./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi005.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_846accf4-9d75-4d88-ad32-e02ec832c561/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_846accf4-9d75-4d88-ad32-e02ec832c561/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_846accf4-9d75-4d88-ad32-e02ec832c561/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_846accf4-9d75-4d88-ad32-e02ec832c561/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi005.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_846accf4-9d75-4d88-ad32-e02ec832c561/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_846accf4-9d75-4d88-ad32-e02ec832c561/bin/uautomizer-verify-uCwYo4JHxu --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 0f51f8e84e29dbf7268818c0bd5364f23c52e80cf2778700bc9afe3da3c44b42 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:02:10,806 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:02:10,937 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_846accf4-9d75-4d88-ad32-e02ec832c561/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 08:02:10,941 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:02:10,942 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:02:10,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:02:10,967 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:02:10,968 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:02:10,969 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:02:10,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:02:10,970 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:02:10,971 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:02:10,971 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:02:10,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:02:10,973 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:02:10,973 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:02:10,974 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:02:10,974 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:02:10,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:02:10,975 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:02:10,976 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:02:10,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:02:10,977 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:02:10,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:02:10,978 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:02:10,978 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:02:10,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:02:10,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:02:10,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:10,980 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:02:10,980 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:02:10,981 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:02:10,981 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:02:10,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:02:10,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:02:10,983 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:02:10,983 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:02:10,983 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:02:10,984 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:02:10,984 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_846accf4-9d75-4d88-ad32-e02ec832c561/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_846accf4-9d75-4d88-ad32-e02ec832c561/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f51f8e84e29dbf7268818c0bd5364f23c52e80cf2778700bc9afe3da3c44b42 [2023-11-19 08:02:11,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:02:11,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:02:11,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:02:11,286 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:02:11,287 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:02:11,288 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_846accf4-9d75-4d88-ad32-e02ec832c561/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/rfi005.i [2023-11-19 08:02:14,468 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:02:14,777 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:02:14,778 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_846accf4-9d75-4d88-ad32-e02ec832c561/sv-benchmarks/c/pthread-wmm/rfi005.i [2023-11-19 08:02:14,813 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_846accf4-9d75-4d88-ad32-e02ec832c561/bin/uautomizer-verify-uCwYo4JHxu/data/f9fe734cd/000784f2891240429b54b7d95237fd5e/FLAGa529c0e98 [2023-11-19 08:02:14,839 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_846accf4-9d75-4d88-ad32-e02ec832c561/bin/uautomizer-verify-uCwYo4JHxu/data/f9fe734cd/000784f2891240429b54b7d95237fd5e [2023-11-19 08:02:14,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:02:14,850 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:02:14,852 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:14,853 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:02:14,859 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:02:14,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:14" (1/1) ... [2023-11-19 08:02:14,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@527f5fc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:14, skipping insertion in model container [2023-11-19 08:02:14,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:14" (1/1) ... [2023-11-19 08:02:14,949 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:02:15,187 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_846accf4-9d75-4d88-ad32-e02ec832c561/sv-benchmarks/c/pthread-wmm/rfi005.i[983,996] [2023-11-19 08:02:15,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:15,576 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:02:15,592 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_846accf4-9d75-4d88-ad32-e02ec832c561/sv-benchmarks/c/pthread-wmm/rfi005.i[983,996] [2023-11-19 08:02:15,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:15,725 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:02:15,726 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:02:15,734 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:02:15,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:15 WrapperNode [2023-11-19 08:02:15,735 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:15,736 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:15,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:02:15,737 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:02:15,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:15" (1/1) ... [2023-11-19 08:02:15,785 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:15" (1/1) ... [2023-11-19 08:02:15,836 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 167 [2023-11-19 08:02:15,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:15,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:02:15,843 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:02:15,843 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:02:15,854 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:15" (1/1) ... [2023-11-19 08:02:15,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:15" (1/1) ... [2023-11-19 08:02:15,858 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:15" (1/1) ... [2023-11-19 08:02:15,858 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:15" (1/1) ... [2023-11-19 08:02:15,871 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:15" (1/1) ... [2023-11-19 08:02:15,873 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:15" (1/1) ... [2023-11-19 08:02:15,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:15" (1/1) ... [2023-11-19 08:02:15,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:15" (1/1) ... [2023-11-19 08:02:15,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:02:15,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:02:15,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:02:15,886 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:02:15,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:15" (1/1) ... [2023-11-19 08:02:15,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:15,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_846accf4-9d75-4d88-ad32-e02ec832c561/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:15,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_846accf4-9d75-4d88-ad32-e02ec832c561/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:15,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_846accf4-9d75-4d88-ad32-e02ec832c561/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:02:15,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:02:15,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 08:02:15,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:02:15,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:02:15,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:02:15,985 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 08:02:15,986 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 08:02:15,986 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 08:02:15,986 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 08:02:15,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:02:15,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 08:02:15,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:02:15,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:02:15,988 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 08:02:16,127 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:02:16,129 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:02:16,544 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:02:16,852 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:02:16,853 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:02:16,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:16 BoogieIcfgContainer [2023-11-19 08:02:16,858 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:02:16,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:02:16,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:02:16,867 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:02:16,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:02:14" (1/3) ... [2023-11-19 08:02:16,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8284e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:16, skipping insertion in model container [2023-11-19 08:02:16,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:15" (2/3) ... [2023-11-19 08:02:16,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8284e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:16, skipping insertion in model container [2023-11-19 08:02:16,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:16" (3/3) ... [2023-11-19 08:02:16,873 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi005.i [2023-11-19 08:02:16,884 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:02:16,896 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:02:16,897 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 08:02:16,897 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:02:16,969 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 08:02:17,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 97 transitions, 202 flow [2023-11-19 08:02:17,079 INFO L124 PetriNetUnfolderBase]: 3/95 cut-off events. [2023-11-19 08:02:17,079 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:02:17,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 95 events. 3/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2023-11-19 08:02:17,087 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 97 transitions, 202 flow [2023-11-19 08:02:17,092 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 95 transitions, 196 flow [2023-11-19 08:02:17,096 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:02:17,114 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 95 transitions, 196 flow [2023-11-19 08:02:17,119 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 95 transitions, 196 flow [2023-11-19 08:02:17,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 95 transitions, 196 flow [2023-11-19 08:02:17,151 INFO L124 PetriNetUnfolderBase]: 3/95 cut-off events. [2023-11-19 08:02:17,151 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:02:17,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 95 events. 3/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2023-11-19 08:02:17,155 INFO L119 LiptonReduction]: Number of co-enabled transitions 1544 [2023-11-19 08:02:21,436 INFO L134 LiptonReduction]: Checked pairs total: 3672 [2023-11-19 08:02:21,436 INFO L136 LiptonReduction]: Total number of compositions: 86 [2023-11-19 08:02:21,463 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:02:21,470 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;@383f27d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:02:21,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-19 08:02:21,477 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:02:21,477 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2023-11-19 08:02:21,477 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:02:21,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:02:21,478 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 08:02:21,479 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-19 08:02:21,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:21,484 INFO L85 PathProgramCache]: Analyzing trace with hash 510837827, now seen corresponding path program 1 times [2023-11-19 08:02:21,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:21,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080026552] [2023-11-19 08:02:21,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:21,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:22,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:22,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:22,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080026552] [2023-11-19 08:02:22,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080026552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:22,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:22,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:02:22,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032817190] [2023-11-19 08:02:22,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:22,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:02:22,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:22,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:02:22,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:02:22,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 183 [2023-11-19 08:02:22,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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) [2023-11-19 08:02:22,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:02:22,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 183 [2023-11-19 08:02:22,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:02:22,332 INFO L124 PetriNetUnfolderBase]: 294/527 cut-off events. [2023-11-19 08:02:22,333 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 08:02:22,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1040 conditions, 527 events. 294/527 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2195 event pairs, 24 based on Foata normal form. 28/471 useless extension candidates. Maximal degree in co-relation 1030. Up to 439 conditions per place. [2023-11-19 08:02:22,345 INFO L140 encePairwiseOnDemand]: 179/183 looper letters, 26 selfloop transitions, 2 changer transitions 0/29 dead transitions. [2023-11-19 08:02:22,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 120 flow [2023-11-19 08:02:22,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:02:22,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:02:22,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 274 transitions. [2023-11-19 08:02:22,372 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4990892531876138 [2023-11-19 08:02:22,373 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 274 transitions. [2023-11-19 08:02:22,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 274 transitions. [2023-11-19 08:02:22,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:02:22,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 274 transitions. [2023-11-19 08:02:22,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2023-11-19 08:02:22,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 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) [2023-11-19 08:02:22,392 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 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) [2023-11-19 08:02:22,395 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 50 flow. Second operand 3 states and 274 transitions. [2023-11-19 08:02:22,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 120 flow [2023-11-19 08:02:22,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 118 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:02:22,402 INFO L231 Difference]: Finished difference. Result has 27 places, 20 transitions, 48 flow [2023-11-19 08:02:22,404 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=27, PETRI_TRANSITIONS=20} [2023-11-19 08:02:22,409 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2023-11-19 08:02:22,410 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 48 flow [2023-11-19 08:02:22,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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) [2023-11-19 08:02:22,410 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:02:22,411 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 08:02:22,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:02:22,412 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-19 08:02:22,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:22,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1343896105, now seen corresponding path program 1 times [2023-11-19 08:02:22,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:22,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375867952] [2023-11-19 08:02:22,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:22,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:22,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:22,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:22,532 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 08:02:22,534 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location P1Err1ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-11-19 08:02:22,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-11-19 08:02:22,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-11-19 08:02:22,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-11-19 08:02:22,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-11-19 08:02:22,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2023-11-19 08:02:22,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-11-19 08:02:22,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:02:22,540 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 08:02:22,548 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 08:02:22,549 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:02:22,588 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-19 08:02:22,594 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-19 08:02:22,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:02:22 BasicIcfg [2023-11-19 08:02:22,616 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:02:22,617 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:02:22,618 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:02:22,618 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:02:22,619 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:16" (3/4) ... [2023-11-19 08:02:22,620 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 08:02:22,642 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-19 08:02:22,648 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-19 08:02:22,708 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_846accf4-9d75-4d88-ad32-e02ec832c561/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:02:22,708 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:02:22,709 INFO L158 Benchmark]: Toolchain (without parser) took 7858.61ms. Allocated memory was 142.6MB in the beginning and 207.6MB in the end (delta: 65.0MB). Free memory was 99.1MB in the beginning and 85.2MB in the end (delta: 13.9MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. [2023-11-19 08:02:22,709 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 102.8MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:02:22,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 883.15ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 73.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 08:02:22,710 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.35ms. Allocated memory is still 142.6MB. Free memory was 73.5MB in the beginning and 70.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:02:22,711 INFO L158 Benchmark]: Boogie Preprocessor took 45.74ms. Allocated memory is still 142.6MB. Free memory was 70.5MB in the beginning and 68.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:02:22,711 INFO L158 Benchmark]: RCFGBuilder took 973.72ms. Allocated memory was 142.6MB in the beginning and 207.6MB in the end (delta: 65.0MB). Free memory was 68.5MB in the beginning and 140.9MB in the end (delta: -72.4MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2023-11-19 08:02:22,712 INFO L158 Benchmark]: TraceAbstraction took 5753.38ms. Allocated memory is still 207.6MB. Free memory was 140.9MB in the beginning and 89.4MB in the end (delta: 51.5MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. [2023-11-19 08:02:22,712 INFO L158 Benchmark]: Witness Printer took 91.26ms. Allocated memory is still 207.6MB. Free memory was 89.4MB in the beginning and 85.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:02:22,714 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 102.8MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 883.15ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 73.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.35ms. Allocated memory is still 142.6MB. Free memory was 73.5MB in the beginning and 70.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.74ms. Allocated memory is still 142.6MB. Free memory was 70.5MB in the beginning and 68.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 973.72ms. Allocated memory was 142.6MB in the beginning and 207.6MB in the end (delta: 65.0MB). Free memory was 68.5MB in the beginning and 140.9MB in the end (delta: -72.4MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5753.38ms. Allocated memory is still 207.6MB. Free memory was 140.9MB in the beginning and 89.4MB in the end (delta: 51.5MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. * Witness Printer took 91.26ms. Allocated memory is still 207.6MB. Free memory was 89.4MB in the beginning and 85.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 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: 4.3s, 99 PlacesBefore, 28 PlacesAfterwards, 95 TransitionsBefore, 22 TransitionsAfterwards, 1544 CoEnabledTransitionPairs, 7 FixpointIterations, 35 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 86 TotalNumberOfCompositions, 3672 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1562, independent: 1395, independent conditional: 0, independent unconditional: 1395, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 822, independent: 791, independent conditional: 0, independent unconditional: 791, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1562, independent: 604, independent conditional: 0, independent unconditional: 604, dependent: 136, dependent conditional: 0, dependent unconditional: 136, unknown: 822, unknown conditional: 0, unknown unconditional: 822] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 37, Positive conditional cache size: 0, Positive unconditional cache size: 37, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p1_EBX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L722] 0 _Bool y$flush_delayed; [L723] 0 int y$mem_tmp; [L724] 0 _Bool y$r_buff0_thd0; [L725] 0 _Bool y$r_buff0_thd1; [L726] 0 _Bool y$r_buff0_thd2; [L727] 0 _Bool y$r_buff1_thd0; [L728] 0 _Bool y$r_buff1_thd1; [L729] 0 _Bool y$r_buff1_thd2; [L730] 0 _Bool y$read_delayed; [L731] 0 int *y$read_delayed_var; [L732] 0 int y$w_buff0; [L733] 0 _Bool y$w_buff0_used; [L734] 0 int y$w_buff1; [L735] 0 _Bool y$w_buff1_used; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L834] 0 pthread_t t1665; [L835] FCALL, FORK 0 pthread_create(&t1665, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1665={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L836] 0 pthread_t t1666; [L837] FCALL, FORK 0 pthread_create(&t1666, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1665={5:0}, t1666={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L771] 2 y$w_buff1 = y$w_buff0 [L772] 2 y$w_buff0 = 1 [L773] 2 y$w_buff1_used = y$w_buff0_used [L774] 2 y$w_buff0_used = (_Bool)1 [L775] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L775] RET 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L776] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L777] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L778] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L779] 2 y$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L782] 2 y$w_buff1 = y$w_buff0 [L783] 2 y$w_buff0 = 2 [L784] 2 y$w_buff1_used = y$w_buff0_used [L785] 2 y$w_buff0_used = (_Bool)1 [L786] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND TRUE 2 !expression [L19] 2 reach_error() VAL [\old(expression)=0, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, expression=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=1, y$w_buff1_used=1, y=0] - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 837]: 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: 835]: 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, 118 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 1 mSDtfsCounter, 34 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=50occurred in iteration=0, 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, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-19 08:02:22,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_846accf4-9d75-4d88-ad32-e02ec832c561/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE