./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe001_power.oepc.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_8ae1e93f-6720-49e5-a4e7-9d305a978da4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae1e93f-6720-49e5-a4e7-9d305a978da4/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_8ae1e93f-6720-49e5-a4e7-9d305a978da4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae1e93f-6720-49e5-a4e7-9d305a978da4/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe001_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae1e93f-6720-49e5-a4e7-9d305a978da4/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_8ae1e93f-6720-49e5-a4e7-9d305a978da4/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 67d3e2c6779f32015be5c9fe966e6a739e1c762dcde7f287ad383839eb490e84 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:47:42,852 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:47:42,955 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae1e93f-6720-49e5-a4e7-9d305a978da4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:47:42,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:47:42,962 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:47:42,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:47:42,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:47:42,997 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:47:42,997 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:47:42,998 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:47:42,998 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:47:42,999 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:47:42,999 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:47:43,000 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:47:43,001 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:47:43,002 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:47:43,002 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:47:43,002 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:47:43,002 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:47:43,002 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:47:43,002 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:47:43,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:47:43,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:47:43,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:47:43,003 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:47:43,003 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:47:43,003 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:47:43,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:47:43,004 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:47:43,004 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:47:43,004 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:47:43,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:47:43,004 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:47:43,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:47:43,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:47:43,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:47:43,005 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:47:43,005 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:47:43,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:47:43,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:47:43,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:47:43,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:47:43,005 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:47:43,005 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:47:43,005 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:47:43,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:47:43,006 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:47:43,006 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:47:43,006 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:47:43,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:47:43,006 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_8ae1e93f-6720-49e5-a4e7-9d305a978da4/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 -> 67d3e2c6779f32015be5c9fe966e6a739e1c762dcde7f287ad383839eb490e84 [2024-11-28 03:47:43,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:47:43,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:47:43,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:47:43,395 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:47:43,396 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:47:43,397 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae1e93f-6720-49e5-a4e7-9d305a978da4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/safe001_power.oepc.i [2024-11-28 03:47:47,002 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae1e93f-6720-49e5-a4e7-9d305a978da4/bin/uautomizer-verify-aQ6SnzHsRB/data/38247c30a/63af6bb97ef9415cafeb743cfb9153ed/FLAG3997af097 [2024-11-28 03:47:47,478 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:47:47,479 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae1e93f-6720-49e5-a4e7-9d305a978da4/sv-benchmarks/c/pthread-wmm/safe001_power.oepc.i [2024-11-28 03:47:47,506 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae1e93f-6720-49e5-a4e7-9d305a978da4/bin/uautomizer-verify-aQ6SnzHsRB/data/38247c30a/63af6bb97ef9415cafeb743cfb9153ed/FLAG3997af097 [2024-11-28 03:47:47,588 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae1e93f-6720-49e5-a4e7-9d305a978da4/bin/uautomizer-verify-aQ6SnzHsRB/data/38247c30a/63af6bb97ef9415cafeb743cfb9153ed [2024-11-28 03:47:47,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:47:47,593 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:47:47,595 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:47:47,595 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:47:47,607 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:47:47,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:47:47" (1/1) ... [2024-11-28 03:47:47,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dfbad24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:47:47, skipping insertion in model container [2024-11-28 03:47:47,610 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:47:47" (1/1) ... [2024-11-28 03:47:47,679 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:47:48,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:47:48,233 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:47:48,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:47:48,382 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:47:48,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:47:48 WrapperNode [2024-11-28 03:47:48,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:47:48,384 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:47:48,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:47:48,385 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:47:48,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:47:48" (1/1) ... [2024-11-28 03:47:48,427 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:47:48" (1/1) ... [2024-11-28 03:47:48,474 INFO L138 Inliner]: procedures = 175, calls = 73, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 165 [2024-11-28 03:47:48,475 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:47:48,476 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:47:48,476 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:47:48,476 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:47:48,496 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:47:48" (1/1) ... [2024-11-28 03:47:48,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:47:48" (1/1) ... [2024-11-28 03:47:48,502 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:47:48" (1/1) ... [2024-11-28 03:47:48,528 INFO L175 MemorySlicer]: Split 32 memory accesses to 2 slices as follows [2, 30]. 94 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 11 writes are split as follows [0, 11]. [2024-11-28 03:47:48,528 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:47:48" (1/1) ... [2024-11-28 03:47:48,529 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:47:48" (1/1) ... [2024-11-28 03:47:48,543 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:47:48" (1/1) ... [2024-11-28 03:47:48,544 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:47:48" (1/1) ... [2024-11-28 03:47:48,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:47:48" (1/1) ... [2024-11-28 03:47:48,555 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:47:48" (1/1) ... [2024-11-28 03:47:48,562 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:47:48" (1/1) ... [2024-11-28 03:47:48,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:47:48,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:47:48,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:47:48,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:47:48,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:47:48" (1/1) ... [2024-11-28 03:47:48,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:47:48,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae1e93f-6720-49e5-a4e7-9d305a978da4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:48,631 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae1e93f-6720-49e5-a4e7-9d305a978da4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:47:48,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae1e93f-6720-49e5-a4e7-9d305a978da4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:47:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:47:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:47:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:47:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:47:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 03:47:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:47:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 03:47:48,674 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 03:47:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 03:47:48,675 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 03:47:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-28 03:47:48,675 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-28 03:47:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:47:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:47:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 03:47:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:47:48,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:47:48,681 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:47:48,938 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:47:48,941 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:47:50,007 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:47:50,007 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:47:50,853 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:47:50,853 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:47:50,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:47:50 BoogieIcfgContainer [2024-11-28 03:47:50,855 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:47:50,859 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:47:50,859 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:47:50,867 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:47:50,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:47:47" (1/3) ... [2024-11-28 03:47:50,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b50b25b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:47:50, skipping insertion in model container [2024-11-28 03:47:50,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:47:48" (2/3) ... [2024-11-28 03:47:50,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b50b25b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:47:50, skipping insertion in model container [2024-11-28 03:47:50,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:47:50" (3/3) ... [2024-11-28 03:47:50,870 INFO L128 eAbstractionObserver]: Analyzing ICFG safe001_power.oepc.i [2024-11-28 03:47:50,892 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:47:50,895 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe001_power.oepc.i that has 4 procedures, 40 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2024-11-28 03:47:50,896 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:47:51,051 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:47:51,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 39 transitions, 90 flow [2024-11-28 03:47:51,178 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2024-11-28 03:47:51,181 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:47:51,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 36 events. 0/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 85 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-28 03:47:51,186 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 39 transitions, 90 flow [2024-11-28 03:47:51,192 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 36 transitions, 81 flow [2024-11-28 03:47:51,212 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:47:51,234 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;@2abb18dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:47:51,235 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-28 03:47:51,252 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:47:51,252 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:47:51,252 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:47:51,252 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:47:51,253 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:47:51,253 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-28 03:47:51,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:51,260 INFO L85 PathProgramCache]: Analyzing trace with hash -351541573, now seen corresponding path program 1 times [2024-11-28 03:47:51,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:51,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499262039] [2024-11-28 03:47:51,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:51,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:51,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:47:51,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:51,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499262039] [2024-11-28 03:47:51,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499262039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:51,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:47:51,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 03:47:51,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584770601] [2024-11-28 03:47:51,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:51,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:47:51,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:51,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:47:51,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:47:51,977 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2024-11-28 03:47:51,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2024-11-28 03:47:51,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:47:51,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2024-11-28 03:47:51,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:47:54,180 INFO L124 PetriNetUnfolderBase]: 3297/4821 cut-off events. [2024-11-28 03:47:54,181 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-28 03:47:54,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9694 conditions, 4821 events. 3297/4821 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 27520 event pairs, 1109 based on Foata normal form. 0/3934 useless extension candidates. Maximal degree in co-relation 9683. Up to 4373 conditions per place. [2024-11-28 03:47:54,244 INFO L140 encePairwiseOnDemand]: 29/39 looper letters, 43 selfloop transitions, 4 changer transitions 0/54 dead transitions. [2024-11-28 03:47:54,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 54 transitions, 217 flow [2024-11-28 03:47:54,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:47:54,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:47:54,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2024-11-28 03:47:54,269 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7094017094017094 [2024-11-28 03:47:54,271 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 81 flow. Second operand 3 states and 83 transitions. [2024-11-28 03:47:54,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 54 transitions, 217 flow [2024-11-28 03:47:54,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 54 transitions, 212 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:47:54,286 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 114 flow [2024-11-28 03:47:54,291 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2024-11-28 03:47:54,297 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 0 predicate places. [2024-11-28 03:47:54,297 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 114 flow [2024-11-28 03:47:54,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2024-11-28 03:47:54,298 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:47:54,298 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:47:54,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:47:54,299 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-28 03:47:54,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:54,301 INFO L85 PathProgramCache]: Analyzing trace with hash 405148368, now seen corresponding path program 1 times [2024-11-28 03:47:54,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:54,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530084181] [2024-11-28 03:47:54,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:54,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:54,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:47:54,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:54,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530084181] [2024-11-28 03:47:54,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530084181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:54,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:47:54,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:47:54,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098446120] [2024-11-28 03:47:54,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:54,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:47:54,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:54,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:47:54,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:47:54,717 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2024-11-28 03:47:54,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-11-28 03:47:54,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:47:54,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2024-11-28 03:47:54,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:47:56,077 INFO L124 PetriNetUnfolderBase]: 2397/3517 cut-off events. [2024-11-28 03:47:56,077 INFO L125 PetriNetUnfolderBase]: For 288/288 co-relation queries the response was YES. [2024-11-28 03:47:56,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8150 conditions, 3517 events. 2397/3517 cut-off events. For 288/288 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 19240 event pairs, 727 based on Foata normal form. 0/3142 useless extension candidates. Maximal degree in co-relation 8139. Up to 3068 conditions per place. [2024-11-28 03:47:56,108 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 40 selfloop transitions, 4 changer transitions 0/51 dead transitions. [2024-11-28 03:47:56,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 51 transitions, 224 flow [2024-11-28 03:47:56,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:47:56,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:47:56,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 87 transitions. [2024-11-28 03:47:56,112 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5576923076923077 [2024-11-28 03:47:56,112 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 114 flow. Second operand 4 states and 87 transitions. [2024-11-28 03:47:56,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 51 transitions, 224 flow [2024-11-28 03:47:56,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 51 transitions, 220 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:47:56,115 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 106 flow [2024-11-28 03:47:56,118 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2024-11-28 03:47:56,120 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2024-11-28 03:47:56,120 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 106 flow [2024-11-28 03:47:56,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-11-28 03:47:56,120 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:47:56,120 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:47:56,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:47:56,121 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-28 03:47:56,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:56,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1058983919, now seen corresponding path program 1 times [2024-11-28 03:47:56,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:56,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040553462] [2024-11-28 03:47:56,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:56,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:56,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:47:56,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:56,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040553462] [2024-11-28 03:47:56,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040553462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:56,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:47:56,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:47:56,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815104492] [2024-11-28 03:47:56,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:56,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:47:56,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:56,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:47:56,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:47:56,474 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2024-11-28 03:47:56,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-11-28 03:47:56,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:47:56,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2024-11-28 03:47:56,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:47:57,800 INFO L124 PetriNetUnfolderBase]: 1797/2657 cut-off events. [2024-11-28 03:47:57,801 INFO L125 PetriNetUnfolderBase]: For 584/584 co-relation queries the response was YES. [2024-11-28 03:47:57,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6055 conditions, 2657 events. 1797/2657 cut-off events. For 584/584 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 13720 event pairs, 329 based on Foata normal form. 0/2578 useless extension candidates. Maximal degree in co-relation 6043. Up to 1169 conditions per place. [2024-11-28 03:47:57,819 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 53 selfloop transitions, 7 changer transitions 3/70 dead transitions. [2024-11-28 03:47:57,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 70 transitions, 312 flow [2024-11-28 03:47:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:47:57,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:47:57,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2024-11-28 03:47:57,821 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6794871794871795 [2024-11-28 03:47:57,821 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 106 flow. Second operand 4 states and 106 transitions. [2024-11-28 03:47:57,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 70 transitions, 312 flow [2024-11-28 03:47:57,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 70 transitions, 307 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:47:57,824 INFO L231 Difference]: Finished difference. Result has 47 places, 36 transitions, 127 flow [2024-11-28 03:47:57,825 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=47, PETRI_TRANSITIONS=36} [2024-11-28 03:47:57,826 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 1 predicate places. [2024-11-28 03:47:57,826 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 36 transitions, 127 flow [2024-11-28 03:47:57,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-11-28 03:47:57,826 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:47:57,826 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:47:57,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:47:57,827 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-28 03:47:57,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:57,828 INFO L85 PathProgramCache]: Analyzing trace with hash -930428864, now seen corresponding path program 1 times [2024-11-28 03:47:57,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:57,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386942893] [2024-11-28 03:47:57,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:57,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:58,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:47:58,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:58,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386942893] [2024-11-28 03:47:58,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386942893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:58,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:47:58,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:47:58,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079736465] [2024-11-28 03:47:58,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:58,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:47:58,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:58,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:47:58,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:47:58,205 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2024-11-28 03:47:58,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 36 transitions, 127 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2024-11-28 03:47:58,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:47:58,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2024-11-28 03:47:58,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:47:59,162 INFO L124 PetriNetUnfolderBase]: 1529/2269 cut-off events. [2024-11-28 03:47:59,163 INFO L125 PetriNetUnfolderBase]: For 1350/1350 co-relation queries the response was YES. [2024-11-28 03:47:59,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5752 conditions, 2269 events. 1529/2269 cut-off events. For 1350/1350 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 11840 event pairs, 269 based on Foata normal form. 72/2334 useless extension candidates. Maximal degree in co-relation 5739. Up to 1040 conditions per place. [2024-11-28 03:47:59,174 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2024-11-28 03:47:59,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 64 transitions, 291 flow [2024-11-28 03:47:59,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:47:59,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:47:59,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2024-11-28 03:47:59,178 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2024-11-28 03:47:59,178 INFO L175 Difference]: Start difference. First operand has 47 places, 36 transitions, 127 flow. Second operand 5 states and 110 transitions. [2024-11-28 03:47:59,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 64 transitions, 291 flow [2024-11-28 03:47:59,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 64 transitions, 267 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-28 03:47:59,185 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2024-11-28 03:47:59,185 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2024-11-28 03:47:59,187 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -2 predicate places. [2024-11-28 03:47:59,188 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2024-11-28 03:47:59,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2024-11-28 03:47:59,192 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2024-11-28 03:47:59,194 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-11-28 03:47:59,194 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-11-28 03:47:59,194 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-11-28 03:47:59,194 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-11-28 03:47:59,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-11-28 03:47:59,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-28 03:47:59,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2024-11-28 03:47:59,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2024-11-28 03:47:59,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-11-28 03:47:59,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-11-28 03:47:59,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-11-28 03:47:59,195 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-11-28 03:47:59,196 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-11-28 03:47:59,196 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2024-11-28 03:47:59,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:47:59,196 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:47:59,206 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 03:47:59,207 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:47:59,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:47:59 BasicIcfg [2024-11-28 03:47:59,216 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:47:59,219 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:47:59,219 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:47:59,219 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:47:59,221 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:47:50" (3/4) ... [2024-11-28 03:47:59,223 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:47:59,226 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-28 03:47:59,226 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-28 03:47:59,227 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-28 03:47:59,235 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 72 nodes and edges [2024-11-28 03:47:59,235 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-28 03:47:59,235 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 03:47:59,236 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:47:59,345 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae1e93f-6720-49e5-a4e7-9d305a978da4/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:47:59,346 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae1e93f-6720-49e5-a4e7-9d305a978da4/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:47:59,346 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:47:59,347 INFO L158 Benchmark]: Toolchain (without parser) took 11753.93ms. Allocated memory was 117.4MB in the beginning and 637.5MB in the end (delta: 520.1MB). Free memory was 90.7MB in the beginning and 426.6MB in the end (delta: -335.9MB). Peak memory consumption was 185.9MB. Max. memory is 16.1GB. [2024-11-28 03:47:59,348 INFO L158 Benchmark]: CDTParser took 1.93ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 73.2MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:47:59,348 INFO L158 Benchmark]: CACSL2BoogieTranslator took 789.05ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 64.3MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 03:47:59,348 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.70ms. Allocated memory is still 117.4MB. Free memory was 64.3MB in the beginning and 61.8MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:47:59,349 INFO L158 Benchmark]: Boogie Preprocessor took 96.52ms. Allocated memory is still 117.4MB. Free memory was 61.8MB in the beginning and 56.9MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:47:59,349 INFO L158 Benchmark]: RCFGBuilder took 2282.27ms. Allocated memory is still 117.4MB. Free memory was 56.6MB in the beginning and 34.9MB in the end (delta: 21.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-28 03:47:59,350 INFO L158 Benchmark]: TraceAbstraction took 8356.94ms. Allocated memory was 117.4MB in the beginning and 637.5MB in the end (delta: 520.1MB). Free memory was 34.2MB in the beginning and 430.8MB in the end (delta: -396.7MB). Peak memory consumption was 347.0MB. Max. memory is 16.1GB. [2024-11-28 03:47:59,350 INFO L158 Benchmark]: Witness Printer took 127.17ms. Allocated memory is still 637.5MB. Free memory was 430.8MB in the beginning and 426.6MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:47:59,353 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.93ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 73.2MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 789.05ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 64.3MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.70ms. Allocated memory is still 117.4MB. Free memory was 64.3MB in the beginning and 61.8MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 96.52ms. Allocated memory is still 117.4MB. Free memory was 61.8MB in the beginning and 56.9MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 2282.27ms. Allocated memory is still 117.4MB. Free memory was 56.6MB in the beginning and 34.9MB in the end (delta: 21.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8356.94ms. Allocated memory was 117.4MB in the beginning and 637.5MB in the end (delta: 520.1MB). Free memory was 34.2MB in the beginning and 430.8MB in the end (delta: -396.7MB). Peak memory consumption was 347.0MB. Max. memory is 16.1GB. * Witness Printer took 127.17ms. Allocated memory is still 637.5MB. Free memory was 430.8MB in the beginning and 426.6MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 836]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 836]: 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 7 procedures, 70 locations, 15 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: 8.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 161 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 153 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 2 mSDtfsCounter, 292 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 03:47:59,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae1e93f-6720-49e5-a4e7-9d305a978da4/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