./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 0d8fc97f7c37032d6079f8a24b87bc520ff0a9c17c3894514011566166a643e8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 14:29:11,219 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 14:29:11,277 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 14:29:11,283 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 14:29:11,285 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 14:29:11,308 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 14:29:11,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 14:29:11,309 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 14:29:11,309 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 14:29:11,310 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 14:29:11,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 14:29:11,310 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 14:29:11,311 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 14:29:11,311 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 14:29:11,312 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 14:29:11,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 14:29:11,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 14:29:11,316 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 14:29:11,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 14:29:11,316 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 14:29:11,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 14:29:11,317 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 14:29:11,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 14:29:11,317 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 14:29:11,318 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 14:29:11,318 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 14:29:11,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 14:29:11,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 14:29:11,319 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 14:29:11,319 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 14:29:11,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 14:29:11,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 14:29:11,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:29:11,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 14:29:11,320 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 14:29:11,324 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 14:29:11,325 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 14:29:11,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 14:29:11,325 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 14:29:11,325 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 14:29:11,325 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 14:29:11,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 14:29:11,328 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d8fc97f7c37032d6079f8a24b87bc520ff0a9c17c3894514011566166a643e8 [2024-10-11 14:29:11,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 14:29:11,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 14:29:11,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 14:29:11,627 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 14:29:11,628 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 14:29:11,629 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2024-10-11 14:29:13,006 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 14:29:13,209 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 14:29:13,210 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2024-10-11 14:29:13,217 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/0d62e3bed/159d17f39eef47f3ac3dbadd7e2744c1/FLAG64bf504e9 [2024-10-11 14:29:13,594 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/0d62e3bed/159d17f39eef47f3ac3dbadd7e2744c1 [2024-10-11 14:29:13,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 14:29:13,601 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 14:29:13,602 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 14:29:13,603 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 14:29:13,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 14:29:13,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:13" (1/1) ... [2024-10-11 14:29:13,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e9b24ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:13, skipping insertion in model container [2024-10-11 14:29:13,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:13" (1/1) ... [2024-10-11 14:29:13,630 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 14:29:13,848 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c[3096,3109] [2024-10-11 14:29:13,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:29:13,881 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 14:29:13,905 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c[3096,3109] [2024-10-11 14:29:13,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:29:13,931 INFO L204 MainTranslator]: Completed translation [2024-10-11 14:29:13,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:13 WrapperNode [2024-10-11 14:29:13,932 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 14:29:13,933 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 14:29:13,933 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 14:29:13,933 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 14:29:13,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:13" (1/1) ... [2024-10-11 14:29:13,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:13" (1/1) ... [2024-10-11 14:29:13,967 INFO L138 Inliner]: procedures = 24, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2024-10-11 14:29:13,968 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 14:29:13,969 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 14:29:13,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 14:29:13,970 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 14:29:13,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:13" (1/1) ... [2024-10-11 14:29:13,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:13" (1/1) ... [2024-10-11 14:29:13,984 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:13" (1/1) ... [2024-10-11 14:29:14,001 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-10-11 14:29:14,002 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:13" (1/1) ... [2024-10-11 14:29:14,002 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:13" (1/1) ... [2024-10-11 14:29:14,008 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:13" (1/1) ... [2024-10-11 14:29:14,016 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:13" (1/1) ... [2024-10-11 14:29:14,018 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:13" (1/1) ... [2024-10-11 14:29:14,019 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:13" (1/1) ... [2024-10-11 14:29:14,022 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 14:29:14,026 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 14:29:14,026 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 14:29:14,026 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 14:29:14,027 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:13" (1/1) ... [2024-10-11 14:29:14,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:29:14,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:29:14,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 14:29:14,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 14:29:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 14:29:14,096 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-11 14:29:14,096 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-11 14:29:14,096 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-11 14:29:14,097 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-11 14:29:14,097 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-11 14:29:14,097 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-11 14:29:14,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 14:29:14,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 14:29:14,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 14:29:14,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 14:29:14,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 14:29:14,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 14:29:14,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 14:29:14,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 14:29:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 14:29:14,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 14:29:14,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 14:29:14,100 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 14:29:14,204 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 14:29:14,206 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 14:29:14,579 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 14:29:14,579 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 14:29:14,783 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 14:29:14,783 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-11 14:29:14,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:14 BoogieIcfgContainer [2024-10-11 14:29:14,783 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 14:29:14,786 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 14:29:14,786 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 14:29:14,794 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 14:29:14,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:29:13" (1/3) ... [2024-10-11 14:29:14,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8d4e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:14, skipping insertion in model container [2024-10-11 14:29:14,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:13" (2/3) ... [2024-10-11 14:29:14,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8d4e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:14, skipping insertion in model container [2024-10-11 14:29:14,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:14" (3/3) ... [2024-10-11 14:29:14,800 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-min-max-1.wvr.c [2024-10-11 14:29:14,818 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 14:29:14,819 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 14:29:14,819 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 14:29:14,874 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-11 14:29:14,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 37 transitions, 95 flow [2024-10-11 14:29:14,948 INFO L124 PetriNetUnfolderBase]: 3/34 cut-off events. [2024-10-11 14:29:14,948 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-11 14:29:14,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 34 events. 3/34 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2024-10-11 14:29:14,951 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 37 transitions, 95 flow [2024-10-11 14:29:14,957 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 33 transitions, 84 flow [2024-10-11 14:29:14,971 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:29:14,979 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;@38616470, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:29:14,979 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-11 14:29:14,990 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 14:29:14,990 INFO L124 PetriNetUnfolderBase]: 3/32 cut-off events. [2024-10-11 14:29:14,991 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-11 14:29:14,991 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:29:14,992 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:29:14,992 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 14:29:14,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:29:14,997 INFO L85 PathProgramCache]: Analyzing trace with hash -178969562, now seen corresponding path program 1 times [2024-10-11 14:29:15,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:29:15,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208025563] [2024-10-11 14:29:15,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:29:15,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:29:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:29:15,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:29:15,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:29:15,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208025563] [2024-10-11 14:29:15,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208025563] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:29:15,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:29:15,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 14:29:15,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942330280] [2024-10-11 14:29:15,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:29:15,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:29:15,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:29:15,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:29:15,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 14:29:15,562 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-10-11 14:29:15,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2024-10-11 14:29:15,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:29:15,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-10-11 14:29:15,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:29:15,791 INFO L124 PetriNetUnfolderBase]: 483/830 cut-off events. [2024-10-11 14:29:15,792 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-11 14:29:15,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1653 conditions, 830 events. 483/830 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4166 event pairs, 256 based on Foata normal form. 32/808 useless extension candidates. Maximal degree in co-relation 1560. Up to 520 conditions per place. [2024-10-11 14:29:15,804 INFO L140 encePairwiseOnDemand]: 33/37 looper letters, 32 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2024-10-11 14:29:15,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 45 transitions, 184 flow [2024-10-11 14:29:15,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:29:15,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 14:29:15,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2024-10-11 14:29:15,815 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5945945945945946 [2024-10-11 14:29:15,816 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 84 flow. Second operand 4 states and 88 transitions. [2024-10-11 14:29:15,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 45 transitions, 184 flow [2024-10-11 14:29:15,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 45 transitions, 168 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-11 14:29:15,828 INFO L231 Difference]: Finished difference. Result has 38 places, 34 transitions, 86 flow [2024-10-11 14:29:15,830 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=38, PETRI_TRANSITIONS=34} [2024-10-11 14:29:15,834 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2024-10-11 14:29:15,835 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 34 transitions, 86 flow [2024-10-11 14:29:15,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2024-10-11 14:29:15,835 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:29:15,836 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:29:15,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 14:29:15,836 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 14:29:15,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:29:15,838 INFO L85 PathProgramCache]: Analyzing trace with hash 2058521415, now seen corresponding path program 1 times [2024-10-11 14:29:15,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:29:15,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522856293] [2024-10-11 14:29:15,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:29:15,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:29:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:29:16,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:29:16,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:29:16,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522856293] [2024-10-11 14:29:16,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522856293] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:29:16,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:29:16,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 14:29:16,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404614882] [2024-10-11 14:29:16,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:29:16,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:29:16,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:29:16,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:29:16,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 14:29:16,022 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-10-11 14:29:16,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 34 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-10-11 14:29:16,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:29:16,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-10-11 14:29:16,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:29:16,219 INFO L124 PetriNetUnfolderBase]: 540/926 cut-off events. [2024-10-11 14:29:16,219 INFO L125 PetriNetUnfolderBase]: For 86/127 co-relation queries the response was YES. [2024-10-11 14:29:16,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1981 conditions, 926 events. 540/926 cut-off events. For 86/127 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4711 event pairs, 319 based on Foata normal form. 79/975 useless extension candidates. Maximal degree in co-relation 494. Up to 598 conditions per place. [2024-10-11 14:29:16,227 INFO L140 encePairwiseOnDemand]: 33/37 looper letters, 33 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2024-10-11 14:29:16,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 191 flow [2024-10-11 14:29:16,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:29:16,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 14:29:16,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 87 transitions. [2024-10-11 14:29:16,232 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5878378378378378 [2024-10-11 14:29:16,232 INFO L175 Difference]: Start difference. First operand has 38 places, 34 transitions, 86 flow. Second operand 4 states and 87 transitions. [2024-10-11 14:29:16,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 191 flow [2024-10-11 14:29:16,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 46 transitions, 186 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 14:29:16,235 INFO L231 Difference]: Finished difference. Result has 40 places, 35 transitions, 96 flow [2024-10-11 14:29:16,236 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=40, PETRI_TRANSITIONS=35} [2024-10-11 14:29:16,237 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2024-10-11 14:29:16,238 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 35 transitions, 96 flow [2024-10-11 14:29:16,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-10-11 14:29:16,239 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:29:16,239 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:29:16,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 14:29:16,240 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 14:29:16,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:29:16,241 INFO L85 PathProgramCache]: Analyzing trace with hash -478229390, now seen corresponding path program 1 times [2024-10-11 14:29:16,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:29:16,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485857300] [2024-10-11 14:29:16,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:29:16,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:29:16,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:29:16,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 14:29:16,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:29:16,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485857300] [2024-10-11 14:29:16,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485857300] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:29:16,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:29:16,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 14:29:16,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017170184] [2024-10-11 14:29:16,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:29:16,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 14:29:16,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:29:16,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 14:29:16,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 14:29:16,455 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-10-11 14:29:16,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-10-11 14:29:16,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:29:16,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-10-11 14:29:16,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:29:16,578 INFO L124 PetriNetUnfolderBase]: 465/803 cut-off events. [2024-10-11 14:29:16,579 INFO L125 PetriNetUnfolderBase]: For 121/183 co-relation queries the response was YES. [2024-10-11 14:29:16,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1834 conditions, 803 events. 465/803 cut-off events. For 121/183 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3995 event pairs, 388 based on Foata normal form. 62/831 useless extension candidates. Maximal degree in co-relation 533. Up to 712 conditions per place. [2024-10-11 14:29:16,585 INFO L140 encePairwiseOnDemand]: 34/37 looper letters, 23 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2024-10-11 14:29:16,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 36 transitions, 148 flow [2024-10-11 14:29:16,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 14:29:16,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 14:29:16,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2024-10-11 14:29:16,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5945945945945946 [2024-10-11 14:29:16,586 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 96 flow. Second operand 3 states and 66 transitions. [2024-10-11 14:29:16,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 36 transitions, 148 flow [2024-10-11 14:29:16,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 36 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 14:29:16,590 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 104 flow [2024-10-11 14:29:16,592 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2024-10-11 14:29:16,593 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2024-10-11 14:29:16,593 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 104 flow [2024-10-11 14:29:16,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-10-11 14:29:16,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:29:16,593 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:29:16,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 14:29:16,594 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 14:29:16,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:29:16,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1993299354, now seen corresponding path program 1 times [2024-10-11 14:29:16,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:29:16,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524574820] [2024-10-11 14:29:16,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:29:16,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:29:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:29:17,060 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 14:29:17,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:29:17,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524574820] [2024-10-11 14:29:17,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524574820] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:29:17,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653331046] [2024-10-11 14:29:17,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:29:17,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:29:17,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:29:17,066 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:29:17,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 14:29:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:29:17,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-11 14:29:17,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:29:17,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-11 14:29:17,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-11 14:29:17,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:29:17,573 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:29:17,902 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 14:29:17,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653331046] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 14:29:17,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 14:29:17,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 8] total 20 [2024-10-11 14:29:17,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223302033] [2024-10-11 14:29:17,903 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 14:29:17,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 14:29:17,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:29:17,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 14:29:17,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2024-10-11 14:29:17,990 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-10-11 14:29:17,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 104 flow. Second operand has 20 states, 20 states have (on average 14.35) internal successors, (287), 20 states have internal predecessors, (287), 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) [2024-10-11 14:29:17,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:29:17,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-10-11 14:29:17,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:29:18,843 INFO L124 PetriNetUnfolderBase]: 1381/2227 cut-off events. [2024-10-11 14:29:18,844 INFO L125 PetriNetUnfolderBase]: For 455/455 co-relation queries the response was YES. [2024-10-11 14:29:18,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5086 conditions, 2227 events. 1381/2227 cut-off events. For 455/455 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 11372 event pairs, 109 based on Foata normal form. 3/2220 useless extension candidates. Maximal degree in co-relation 5073. Up to 377 conditions per place. [2024-10-11 14:29:18,850 INFO L140 encePairwiseOnDemand]: 26/37 looper letters, 0 selfloop transitions, 0 changer transitions 167/167 dead transitions. [2024-10-11 14:29:18,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 167 transitions, 792 flow [2024-10-11 14:29:18,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-11 14:29:18,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-11 14:29:18,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 359 transitions. [2024-10-11 14:29:18,856 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.539039039039039 [2024-10-11 14:29:18,857 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 104 flow. Second operand 18 states and 359 transitions. [2024-10-11 14:29:18,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 167 transitions, 792 flow [2024-10-11 14:29:18,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 167 transitions, 788 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-11 14:29:18,861 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-10-11 14:29:18,862 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2024-10-11 14:29:18,863 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 15 predicate places. [2024-10-11 14:29:18,863 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-10-11 14:29:18,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.35) internal successors, (287), 20 states have internal predecessors, (287), 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) [2024-10-11 14:29:18,866 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-10-11 14:29:18,867 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-10-11 14:29:18,867 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-11 14:29:18,867 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-11 14:29:18,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 14:29:19,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:29:19,072 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-11 14:29:19,077 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 14:29:19,077 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 14:29:19,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:29:19 BasicIcfg [2024-10-11 14:29:19,083 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 14:29:19,084 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 14:29:19,084 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 14:29:19,084 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 14:29:19,084 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:14" (3/4) ... [2024-10-11 14:29:19,087 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 14:29:19,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-11 14:29:19,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-11 14:29:19,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-10-11 14:29:19,099 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 115 nodes and edges [2024-10-11 14:29:19,099 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-10-11 14:29:19,100 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-10-11 14:29:19,100 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 14:29:19,197 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 14:29:19,197 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 14:29:19,197 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 14:29:19,198 INFO L158 Benchmark]: Toolchain (without parser) took 5596.75ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 125.6MB in the beginning and 129.4MB in the end (delta: -3.7MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2024-10-11 14:29:19,198 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 104.9MB. Free memory was 75.5MB in the beginning and 75.4MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 14:29:19,199 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.69ms. Allocated memory is still 157.3MB. Free memory was 125.1MB in the beginning and 111.4MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-11 14:29:19,199 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.68ms. Allocated memory is still 157.3MB. Free memory was 111.4MB in the beginning and 109.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 14:29:19,199 INFO L158 Benchmark]: Boogie Preprocessor took 53.19ms. Allocated memory is still 157.3MB. Free memory was 109.4MB in the beginning and 107.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 14:29:19,200 INFO L158 Benchmark]: RCFGBuilder took 757.97ms. Allocated memory is still 157.3MB. Free memory was 106.2MB in the beginning and 87.1MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-11 14:29:19,200 INFO L158 Benchmark]: TraceAbstraction took 4296.91ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 86.0MB in the beginning and 135.0MB in the end (delta: -49.0MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. [2024-10-11 14:29:19,200 INFO L158 Benchmark]: Witness Printer took 113.98ms. Allocated memory is still 188.7MB. Free memory was 135.0MB in the beginning and 129.4MB in the end (delta: 5.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 14:29:19,202 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 104.9MB. Free memory was 75.5MB in the beginning and 75.4MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.69ms. Allocated memory is still 157.3MB. Free memory was 125.1MB in the beginning and 111.4MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.68ms. Allocated memory is still 157.3MB. Free memory was 111.4MB in the beginning and 109.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.19ms. Allocated memory is still 157.3MB. Free memory was 109.4MB in the beginning and 107.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 757.97ms. Allocated memory is still 157.3MB. Free memory was 106.2MB in the beginning and 87.1MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4296.91ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 86.0MB in the beginning and 135.0MB in the end (delta: -49.0MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. * Witness Printer took 113.98ms. Allocated memory is still 188.7MB. Free memory was 135.0MB in the beginning and 129.4MB in the end (delta: 5.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 115]: 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 7 procedures, 58 locations, 4 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: 4.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 400 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 384 mSDsluCounter, 204 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 191 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 792 IncrementalHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 13 mSDtfsCounter, 792 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=3, InterpolantAutomatonStates: 29, 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, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 981 SizeOfPredicates, 13 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 5/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 14:29:19,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE