./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/10-synch_03-two_unique.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2acce53-e430-4839-8297-74ccd65783da/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2acce53-e430-4839-8297-74ccd65783da/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2acce53-e430-4839-8297-74ccd65783da/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2acce53-e430-4839-8297-74ccd65783da/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/10-synch_03-two_unique.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2acce53-e430-4839-8297-74ccd65783da/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2acce53-e430-4839-8297-74ccd65783da/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9672e6ae87a72de159ae3bc4275af34a3d8ca73d27f8f7f38f7b3aa006285dad --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:57:45,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:57:45,791 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2acce53-e430-4839-8297-74ccd65783da/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-14 02:57:45,800 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:57:45,801 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:57:45,845 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:57:45,846 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:57:45,847 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:57:45,848 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:57:45,848 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:57:45,848 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:57:45,849 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:57:45,849 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:57:45,849 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:57:45,849 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:57:45,849 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:57:45,849 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:57:45,849 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:57:45,849 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:57:45,851 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:57:45,851 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:57:45,851 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:57:45,852 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 02:57:45,852 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 02:57:45,852 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:57:45,852 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 02:57:45,852 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:57:45,852 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 02:57:45,852 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:57:45,852 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 02:57:45,853 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 02:57:45,853 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-14 02:57:45,853 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:57:45,853 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 02:57:45,853 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:57:45,853 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 02:57:45,853 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 02:57:45,853 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:57:45,853 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:57:45,853 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:57:45,853 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:57:45,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:57:45,854 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:57:45,854 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:57:45,854 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:57:45,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:57:45,854 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:57:45,854 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:57:45,854 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:57:45,854 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_f2acce53-e430-4839-8297-74ccd65783da/bin/utaipan-verify-sOmjnqqW8E 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> 9672e6ae87a72de159ae3bc4275af34a3d8ca73d27f8f7f38f7b3aa006285dad [2024-11-14 02:57:46,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:57:46,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:57:46,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:57:46,282 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:57:46,282 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:57:46,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2acce53-e430-4839-8297-74ccd65783da/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/goblint-regression/10-synch_03-two_unique.i Unable to find full path for "g++" [2024-11-14 02:57:48,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:57:49,224 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:57:49,225 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2acce53-e430-4839-8297-74ccd65783da/sv-benchmarks/c/goblint-regression/10-synch_03-two_unique.i [2024-11-14 02:57:49,253 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2acce53-e430-4839-8297-74ccd65783da/bin/utaipan-verify-sOmjnqqW8E/data/dee54a0f0/a1c82d9accf1492a9590c01c3db2a95b/FLAGb5d0a6795 [2024-11-14 02:57:49,275 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2acce53-e430-4839-8297-74ccd65783da/bin/utaipan-verify-sOmjnqqW8E/data/dee54a0f0/a1c82d9accf1492a9590c01c3db2a95b [2024-11-14 02:57:49,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:57:49,280 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:57:49,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:57:49,282 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:57:49,288 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:57:49,289 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:57:49" (1/1) ... [2024-11-14 02:57:49,290 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@637e7655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:57:49, skipping insertion in model container [2024-11-14 02:57:49,290 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:57:49" (1/1) ... [2024-11-14 02:57:49,349 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:57:50,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:57:50,023 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:57:50,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:57:50,159 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:57:50,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:57:50 WrapperNode [2024-11-14 02:57:50,160 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:57:50,162 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:57:50,162 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:57:50,162 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:57:50,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:57:50" (1/1) ... [2024-11-14 02:57:50,184 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:57:50" (1/1) ... [2024-11-14 02:57:50,206 INFO L138 Inliner]: procedures = 257, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2024-11-14 02:57:50,206 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:57:50,207 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:57:50,207 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:57:50,208 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:57:50,214 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:57:50" (1/1) ... [2024-11-14 02:57:50,214 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:57:50" (1/1) ... [2024-11-14 02:57:50,219 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:57:50" (1/1) ... [2024-11-14 02:57:50,219 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:57:50" (1/1) ... [2024-11-14 02:57:50,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:57:50" (1/1) ... [2024-11-14 02:57:50,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:57:50" (1/1) ... [2024-11-14 02:57:50,230 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:57:50" (1/1) ... [2024-11-14 02:57:50,231 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:57:50" (1/1) ... [2024-11-14 02:57:50,233 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:57:50,234 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:57:50,234 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:57:50,235 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:57:50,236 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:57:50" (1/1) ... [2024-11-14 02:57:50,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:57:50,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2acce53-e430-4839-8297-74ccd65783da/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:57:50,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2acce53-e430-4839-8297-74ccd65783da/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:57:50,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2acce53-e430-4839-8297-74ccd65783da/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:57:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-14 02:57:50,319 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-14 02:57:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-14 02:57:50,319 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-14 02:57:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:57:50,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:57:50,321 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-14 02:57:50,478 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:57:50,480 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:57:50,606 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-14 02:57:50,606 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:57:50,698 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:57:50,698 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 02:57:50,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:57:50 BoogieIcfgContainer [2024-11-14 02:57:50,698 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:57:50,705 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:57:50,705 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:57:50,712 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:57:50,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:57:49" (1/3) ... [2024-11-14 02:57:50,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d4efa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:57:50, skipping insertion in model container [2024-11-14 02:57:50,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:57:50" (2/3) ... [2024-11-14 02:57:50,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d4efa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:57:50, skipping insertion in model container [2024-11-14 02:57:50,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:57:50" (3/3) ... [2024-11-14 02:57:50,716 INFO L112 eAbstractionObserver]: Analyzing ICFG 10-synch_03-two_unique.i [2024-11-14 02:57:50,733 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:57:50,736 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 10-synch_03-two_unique.i that has 3 procedures, 12 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-14 02:57:50,736 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-14 02:57:50,790 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-14 02:57:50,831 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 11 transitions, 30 flow [2024-11-14 02:57:50,851 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 18 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 17 states have internal predecessors, (28), 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) [2024-11-14 02:57:50,888 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:57:50,906 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@4ee4a7b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:57:50,906 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-14 02:57:50,912 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 17 states have internal predecessors, (28), 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) [2024-11-14 02:57:50,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 02:57:50,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:57:50,919 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 02:57:50,920 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-14 02:57:50,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:57:50,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1328273646, now seen corresponding path program 1 times [2024-11-14 02:57:50,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:57:50,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341522244] [2024-11-14 02:57:50,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:57:50,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:57:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:57:51,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:57:51,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:57:51,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341522244] [2024-11-14 02:57:51,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341522244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:57:51,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:57:51,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 02:57:51,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276733415] [2024-11-14 02:57:51,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:57:51,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:57:51,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:57:51,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:57:51,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:57:51,234 INFO L87 Difference]: Start difference. First operand has 18 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 17 states have internal predecessors, (28), 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) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-11-14 02:57:51,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:57:51,266 INFO L93 Difference]: Finished difference Result 18 states and 28 transitions. [2024-11-14 02:57:51,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:57:51,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) Word has length 6 [2024-11-14 02:57:51,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:57:51,277 INFO L225 Difference]: With dead ends: 18 [2024-11-14 02:57:51,277 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 02:57:51,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:57:51,285 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:57:51,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:57:51,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 02:57:51,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 02:57:51,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-14 02:57:51,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 02:57:51,314 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2024-11-14 02:57:51,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:57:51,314 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 02:57:51,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-11-14 02:57:51,315 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 02:57:51,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 02:57:51,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 3 remaining) [2024-11-14 02:57:51,319 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-11-14 02:57:51,321 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-14 02:57:51,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 02:57:51,325 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 02:57:51,328 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-14 02:57:51,328 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 02:57:51,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 02:57:51 BasicIcfg [2024-11-14 02:57:51,337 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 02:57:51,338 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 02:57:51,338 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 02:57:51,338 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 02:57:51,339 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:57:50" (3/4) ... [2024-11-14 02:57:51,342 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 02:57:51,346 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2024-11-14 02:57:51,346 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2024-11-14 02:57:51,350 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2024-11-14 02:57:51,351 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-14 02:57:51,351 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-14 02:57:51,351 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 02:57:51,422 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2acce53-e430-4839-8297-74ccd65783da/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 02:57:51,423 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2acce53-e430-4839-8297-74ccd65783da/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 02:57:51,423 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 02:57:51,424 INFO L158 Benchmark]: Toolchain (without parser) took 2144.07ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 75.7MB in the end (delta: 15.1MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2024-11-14 02:57:51,424 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:57:51,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 879.14ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 64.5MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 02:57:51,425 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.01ms. Allocated memory is still 117.4MB. Free memory was 64.5MB in the beginning and 62.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:57:51,426 INFO L158 Benchmark]: Boogie Preprocessor took 26.08ms. Allocated memory is still 117.4MB. Free memory was 62.8MB in the beginning and 62.1MB in the end (delta: 670.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:57:51,427 INFO L158 Benchmark]: RCFGBuilder took 464.22ms. Allocated memory is still 117.4MB. Free memory was 62.1MB in the beginning and 49.5MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 02:57:51,428 INFO L158 Benchmark]: TraceAbstraction took 632.15ms. Allocated memory is still 117.4MB. Free memory was 48.7MB in the beginning and 79.7MB in the end (delta: -31.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:57:51,428 INFO L158 Benchmark]: Witness Printer took 84.89ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 75.7MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:57:51,429 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 879.14ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 64.5MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.01ms. Allocated memory is still 117.4MB. Free memory was 64.5MB in the beginning and 62.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.08ms. Allocated memory is still 117.4MB. Free memory was 62.8MB in the beginning and 62.1MB in the end (delta: 670.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 464.22ms. Allocated memory is still 117.4MB. Free memory was 62.1MB in the beginning and 49.5MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 632.15ms. Allocated memory is still 117.4MB. Free memory was 48.7MB in the beginning and 79.7MB in the end (delta: -31.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 84.89ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 75.7MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 927]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 18 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 7 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=18occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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! [2024-11-14 02:57:51,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2acce53-e430-4839-8297-74ccd65783da/bin/utaipan-verify-sOmjnqqW8E/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