./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_b9ab291d-fc2a-4179-bf36-3580ddb87050/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fafa05b72e6925548935fa790281a49d4bca5cad8ef15917dd3e0ea4e3ccb38f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 11:23:16,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:23:16,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:23:16,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:23:16,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:23:16,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:23:16,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:23:16,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:23:16,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:23:16,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:23:16,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:23:16,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:23:16,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:23:16,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:23:16,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:23:16,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:23:16,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:23:16,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:23:16,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:23:16,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:23:16,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:23:16,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:23:16,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:23:16,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:23:16,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:23:16,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:23:16,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:23:16,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:23:16,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:23:16,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:23:16,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:23:16,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:23:16,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:23:16,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:23:16,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:23:16,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:23:16,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:23:16,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:23:16,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:23:16,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:23:16,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:23:16,852 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 11:23:16,873 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:23:16,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:23:16,879 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:23:16,879 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:23:16,879 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:23:16,880 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:23:16,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:23:16,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:23:16,881 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:23:16,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:23:16,881 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:23:16,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:23:16,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:23:16,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:23:16,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:23:16,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:23:16,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:23:16,882 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:23:16,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:23:16,883 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:23:16,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:23:16,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:23:16,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:23:16,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:23:16,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:23:16,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:23:16,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:23:16,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:23:16,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:23:16,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:23:16,885 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:23:16,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:23:16,885 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:23:16,885 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:23:16,885 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:23:16,886 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fafa05b72e6925548935fa790281a49d4bca5cad8ef15917dd3e0ea4e3ccb38f [2022-12-13 11:23:17,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:23:17,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:23:17,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:23:17,091 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:23:17,091 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:23:17,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c [2022-12-13 11:23:19,746 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:23:19,889 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:23:19,889 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c [2022-12-13 11:23:19,894 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/bin/uautomizer-uyxdKDjOR8/data/c43fc69d6/11090850b30142078de7e8d02d076375/FLAG3e578fc73 [2022-12-13 11:23:19,905 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/bin/uautomizer-uyxdKDjOR8/data/c43fc69d6/11090850b30142078de7e8d02d076375 [2022-12-13 11:23:19,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:23:19,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:23:19,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:23:19,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:23:19,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:23:19,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:23:19" (1/1) ... [2022-12-13 11:23:19,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d2da036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:19, skipping insertion in model container [2022-12-13 11:23:19,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:23:19" (1/1) ... [2022-12-13 11:23:19,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:23:19,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:23:20,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:23:20,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:23:20,057 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:23:20,057 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:23:20,063 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c[2252,2265] [2022-12-13 11:23:20,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:23:20,072 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:23:20,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:23:20,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:23:20,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:23:20,083 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:23:20,086 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c[2252,2265] [2022-12-13 11:23:20,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:23:20,096 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:23:20,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:20 WrapperNode [2022-12-13 11:23:20,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:23:20,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:23:20,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:23:20,098 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:23:20,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:20" (1/1) ... [2022-12-13 11:23:20,112 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:20" (1/1) ... [2022-12-13 11:23:20,127 INFO L138 Inliner]: procedures = 20, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2022-12-13 11:23:20,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:23:20,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:23:20,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:23:20,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:23:20,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:20" (1/1) ... [2022-12-13 11:23:20,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:20" (1/1) ... [2022-12-13 11:23:20,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:20" (1/1) ... [2022-12-13 11:23:20,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:20" (1/1) ... [2022-12-13 11:23:20,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:20" (1/1) ... [2022-12-13 11:23:20,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:20" (1/1) ... [2022-12-13 11:23:20,142 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:20" (1/1) ... [2022-12-13 11:23:20,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:20" (1/1) ... [2022-12-13 11:23:20,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:23:20,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:23:20,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:23:20,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:23:20,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:20" (1/1) ... [2022-12-13 11:23:20,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:23:20,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:23:20,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:23:20,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:23:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:23:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 11:23:20,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 11:23:20,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 11:23:20,199 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 11:23:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:23:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:23:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:23:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 11:23:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 11:23:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:23:20,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:23:20,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 11:23:20,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:23:20,201 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 11:23:20,269 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:23:20,270 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:23:20,398 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:23:20,449 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:23:20,450 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 11:23:20,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:23:20 BoogieIcfgContainer [2022-12-13 11:23:20,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:23:20,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:23:20,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:23:20,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:23:20,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:23:19" (1/3) ... [2022-12-13 11:23:20,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46fd32e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:23:20, skipping insertion in model container [2022-12-13 11:23:20,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:20" (2/3) ... [2022-12-13 11:23:20,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46fd32e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:23:20, skipping insertion in model container [2022-12-13 11:23:20,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:23:20" (3/3) ... [2022-12-13 11:23:20,460 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled-atomic.wvr.c [2022-12-13 11:23:20,470 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 11:23:20,481 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:23:20,481 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:23:20,481 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:23:20,532 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 11:23:20,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 96 transitions, 208 flow [2022-12-13 11:23:20,612 INFO L130 PetriNetUnfolder]: 7/94 cut-off events. [2022-12-13 11:23:20,612 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 11:23:20,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 94 events. 7/94 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-12-13 11:23:20,618 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 96 transitions, 208 flow [2022-12-13 11:23:20,621 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 85 transitions, 182 flow [2022-12-13 11:23:20,624 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:23:20,632 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 85 transitions, 182 flow [2022-12-13 11:23:20,634 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 85 transitions, 182 flow [2022-12-13 11:23:20,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 85 transitions, 182 flow [2022-12-13 11:23:20,658 INFO L130 PetriNetUnfolder]: 7/85 cut-off events. [2022-12-13 11:23:20,658 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 11:23:20,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 85 events. 7/85 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-12-13 11:23:20,660 INFO L119 LiptonReduction]: Number of co-enabled transitions 252 [2022-12-13 11:23:22,653 INFO L134 LiptonReduction]: Checked pairs total: 314 [2022-12-13 11:23:22,654 INFO L136 LiptonReduction]: Total number of compositions: 86 [2022-12-13 11:23:22,665 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:23:22,669 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@33aa1ae0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:23:22,669 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 11:23:22,672 INFO L130 PetriNetUnfolder]: 2/12 cut-off events. [2022-12-13 11:23:22,672 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 11:23:22,672 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:23:22,673 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:23:22,673 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 11:23:22,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:23:22,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1952143581, now seen corresponding path program 1 times [2022-12-13 11:23:22,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:23:22,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200681307] [2022-12-13 11:23:22,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:23:22,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:23:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:22,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:23:22,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:23:22,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200681307] [2022-12-13 11:23:22,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200681307] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:23:22,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:23:22,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:23:22,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952221370] [2022-12-13 11:23:22,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:23:22,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:23:22,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:23:22,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:23:22,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:23:22,938 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 182 [2022-12-13 11:23:22,940 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 13 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:23:22,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:23:22,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 182 [2022-12-13 11:23:22,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:23:22,965 INFO L130 PetriNetUnfolder]: 21/39 cut-off events. [2022-12-13 11:23:22,965 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 11:23:22,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 39 events. 21/39 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 9 based on Foata normal form. 1/28 useless extension candidates. Maximal degree in co-relation 60. Up to 39 conditions per place. [2022-12-13 11:23:22,966 INFO L137 encePairwiseOnDemand]: 180/182 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions. [2022-12-13 11:23:22,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 12 transitions, 60 flow [2022-12-13 11:23:22,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:23:22,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:23:22,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2022-12-13 11:23:22,980 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47435897435897434 [2022-12-13 11:23:22,980 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2022-12-13 11:23:22,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2022-12-13 11:23:22,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:23:22,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2022-12-13 11:23:22,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:23:22,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:23:22,990 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:23:22,991 INFO L175 Difference]: Start difference. First operand has 18 places, 13 transitions, 38 flow. Second operand 3 states and 259 transitions. [2022-12-13 11:23:22,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 12 transitions, 60 flow [2022-12-13 11:23:22,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 12 transitions, 52 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 11:23:22,993 INFO L231 Difference]: Finished difference. Result has 15 places, 0 transitions, 0 flow [2022-12-13 11:23:22,995 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=15, PETRI_TRANSITIONS=0} [2022-12-13 11:23:22,998 INFO L288 CegarLoopForPetriNet]: 18 programPoint places, -3 predicate places. [2022-12-13 11:23:22,998 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 0 transitions, 0 flow [2022-12-13 11:23:22,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:23:23,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 11:23:23,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 11:23:23,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-13 11:23:23,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:23:23,001 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 11:23:23,003 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 11:23:23,003 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:23:23,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:23:23 BasicIcfg [2022-12-13 11:23:23,006 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:23:23,006 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:23:23,007 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:23:23,007 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:23:23,007 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:23:20" (3/4) ... [2022-12-13 11:23:23,009 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 11:23:23,013 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 11:23:23,013 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 11:23:23,016 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-12-13 11:23:23,016 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 11:23:23,016 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 11:23:23,016 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 11:23:23,046 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 11:23:23,046 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:23:23,047 INFO L158 Benchmark]: Toolchain (without parser) took 3139.28ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 104.5MB in the beginning and 66.2MB in the end (delta: 38.3MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2022-12-13 11:23:23,048 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 138.4MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:23:23,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.96ms. Allocated memory is still 138.4MB. Free memory was 104.1MB in the beginning and 92.9MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 11:23:23,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.84ms. Allocated memory is still 138.4MB. Free memory was 92.9MB in the beginning and 91.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:23:23,049 INFO L158 Benchmark]: Boogie Preprocessor took 16.87ms. Allocated memory is still 138.4MB. Free memory was 91.2MB in the beginning and 89.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:23:23,049 INFO L158 Benchmark]: RCFGBuilder took 307.43ms. Allocated memory is still 138.4MB. Free memory was 89.9MB in the beginning and 73.6MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 11:23:23,050 INFO L158 Benchmark]: TraceAbstraction took 2551.92ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 73.2MB in the beginning and 69.3MB in the end (delta: 3.8MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2022-12-13 11:23:23,050 INFO L158 Benchmark]: Witness Printer took 40.09ms. Allocated memory is still 167.8MB. Free memory was 69.3MB in the beginning and 66.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:23:23,052 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 138.4MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.96ms. Allocated memory is still 138.4MB. Free memory was 104.1MB in the beginning and 92.9MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.84ms. Allocated memory is still 138.4MB. Free memory was 92.9MB in the beginning and 91.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.87ms. Allocated memory is still 138.4MB. Free memory was 91.2MB in the beginning and 89.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 307.43ms. Allocated memory is still 138.4MB. Free memory was 89.9MB in the beginning and 73.6MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2551.92ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 73.2MB in the beginning and 69.3MB in the end (delta: 3.8MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. * Witness Printer took 40.09ms. Allocated memory is still 167.8MB. Free memory was 69.3MB in the beginning and 66.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 85 PlacesBefore, 18 PlacesAfterwards, 85 TransitionsBefore, 13 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 4 ConcurrentYvCompositions, 5 ChoiceCompositions, 86 TotalNumberOfCompositions, 314 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 314, independent: 314, independent conditional: 0, independent unconditional: 314, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 133, independent: 133, independent conditional: 0, independent unconditional: 133, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 314, independent: 181, independent conditional: 0, independent unconditional: 181, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 133, unknown conditional: 0, unknown unconditional: 133] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 84]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 102 locations, 3 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: 2.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 1 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 11:23:23,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ab291d-fc2a-4179-bf36-3580ddb87050/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE