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 198 places, 211 transitions, 466 flow [2023-11-12 02:34:12,673 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 198 places, 211 transitions, 466 flow [2023-11-12 02:34:12,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 211 transitions, 466 flow [2023-11-12 02:34:12,893 INFO L124 PetriNetUnfolderBase]: 149/1197 cut-off events. [2023-11-12 02:34:12,893 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-12 02:34:12,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1286 conditions, 1197 events. 149/1197 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 6610 event pairs, 2 based on Foata normal form. 0/1055 useless extension candidates. Maximal degree in co-relation 695. Up to 32 conditions per place. [2023-11-12 02:34:12,924 INFO L119 LiptonReduction]: Number of co-enabled transitions 6360 [2023-11-12 02:34:30,349 INFO L134 LiptonReduction]: Checked pairs total: 11691 [2023-11-12 02:34:30,349 INFO L136 LiptonReduction]: Total number of compositions: 220 [2023-11-12 02:34:30,351 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:34:30,353 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;@9ec5a09, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:34:30,353 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-12 02:34:30,357 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:34:30,358 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-11-12 02:34:30,358 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:34:30,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:30,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:34:30,359 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-12 02:34:30,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:30,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1097045820, now seen corresponding path program 1 times [2023-11-12 02:34:30,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:30,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001623277] [2023-11-12 02:34:30,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:30,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:30,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:30,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:30,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001623277] [2023-11-12 02:34:30,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001623277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:30,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:30,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:34:30,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036217184] [2023-11-12 02:34:30,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:30,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:34:30,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:30,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:34:30,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:34:30,478 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 431 [2023-11-12 02:34:30,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 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) [2023-11-12 02:34:30,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:34:30,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 431 [2023-11-12 02:34:30,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:34:31,460 INFO L124 PetriNetUnfolderBase]: 4447/6838 cut-off events. [2023-11-12 02:34:31,461 INFO L125 PetriNetUnfolderBase]: For 1290/1290 co-relation queries the response was YES. [2023-11-12 02:34:31,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14147 conditions, 6838 events. 4447/6838 cut-off events. For 1290/1290 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 36991 event pairs, 1433 based on Foata normal form. 0/5176 useless extension candidates. Maximal degree in co-relation 10034. Up to 6226 conditions per place. [2023-11-12 02:34:31,511 INFO L140 encePairwiseOnDemand]: 426/431 looper letters, 53 selfloop transitions, 3 changer transitions 0/62 dead transitions. [2023-11-12 02:34:31,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 62 transitions, 305 flow [2023-11-12 02:34:31,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:34:31,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:34:31,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 595 transitions. [2023-11-12 02:34:31,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46017014694508895 [2023-11-12 02:34:31,515 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 595 transitions. [2023-11-12 02:34:31,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 595 transitions. [2023-11-12 02:34:31,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:31,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 595 transitions. [2023-11-12 02:34:31,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 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) [2023-11-12 02:34:31,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 431.0) internal successors, (1724), 4 states have internal predecessors, (1724), 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) [2023-11-12 02:34:31,524 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 431.0) internal successors, (1724), 4 states have internal predecessors, (1724), 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) [2023-11-12 02:34:31,524 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 122 flow. Second operand 3 states and 595 transitions. [2023-11-12 02:34:31,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 62 transitions, 305 flow [2023-11-12 02:34:31,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 62 transitions, 305 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:34:31,542 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 143 flow [2023-11-12 02:34:31,542 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=431, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2023-11-12 02:34:31,544 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2023-11-12 02:34:31,545 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 143 flow [2023-11-12 02:34:31,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 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) [2023-11-12 02:34:31,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:34:31,546 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:31,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:34:31,546 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-12 02:34:31,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:31,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1688610940, now seen corresponding path program 1 times [2023-11-12 02:34:31,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:31,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173642218] [2023-11-12 02:34:31,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:31,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:31,659 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:34:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:31,725 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:34:31,726 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:34:31,726 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-11-12 02:34:31,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-11-12 02:34:31,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-11-12 02:34:31,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-11-12 02:34:31,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-11-12 02:34:31,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:34:31,734 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 02:34:31,738 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-11-12 02:34:31,739 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:34:31,796 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-12 02:34:31,797 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-12 02:34:31,797 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre45 could not be translated [2023-11-12 02:34:31,797 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-12 02:34:31,798 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-12 02:34:31,798 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet46 could not be translated [2023-11-12 02:34:31,798 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-12 02:34:31,799 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre45 could not be translated [2023-11-12 02:34:31,799 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-12 02:34:31,800 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-12 02:34:31,801 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret47 could not be translated [2023-11-12 02:34:31,801 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-12 02:34:31,803 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-12 02:34:31,804 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret47 could not be translated [2023-11-12 02:34:31,804 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-12 02:34:31,805 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-12 02:34:31,805 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-12 02:34:31,806 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre50 could not be translated [2023-11-12 02:34:31,806 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret47 could not be translated [2023-11-12 02:34:31,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:34:31 BasicIcfg [2023-11-12 02:34:31,827 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:34:31,827 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:34:31,828 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:34:31,828 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:34:31,828 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:51" (3/4) ... [2023-11-12 02:34:31,832 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:34:31,834 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:34:31,838 INFO L158 Benchmark]: Toolchain (without parser) took 42419.34ms. Allocated memory was 165.7MB in the beginning and 297.8MB in the end (delta: 132.1MB). Free memory was 132.5MB in the beginning and 124.7MB in the end (delta: 7.8MB). Peak memory consumption was 142.0MB. Max. memory is 16.1GB. [2023-11-12 02:34:31,839 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:34:31,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1071.79ms. Allocated memory is still 165.7MB. Free memory was 131.9MB in the beginning and 92.6MB in the end (delta: 39.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-12 02:34:31,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.92ms. Allocated memory is still 165.7MB. Free memory was 92.6MB in the beginning and 89.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:34:31,844 INFO L158 Benchmark]: Boogie Preprocessor took 88.63ms. Allocated memory is still 165.7MB. Free memory was 89.5MB in the beginning and 87.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:34:31,844 INFO L158 Benchmark]: RCFGBuilder took 785.07ms. Allocated memory is still 165.7MB. Free memory was 87.4MB in the beginning and 122.8MB in the end (delta: -35.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2023-11-12 02:34:31,845 INFO L158 Benchmark]: TraceAbstraction took 40341.69ms. Allocated memory was 165.7MB in the beginning and 297.8MB in the end (delta: 132.1MB). Free memory was 122.8MB in the beginning and 125.7MB in the end (delta: -3.0MB). Peak memory consumption was 130.0MB. Max. memory is 16.1GB. [2023-11-12 02:34:31,845 INFO L158 Benchmark]: Witness Printer took 6.42ms. Allocated memory is still 297.8MB. Free memory was 125.7MB in the beginning and 124.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:34:31,851 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1071.79ms. Allocated memory is still 165.7MB. Free memory was 131.9MB in the beginning and 92.6MB in the end (delta: 39.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.92ms. Allocated memory is still 165.7MB. Free memory was 92.6MB in the beginning and 89.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.63ms. Allocated memory is still 165.7MB. Free memory was 89.5MB in the beginning and 87.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 785.07ms. Allocated memory is still 165.7MB. Free memory was 87.4MB in the beginning and 122.8MB in the end (delta: -35.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * TraceAbstraction took 40341.69ms. Allocated memory was 165.7MB in the beginning and 297.8MB in the end (delta: 132.1MB). Free memory was 122.8MB in the beginning and 125.7MB in the end (delta: -3.0MB). Peak memory consumption was 130.0MB. Max. memory is 16.1GB. * Witness Printer took 6.42ms. Allocated memory is still 297.8MB. Free memory was 125.7MB in the beginning and 124.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret47 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: 19.4s, 177 PlacesBefore, 26 PlacesAfterwards, 187 TransitionsBefore, 23 TransitionsAfterwards, 2510 CoEnabledTransitionPairs, 8 FixpointIterations, 69 TrivialSequentialCompositions, 89 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 26 ConcurrentYvCompositions, 13 ChoiceCompositions, 207 TotalNumberOfCompositions, 3001 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2336, independent: 2302, independent conditional: 0, independent unconditional: 2302, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1410, independent: 1400, independent conditional: 0, independent unconditional: 1400, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2336, independent: 902, independent conditional: 0, independent unconditional: 902, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 1410, unknown conditional: 0, unknown unconditional: 1410] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.7s, 198 PlacesBefore, 40 PlacesAfterwards, 211 TransitionsBefore, 39 TransitionsAfterwards, 6360 CoEnabledTransitionPairs, 8 FixpointIterations, 72 TrivialSequentialCompositions, 91 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 32 ConcurrentYvCompositions, 14 ChoiceCompositions, 220 TotalNumberOfCompositions, 11691 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8983, independent: 8893, independent conditional: 0, independent unconditional: 8893, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3843, independent: 3820, independent conditional: 0, independent unconditional: 3820, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8983, independent: 5073, independent conditional: 0, independent unconditional: 5073, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 3843, unknown conditional: 0, unknown unconditional: 3843] , Statistics on independence cache: Total cache size (in pairs): 134, Positive cache size: 127, Positive conditional cache size: 0, Positive unconditional cache size: 127, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 1295]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of sscanf at line 1251. Possible FailurePath: [L1236] 0 static int iSet = 2; [L1237] 0 static int iCheck = 2; [L1238] 0 static int a = 0; [L1239] 0 static int b = 0; [L1245] 0 int i, err; [L1246] COND TRUE 0 argc != 1 [L1247] COND FALSE 0 !(argc != 3) [L1251] 0 argv[1] [L1252] 0 argv[2] [L1255] EXPR 0 \read(iSet) [L1255] 0 iSet > 100000 || iCheck > 100000 [L1255] EXPR 0 \read(iCheck) [L1255] 0 iSet > 100000 || iCheck > 100000 [L1255] COND FALSE 0 !(iSet > 100000 || iCheck > 100000) [L1258] EXPR 0 \read(iSet) [L1258] 0 pthread_t setPool[iSet]; [L1259] EXPR 0 \read(iCheck) [L1259] 0 pthread_t checkPool[iCheck]; [L1260] 0 i = 0 VAL [\old(argc)=3, a=0, argc=3, argv={57:56}, argv={57:56}, b=0, checkPool={11:0}, i=0, iCheck={10:0}, iSet={9:0}, setPool={13:0}] [L1260] EXPR 0 \read(iSet) [L1260] COND TRUE 0 i < iSet [L1261] EXPR, FCALL, FORK 0 pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, a=0, argc=3, argv={57:56}, argv={57:56}, b=0, checkPool={11:0}, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, setPool={13:0}] [L1261] EXPR 0 err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, a=0, argc=3, argv={57:56}, argv={57:56}, b=0, checkPool={11:0}, err=0, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, setPool={13:0}] [L1261] COND FALSE 0 !(0 != (err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)))) [L1260] 0 i++ VAL [\old(argc)=3, a=0, argc=3, argv={57:56}, argv={57:56}, b=0, checkPool={11:0}, err=0, i=1, iCheck={10:0}, iSet={9:0}, param={0:0}, setPool={13:0}] [L1260] EXPR 0 \read(iSet) [L1260] COND FALSE 0 !(i < iSet) [L1266] 0 i = 0 VAL [\old(argc)=3, a=0, argc=3, argv={57:56}, argv={57:56}, b=0, checkPool={11:0}, err=0, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, setPool={13:0}] [L1266] EXPR 0 \read(iCheck) [L1266] COND TRUE 0 i < iCheck [L1267-L1268] FCALL, FORK 0 pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) VAL [\old(argc)=3, a=0, argc=3, argv={57:56}, argv={57:56}, b=0, checkPool={11:0}, err=0, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, setPool={13:0}] [L1288] 1 a = 1 VAL [a=1, b=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, param={0:0}] [L1293] COND TRUE 2 ! ((a == 0 && b == 0) || (a == 1 && b == -1)) [L1295] 2 reach_error() VAL [a=1, b=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}] - UnprovableResult [Line: 1267]: 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. - UnprovableResult [Line: 1261]: 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 5 procedures, 190 locations, 4 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: 20.8s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 19.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 2 mSDtfsCounter, 46 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=68occurred 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, 0.4s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 207 locations, 5 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: 19.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 17.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 80 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 2 mSDtfsCounter, 80 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=143occurred 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, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 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 could not prove your program: unable to determine feasibility of some traces [2023-11-12 02:34:31,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/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_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/reorder_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/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 b8118921f4e94a266cc060fbf2fdaa97ed8f96343f174115bf05a8f09a1b77a8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:34:34,562 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:34:34,691 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-12 02:34:34,700 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:34:34,701 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:34:34,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:34:34,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:34:34,745 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:34:34,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:34:34,751 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:34:34,752 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:34:34,753 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:34:34,753 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:34:34,756 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:34:34,756 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:34:34,756 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:34:34,757 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:34:34,757 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:34:34,758 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:34:34,759 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:34:34,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:34:34,760 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:34:34,760 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:34:34,761 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:34:34,761 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:34:34,762 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:34:34,762 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:34:34,763 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:34:34,763 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:34:34,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:34:34,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:34:34,765 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:34:34,766 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:34:34,766 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:34:34,766 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:34:34,767 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:34:34,767 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:34:34,767 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:34:34,767 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:34:34,768 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:34:34,769 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:34:34,769 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:34:34,769 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_6113a342-bb94-4c10-b185-9393dec63095/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8118921f4e94a266cc060fbf2fdaa97ed8f96343f174115bf05a8f09a1b77a8 [2023-11-12 02:34:35,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:34:35,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:34:35,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:34:35,241 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:34:35,244 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:34:35,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread/reorder_2.i [2023-11-12 02:34:38,499 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:34:38,932 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:34:38,932 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/sv-benchmarks/c/pthread/reorder_2.i [2023-11-12 02:34:38,965 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/data/9e96bd5da/fc49ebcbaf794eeca227665a355d8cbd/FLAG216313f0d [2023-11-12 02:34:38,987 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/data/9e96bd5da/fc49ebcbaf794eeca227665a355d8cbd [2023-11-12 02:34:38,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:34:38,995 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:34:38,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:34:38,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:34:39,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:34:39,005 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:34:38" (1/1) ... [2023-11-12 02:34:39,006 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c383a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:39, skipping insertion in model container [2023-11-12 02:34:39,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:34:38" (1/1) ... [2023-11-12 02:34:39,079 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:34:39,773 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_6113a342-bb94-4c10-b185-9393dec63095/sv-benchmarks/c/pthread/reorder_2.i[59859,59872] [2023-11-12 02:34:39,778 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:34:39,792 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:34:39,930 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_6113a342-bb94-4c10-b185-9393dec63095/sv-benchmarks/c/pthread/reorder_2.i[59859,59872] [2023-11-12 02:34:39,931 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:34:40,059 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:34:40,067 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:34:40,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:40 WrapperNode [2023-11-12 02:34:40,068 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:34:40,069 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:34:40,069 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:34:40,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:34:40,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:40" (1/1) ... [2023-11-12 02:34:40,111 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:40" (1/1) ... [2023-11-12 02:34:40,142 INFO L138 Inliner]: procedures = 376, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 159 [2023-11-12 02:34:40,143 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:34:40,144 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:34:40,144 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:34:40,144 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:34:40,154 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:40" (1/1) ... [2023-11-12 02:34:40,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:40" (1/1) ... [2023-11-12 02:34:40,160 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:40" (1/1) ... [2023-11-12 02:34:40,161 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:40" (1/1) ... [2023-11-12 02:34:40,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:40" (1/1) ... [2023-11-12 02:34:40,178 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:40" (1/1) ... [2023-11-12 02:34:40,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:40" (1/1) ... [2023-11-12 02:34:40,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:40" (1/1) ... [2023-11-12 02:34:40,189 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:34:40,190 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:34:40,191 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:34:40,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:34:40,192 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:40" (1/1) ... [2023-11-12 02:34:40,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:34:40,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:34:40,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:34:40,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6113a342-bb94-4c10-b185-9393dec63095/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:34:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 02:34:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-11-12 02:34:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:34:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:34:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:34:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 02:34:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:34:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-12 02:34:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2023-11-12 02:34:40,296 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2023-11-12 02:34:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:34:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2023-11-12 02:34:40,297 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2023-11-12 02:34:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:34:40,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:34:40,298 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 02:34:40,564 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:34:40,566 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation