./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe022_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe022_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cfc87f4ca115dcc389a4b05cbc106fd8bac1a9e17a58d50108d65580024dc2f5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:05:29,167 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:05:29,273 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 20:05:29,278 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:05:29,279 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:05:29,303 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:05:29,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:05:29,304 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:05:29,304 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:05:29,304 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:05:29,304 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:05:29,304 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:05:29,305 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:05:29,305 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:05:29,305 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:05:29,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:05:29,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:05:29,305 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:05:29,305 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:05:29,305 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:05:29,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:05:29,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:05:29,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:05:29,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:05:29,306 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:05:29,306 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:05:29,306 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:05:29,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:05:29,307 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:05:29,307 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:05:29,307 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:05:29,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:05:29,307 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:05:29,307 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:05:29,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:05:29,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:05:29,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:05:29,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:05:29,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:05:29,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:05:29,308 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:05:29,308 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:05:29,308 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:05:29,308 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:05:29,309 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:05:29,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:05:29,309 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:05:29,309 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:05:29,309 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:05:29,309 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:05:29,309 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/bin/uautomizer-verify-aQ6SnzHsRB 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 ! overflow) ) 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 -> cfc87f4ca115dcc389a4b05cbc106fd8bac1a9e17a58d50108d65580024dc2f5 [2024-11-27 20:05:29,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:05:29,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:05:29,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:05:29,611 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:05:29,612 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:05:29,613 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/safe022_tso.i [2024-11-27 20:05:32,567 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/bin/uautomizer-verify-aQ6SnzHsRB/data/2b8cef889/abe82f9dd363491a83cd04e24efe7481/FLAGae06229ba [2024-11-27 20:05:32,870 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:05:32,875 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/sv-benchmarks/c/pthread-wmm/safe022_tso.i [2024-11-27 20:05:32,887 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/bin/uautomizer-verify-aQ6SnzHsRB/data/2b8cef889/abe82f9dd363491a83cd04e24efe7481/FLAGae06229ba [2024-11-27 20:05:33,126 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/bin/uautomizer-verify-aQ6SnzHsRB/data/2b8cef889/abe82f9dd363491a83cd04e24efe7481 [2024-11-27 20:05:33,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:05:33,130 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:05:33,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:05:33,131 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:05:33,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:05:33,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:05:33" (1/1) ... [2024-11-27 20:05:33,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21efa345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:33, skipping insertion in model container [2024-11-27 20:05:33,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:05:33" (1/1) ... [2024-11-27 20:05:33,171 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:05:33,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:05:33,643 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:05:33,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:05:33,788 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:05:33,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:33 WrapperNode [2024-11-27 20:05:33,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:05:33,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:05:33,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:05:33,792 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:05:33,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:33" (1/1) ... [2024-11-27 20:05:33,824 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:33" (1/1) ... [2024-11-27 20:05:33,857 INFO L138 Inliner]: procedures = 174, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 52 [2024-11-27 20:05:33,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:05:33,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:05:33,860 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:05:33,860 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:05:33,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:33" (1/1) ... [2024-11-27 20:05:33,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:33" (1/1) ... [2024-11-27 20:05:33,876 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:33" (1/1) ... [2024-11-27 20:05:33,901 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 20:05:33,905 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:33" (1/1) ... [2024-11-27 20:05:33,905 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:33" (1/1) ... [2024-11-27 20:05:33,910 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:33" (1/1) ... [2024-11-27 20:05:33,914 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:33" (1/1) ... [2024-11-27 20:05:33,916 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:33" (1/1) ... [2024-11-27 20:05:33,921 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:33" (1/1) ... [2024-11-27 20:05:33,925 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:33" (1/1) ... [2024-11-27 20:05:33,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:05:33,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:05:33,928 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:05:33,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:05:33,929 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:33" (1/1) ... [2024-11-27 20:05:33,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:05:33,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:05:33,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:05:33,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:05:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 20:05:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:05:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-27 20:05:34,010 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-27 20:05:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-27 20:05:34,011 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-27 20:05:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:05:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 20:05:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:05:34,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:05:34,014 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 20:05:34,175 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:05:34,177 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:05:34,355 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 20:05:34,355 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:05:34,483 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:05:34,483 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 20:05:34,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:05:34 BoogieIcfgContainer [2024-11-27 20:05:34,484 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:05:34,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:05:34,487 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:05:34,493 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:05:34,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:05:33" (1/3) ... [2024-11-27 20:05:34,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0479ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:05:34, skipping insertion in model container [2024-11-27 20:05:34,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:33" (2/3) ... [2024-11-27 20:05:34,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0479ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:05:34, skipping insertion in model container [2024-11-27 20:05:34,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:05:34" (3/3) ... [2024-11-27 20:05:34,496 INFO L128 eAbstractionObserver]: Analyzing ICFG safe022_tso.i [2024-11-27 20:05:34,513 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:05:34,515 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe022_tso.i that has 3 procedures, 29 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-27 20:05:34,515 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 20:05:34,598 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 20:05:34,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 28 transitions, 64 flow [2024-11-27 20:05:34,708 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-27 20:05:34,714 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:05:34,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 26 events. 0/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-27 20:05:34,717 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 28 transitions, 64 flow [2024-11-27 20:05:34,726 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 58 flow [2024-11-27 20:05:34,744 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:05:34,767 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=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;@9625fba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:05:34,767 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-27 20:05:34,787 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:05:34,787 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2024-11-27 20:05:34,788 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:05:34,788 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:34,789 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:34,789 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-27 20:05:34,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:34,796 INFO L85 PathProgramCache]: Analyzing trace with hash 864593635, now seen corresponding path program 1 times [2024-11-27 20:05:34,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:34,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579272426] [2024-11-27 20:05:34,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:34,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:35,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:35,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:35,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579272426] [2024-11-27 20:05:35,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579272426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:35,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:35,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 20:05:35,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953130069] [2024-11-27 20:05:35,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:35,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:35,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:35,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:35,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:35,218 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 28 [2024-11-27 20:05:35,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2024-11-27 20:05:35,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:35,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 28 [2024-11-27 20:05:35,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:35,383 INFO L124 PetriNetUnfolderBase]: 84/170 cut-off events. [2024-11-27 20:05:35,384 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-27 20:05:35,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 170 events. 84/170 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 699 event pairs, 24 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 331. Up to 153 conditions per place. [2024-11-27 20:05:35,390 INFO L140 encePairwiseOnDemand]: 21/28 looper letters, 17 selfloop transitions, 3 changer transitions 2/33 dead transitions. [2024-11-27 20:05:35,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 119 flow [2024-11-27 20:05:35,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:35,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:05:35,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2024-11-27 20:05:35,410 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7738095238095238 [2024-11-27 20:05:35,413 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 58 flow. Second operand 3 states and 65 transitions. [2024-11-27 20:05:35,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 119 flow [2024-11-27 20:05:35,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 33 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:05:35,426 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 73 flow [2024-11-27 20:05:35,432 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2024-11-27 20:05:35,438 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2024-11-27 20:05:35,439 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 73 flow [2024-11-27 20:05:35,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2024-11-27 20:05:35,440 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:35,440 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:35,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:05:35,441 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-27 20:05:35,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:35,443 INFO L85 PathProgramCache]: Analyzing trace with hash 835423041, now seen corresponding path program 1 times [2024-11-27 20:05:35,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:35,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443419201] [2024-11-27 20:05:35,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:35,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:35,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:35,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:35,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443419201] [2024-11-27 20:05:35,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443419201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:35,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:35,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:35,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159439366] [2024-11-27 20:05:35,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:35,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:05:35,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:35,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:05:35,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:05:35,672 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 28 [2024-11-27 20:05:35,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 73 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-27 20:05:35,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:35,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 28 [2024-11-27 20:05:35,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:35,774 INFO L124 PetriNetUnfolderBase]: 36/90 cut-off events. [2024-11-27 20:05:35,774 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-27 20:05:35,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 90 events. 36/90 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 313 event pairs, 8 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 207. Up to 72 conditions per place. [2024-11-27 20:05:35,780 INFO L140 encePairwiseOnDemand]: 23/28 looper letters, 15 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2024-11-27 20:05:35,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 29 transitions, 113 flow [2024-11-27 20:05:35,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:05:35,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 20:05:35,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2024-11-27 20:05:35,784 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-11-27 20:05:35,784 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 73 flow. Second operand 4 states and 72 transitions. [2024-11-27 20:05:35,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 29 transitions, 113 flow [2024-11-27 20:05:35,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 29 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:05:35,787 INFO L231 Difference]: Finished difference. Result has 34 places, 24 transitions, 68 flow [2024-11-27 20:05:35,787 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=68, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2024-11-27 20:05:35,788 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2024-11-27 20:05:35,788 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 68 flow [2024-11-27 20:05:35,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-27 20:05:35,789 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:35,789 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:35,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:05:35,789 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-27 20:05:35,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:35,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1372769158, now seen corresponding path program 1 times [2024-11-27 20:05:35,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:35,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053253598] [2024-11-27 20:05:35,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:35,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:35,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:35,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:35,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053253598] [2024-11-27 20:05:35,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053253598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:35,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:35,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:35,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965371280] [2024-11-27 20:05:35,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:35,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:05:35,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:35,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:05:35,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:05:35,992 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 28 [2024-11-27 20:05:35,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-27 20:05:35,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:35,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 28 [2024-11-27 20:05:35,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:36,074 INFO L124 PetriNetUnfolderBase]: 16/54 cut-off events. [2024-11-27 20:05:36,074 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-11-27 20:05:36,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 54 events. 16/54 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 150 event pairs, 0 based on Foata normal form. 16/65 useless extension candidates. Maximal degree in co-relation 119. Up to 36 conditions per place. [2024-11-27 20:05:36,075 INFO L140 encePairwiseOnDemand]: 23/28 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2024-11-27 20:05:36,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 27 transitions, 104 flow [2024-11-27 20:05:36,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:05:36,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 20:05:36,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2024-11-27 20:05:36,077 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-27 20:05:36,077 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 68 flow. Second operand 4 states and 70 transitions. [2024-11-27 20:05:36,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 27 transitions, 104 flow [2024-11-27 20:05:36,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 27 transitions, 97 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-27 20:05:36,078 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2024-11-27 20:05:36,079 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2024-11-27 20:05:36,079 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2024-11-27 20:05:36,080 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2024-11-27 20:05:36,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-27 20:05:36,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-11-27 20:05:36,087 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-27 20:05:36,089 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-27 20:05:36,090 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-27 20:05:36,090 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2024-11-27 20:05:36,090 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2024-11-27 20:05:36,090 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-27 20:05:36,091 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-27 20:05:36,091 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-27 20:05:36,091 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-27 20:05:36,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:05:36,091 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-27 20:05:36,101 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 20:05:36,101 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:05:36,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:05:36 BasicIcfg [2024-11-27 20:05:36,111 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:05:36,113 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:05:36,114 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:05:36,114 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:05:36,115 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:05:34" (3/4) ... [2024-11-27 20:05:36,118 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:05:36,122 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-27 20:05:36,122 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-27 20:05:36,129 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2024-11-27 20:05:36,130 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-27 20:05:36,130 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 20:05:36,130 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:05:36,229 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:05:36,229 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:05:36,229 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:05:36,231 INFO L158 Benchmark]: Toolchain (without parser) took 3100.56ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 42.5MB in the end (delta: 48.7MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2024-11-27 20:05:36,233 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 73.9MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:05:36,234 INFO L158 Benchmark]: CACSL2BoogieTranslator took 660.06ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 71.2MB in the end (delta: 19.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 20:05:36,234 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.60ms. Allocated memory is still 117.4MB. Free memory was 71.2MB in the beginning and 69.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:05:36,234 INFO L158 Benchmark]: Boogie Preprocessor took 68.44ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 68.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:05:36,235 INFO L158 Benchmark]: RCFGBuilder took 555.55ms. Allocated memory is still 117.4MB. Free memory was 68.0MB in the beginning and 49.2MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:05:36,236 INFO L158 Benchmark]: TraceAbstraction took 1624.38ms. Allocated memory is still 117.4MB. Free memory was 48.8MB in the beginning and 46.5MB in the end (delta: 2.2MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2024-11-27 20:05:36,237 INFO L158 Benchmark]: Witness Printer took 116.14ms. Allocated memory is still 117.4MB. Free memory was 46.5MB in the beginning and 42.5MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:05:36,239 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 73.9MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 660.06ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 71.2MB in the end (delta: 19.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.60ms. Allocated memory is still 117.4MB. Free memory was 71.2MB in the beginning and 69.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 68.44ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 68.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 555.55ms. Allocated memory is still 117.4MB. Free memory was 68.0MB in the beginning and 49.2MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1624.38ms. Allocated memory is still 117.4MB. Free memory was 48.8MB in the beginning and 46.5MB in the end (delta: 2.2MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Witness Printer took 116.14ms. Allocated memory is still 117.4MB. Free memory was 46.5MB in the beginning and 42.5MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 730]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 730]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 745]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 745]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 49 locations, 10 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: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 94 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.5s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-27 20:05:36,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b33a747-bb2c-4b17-ab55-0f96f7bc3029/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE