./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_true.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_true.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0cfc714deb84bcca910b305399e87db62fbeafddb1ab6ae11b5af742d8815ce --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 10:52:02,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 10:52:02,650 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-29 10:52:02,656 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 10:52:02,657 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 10:52:02,696 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 10:52:02,696 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 10:52:02,697 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 10:52:02,697 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-29 10:52:02,697 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-29 10:52:02,697 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 10:52:02,697 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 10:52:02,698 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 10:52:02,698 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 10:52:02,698 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 10:52:02,698 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 10:52:02,698 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 10:52:02,698 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 10:52:02,698 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 10:52:02,698 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 10:52:02,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 10:52:02,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 10:52:02,698 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 10:52:02,698 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 10:52:02,699 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 10:52:02,699 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 10:52:02,699 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 10:52:02,699 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 10:52:02,699 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 10:52:02,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 10:52:02,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 10:52:02,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 10:52:02,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:52:02,699 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 10:52:02,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 10:52:02,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 10:52:02,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 10:52:02,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:52:02,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 10:52:02,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 10:52:02,700 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 10:52:02,700 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 10:52:02,700 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 10:52:02,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 10:52:02,700 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 10:52:02,700 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 10:52:02,700 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 10:52:02,700 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0cfc714deb84bcca910b305399e87db62fbeafddb1ab6ae11b5af742d8815ce [2025-04-29 10:52:02,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 10:52:02,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 10:52:02,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 10:52:02,951 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 10:52:02,951 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 10:52:02,952 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_true.c [2025-04-29 10:52:04,225 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb640e4ff/7b371f6fac1845cc9339f65133480d26/FLAG515d5c137 [2025-04-29 10:52:04,413 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 10:52:04,413 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_true.c [2025-04-29 10:52:04,415 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:52:04,415 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:52:04,419 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb640e4ff/7b371f6fac1845cc9339f65133480d26/FLAG515d5c137 [2025-04-29 10:52:05,276 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb640e4ff/7b371f6fac1845cc9339f65133480d26 [2025-04-29 10:52:05,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 10:52:05,280 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 10:52:05,281 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 10:52:05,281 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 10:52:05,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 10:52:05,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 10:52:05" (1/1) ... [2025-04-29 10:52:05,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28127a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:52:05, skipping insertion in model container [2025-04-29 10:52:05,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 10:52:05" (1/1) ... [2025-04-29 10:52:05,298 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 10:52:05,447 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_true.c[399,412] [2025-04-29 10:52:05,471 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 10:52:05,478 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 10:52:05,501 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_true.c[399,412] [2025-04-29 10:52:05,504 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 10:52:05,517 INFO L204 MainTranslator]: Completed translation [2025-04-29 10:52:05,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:52:05 WrapperNode [2025-04-29 10:52:05,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 10:52:05,518 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 10:52:05,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 10:52:05,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 10:52:05,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:52:05" (1/1) ... [2025-04-29 10:52:05,531 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:52:05" (1/1) ... [2025-04-29 10:52:05,546 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2025-04-29 10:52:05,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 10:52:05,547 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 10:52:05,547 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 10:52:05,547 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 10:52:05,552 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:52:05" (1/1) ... [2025-04-29 10:52:05,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:52:05" (1/1) ... [2025-04-29 10:52:05,554 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:52:05" (1/1) ... [2025-04-29 10:52:05,561 INFO L175 MemorySlicer]: Split 2 memory accesses to 2 slices as follows [1, 1]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 1]. The 0 writes are split as follows [0, 0]. [2025-04-29 10:52:05,561 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:52:05" (1/1) ... [2025-04-29 10:52:05,561 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:52:05" (1/1) ... [2025-04-29 10:52:05,569 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:52:05" (1/1) ... [2025-04-29 10:52:05,570 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:52:05" (1/1) ... [2025-04-29 10:52:05,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:52:05" (1/1) ... [2025-04-29 10:52:05,572 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:52:05" (1/1) ... [2025-04-29 10:52:05,572 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:52:05" (1/1) ... [2025-04-29 10:52:05,574 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 10:52:05,574 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 10:52:05,574 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 10:52:05,575 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 10:52:05,575 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:52:05" (1/1) ... [2025-04-29 10:52:05,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:52:05,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 10:52:05,598 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-29 10:52:05,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-29 10:52:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 10:52:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-29 10:52:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-29 10:52:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-29 10:52:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-29 10:52:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 10:52:05,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 10:52:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-29 10:52:05,618 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-29 10:52:05,619 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-29 10:52:05,678 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 10:52:05,679 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 10:52:05,796 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 10:52:05,796 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 10:52:05,845 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 10:52:05,845 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 10:52:05,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:52:05 BoogieIcfgContainer [2025-04-29 10:52:05,846 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 10:52:05,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 10:52:05,847 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 10:52:05,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 10:52:05,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 10:52:05" (1/3) ... [2025-04-29 10:52:05,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a39052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 10:52:05, skipping insertion in model container [2025-04-29 10:52:05,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:52:05" (2/3) ... [2025-04-29 10:52:05,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a39052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 10:52:05, skipping insertion in model container [2025-04-29 10:52:05,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:52:05" (3/3) ... [2025-04-29 10:52:05,852 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_37-traces-ex-4_true.c [2025-04-29 10:52:05,861 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 10:52:05,862 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_37-traces-ex-4_true.c that has 2 procedures, 30 locations, 29 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-29 10:52:05,863 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 10:52:05,901 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-29 10:52:05,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 30 transitions, 64 flow [2025-04-29 10:52:05,961 INFO L116 PetriNetUnfolderBase]: 1/29 cut-off events. [2025-04-29 10:52:05,963 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 10:52:05,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 29 events. 1/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2025-04-29 10:52:05,964 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 30 transitions, 64 flow [2025-04-29 10:52:05,967 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 22 transitions, 47 flow [2025-04-29 10:52:05,972 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 10:52:05,984 INFO L340 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;@7735d7ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 10:52:05,987 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-04-29 10:52:05,995 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 10:52:05,996 INFO L116 PetriNetUnfolderBase]: 0/14 cut-off events. [2025-04-29 10:52:05,996 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 10:52:05,996 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 10:52:05,997 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 10:52:05,997 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-29 10:52:06,001 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 10:52:06,001 INFO L85 PathProgramCache]: Analyzing trace with hash 902676870, now seen corresponding path program 1 times [2025-04-29 10:52:06,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 10:52:06,006 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632711330] [2025-04-29 10:52:06,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:52:06,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 10:52:06,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-29 10:52:06,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-29 10:52:06,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:52:06,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 10:52:06,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 10:52:06,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 10:52:06,204 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632711330] [2025-04-29 10:52:06,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632711330] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 10:52:06,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 10:52:06,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-29 10:52:06,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726744140] [2025-04-29 10:52:06,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 10:52:06,210 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-29 10:52:06,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 10:52:06,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-29 10:52:06,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-29 10:52:06,240 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2025-04-29 10:52:06,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 47 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2025-04-29 10:52:06,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 10:52:06,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2025-04-29 10:52:06,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 10:52:06,357 INFO L116 PetriNetUnfolderBase]: 41/125 cut-off events. [2025-04-29 10:52:06,358 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 10:52:06,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 125 events. 41/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 423 event pairs, 22 based on Foata normal form. 10/133 useless extension candidates. Maximal degree in co-relation 227. Up to 59 conditions per place. [2025-04-29 10:52:06,360 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 17 selfloop transitions, 3 changer transitions 10/36 dead transitions. [2025-04-29 10:52:06,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 36 transitions, 135 flow [2025-04-29 10:52:06,363 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-29 10:52:06,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-29 10:52:06,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 72 transitions. [2025-04-29 10:52:06,371 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.48 [2025-04-29 10:52:06,372 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 47 flow. Second operand 5 states and 72 transitions. [2025-04-29 10:52:06,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 36 transitions, 135 flow [2025-04-29 10:52:06,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 36 transitions, 134 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 10:52:06,377 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 61 flow [2025-04-29 10:52:06,379 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=61, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2025-04-29 10:52:06,383 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 6 predicate places. [2025-04-29 10:52:06,383 INFO L485 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 61 flow [2025-04-29 10:52:06,383 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2025-04-29 10:52:06,383 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 10:52:06,383 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 10:52:06,384 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 10:52:06,384 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-29 10:52:06,385 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 10:52:06,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1754698429, now seen corresponding path program 1 times [2025-04-29 10:52:06,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 10:52:06,386 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25728906] [2025-04-29 10:52:06,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:52:06,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 10:52:06,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-29 10:52:06,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-29 10:52:06,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:52:06,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 10:52:06,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 10:52:06,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 10:52:06,603 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25728906] [2025-04-29 10:52:06,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25728906] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 10:52:06,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 10:52:06,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-29 10:52:06,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014457582] [2025-04-29 10:52:06,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 10:52:06,604 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-29 10:52:06,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 10:52:06,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-29 10:52:06,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-04-29 10:52:06,609 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2025-04-29 10:52:06,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 61 flow. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2025-04-29 10:52:06,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 10:52:06,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2025-04-29 10:52:06,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 10:52:06,689 INFO L116 PetriNetUnfolderBase]: 11/48 cut-off events. [2025-04-29 10:52:06,690 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-29 10:52:06,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 48 events. 11/48 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 2 based on Foata normal form. 9/56 useless extension candidates. Maximal degree in co-relation 95. Up to 20 conditions per place. [2025-04-29 10:52:06,691 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2025-04-29 10:52:06,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 22 transitions, 89 flow [2025-04-29 10:52:06,692 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-29 10:52:06,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-29 10:52:06,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2025-04-29 10:52:06,693 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.4 [2025-04-29 10:52:06,693 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 61 flow. Second operand 5 states and 60 transitions. [2025-04-29 10:52:06,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 22 transitions, 89 flow [2025-04-29 10:52:06,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 22 transitions, 80 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-29 10:52:06,693 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2025-04-29 10:52:06,693 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2025-04-29 10:52:06,695 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2025-04-29 10:52:06,695 INFO L485 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2025-04-29 10:52:06,695 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2025-04-29 10:52:06,697 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-04-29 10:52:06,697 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2025-04-29 10:52:06,697 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 10:52:06,699 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-04-29 10:52:06,701 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 10:52:06,701 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 10:52:06,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 10:52:06 BasicIcfg [2025-04-29 10:52:06,705 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 10:52:06,705 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 10:52:06,708 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 10:52:06,709 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 10:52:06,709 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:52:05" (3/4) ... [2025-04-29 10:52:06,711 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-29 10:52:06,715 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-29 10:52:06,717 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-04-29 10:52:06,717 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-04-29 10:52:06,717 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-29 10:52:06,765 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 10:52:06,765 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 10:52:06,765 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 10:52:06,767 INFO L158 Benchmark]: Toolchain (without parser) took 1486.07ms. Allocated memory is still 142.6MB. Free memory was 112.0MB in the beginning and 82.3MB in the end (delta: 29.8MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2025-04-29 10:52:06,767 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:52:06,768 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.81ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 98.1MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 10:52:06,768 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.17ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 95.8MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 10:52:06,768 INFO L158 Benchmark]: Boogie Preprocessor took 26.78ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 94.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:52:06,768 INFO L158 Benchmark]: RCFGBuilder took 271.37ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 77.9MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 10:52:06,768 INFO L158 Benchmark]: TraceAbstraction took 857.65ms. Allocated memory is still 142.6MB. Free memory was 77.9MB in the beginning and 87.4MB in the end (delta: -9.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:52:06,768 INFO L158 Benchmark]: Witness Printer took 60.16ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 82.3MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 10:52:06,769 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.81ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 98.1MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.17ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 95.8MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.78ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 94.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 271.37ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 77.9MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 857.65ms. Allocated memory is still 142.6MB. Free memory was 77.9MB in the beginning and 87.4MB in the end (delta: -9.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 60.16ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 82.3MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 11]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 45 locations, 44 edges, 2 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: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 2 mSDtfsCounter, 94 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=1, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 84 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-29 10:52:06,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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