./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c18dd13658bb5739ed2db8c4c80ae330682b7c3cebd2ad85657518c27ca325b9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:37:45,005 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:37:45,077 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:37:45,085 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:37:45,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:37:45,126 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:37:45,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:37:45,128 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:37:45,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:37:45,130 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:37:45,131 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:37:45,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:37:45,132 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:37:45,134 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:37:45,134 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:37:45,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:37:45,135 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:37:45,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:37:45,135 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:37:45,136 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:37:45,136 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:37:45,140 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:37:45,140 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:37:45,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:37:45,140 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:37:45,141 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:37:45,141 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:37:45,141 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:37:45,141 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:37:45,142 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:37:45,149 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:37:45,149 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:37:45,150 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:37:45,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:37:45,150 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:37:45,150 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:37:45,151 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:37:45,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:37:45,151 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:37:45,152 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:37:45,152 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:37:45,152 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:37:45,153 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c18dd13658bb5739ed2db8c4c80ae330682b7c3cebd2ad85657518c27ca325b9 [2024-11-19 09:37:45,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:37:45,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:37:45,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:37:45,446 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:37:45,446 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:37:45,447 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2024-11-19 09:37:46,868 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:37:47,145 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:37:47,146 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2024-11-19 09:37:47,161 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e6e1e358/4991f3c79a584a15b3f3556a0c89f959/FLAG25ebf9ca9 [2024-11-19 09:37:47,177 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e6e1e358/4991f3c79a584a15b3f3556a0c89f959 [2024-11-19 09:37:47,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:37:47,182 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:37:47,185 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:37:47,186 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:37:47,191 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:37:47,191 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:37:47" (1/1) ... [2024-11-19 09:37:47,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dac94fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:47, skipping insertion in model container [2024-11-19 09:37:47,192 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:37:47" (1/1) ... [2024-11-19 09:37:47,235 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:37:47,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:37:47,770 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:37:47,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:37:47,896 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:37:47,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:47 WrapperNode [2024-11-19 09:37:47,897 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:37:47,898 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:37:47,899 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:37:47,899 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:37:47,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:47" (1/1) ... [2024-11-19 09:37:47,927 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:47" (1/1) ... [2024-11-19 09:37:47,968 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 127 [2024-11-19 09:37:47,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:37:47,969 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:37:47,969 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:37:47,969 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:37:47,980 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:47" (1/1) ... [2024-11-19 09:37:47,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:47" (1/1) ... [2024-11-19 09:37:47,988 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:47" (1/1) ... [2024-11-19 09:37:48,014 INFO L175 MemorySlicer]: Split 64 memory accesses to 1 slices as follows [64]. 100 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [60]. The 2 writes are split as follows [2]. [2024-11-19 09:37:48,015 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:47" (1/1) ... [2024-11-19 09:37:48,015 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:47" (1/1) ... [2024-11-19 09:37:48,024 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:47" (1/1) ... [2024-11-19 09:37:48,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:47" (1/1) ... [2024-11-19 09:37:48,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:47" (1/1) ... [2024-11-19 09:37:48,036 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:47" (1/1) ... [2024-11-19 09:37:48,042 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:37:48,043 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:37:48,043 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:37:48,043 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:37:48,044 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:47" (1/1) ... [2024-11-19 09:37:48,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:37:48,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:37:48,084 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) [2024-11-19 09:37:48,088 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 [2024-11-19 09:37:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 09:37:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 09:37:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 09:37:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 09:37:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:37:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 09:37:48,136 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 09:37:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:37:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:37:48,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:37:48,138 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 09:37:48,293 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:37:48,295 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:37:48,610 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:37:48,610 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:37:48,963 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:37:48,964 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 09:37:48,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:37:48 BoogieIcfgContainer [2024-11-19 09:37:48,964 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:37:48,967 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:37:48,968 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:37:48,971 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:37:48,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:37:47" (1/3) ... [2024-11-19 09:37:48,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65786f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:37:48, skipping insertion in model container [2024-11-19 09:37:48,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:47" (2/3) ... [2024-11-19 09:37:48,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65786f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:37:48, skipping insertion in model container [2024-11-19 09:37:48,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:37:48" (3/3) ... [2024-11-19 09:37:48,975 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_07-tricky_address2.i [2024-11-19 09:37:48,992 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:37:48,992 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-11-19 09:37:48,992 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:37:49,034 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 09:37:49,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 29 transitions, 62 flow [2024-11-19 09:37:49,099 INFO L124 PetriNetUnfolderBase]: 1/28 cut-off events. [2024-11-19 09:37:49,100 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:37:49,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 28 events. 1/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 52 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 3. Up to 2 conditions per place. [2024-11-19 09:37:49,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 29 transitions, 62 flow [2024-11-19 09:37:49,107 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 28 transitions, 59 flow [2024-11-19 09:37:49,131 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:37:49,141 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=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@21c92d53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:37:49,141 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-19 09:37:49,152 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:37:49,152 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2024-11-19 09:37:49,153 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:37:49,153 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:37:49,159 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:37:49,160 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-19 09:37:49,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:37:49,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1076103807, now seen corresponding path program 1 times [2024-11-19 09:37:49,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:37:49,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299611806] [2024-11-19 09:37:49,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:37:49,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:37:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:37:49,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:37:49,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:37:49,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299611806] [2024-11-19 09:37:49,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299611806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:37:49,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:37:49,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:37:49,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397890370] [2024-11-19 09:37:49,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:37:49,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:37:49,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:37:49,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:37:49,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:37:49,560 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2024-11-19 09:37:49,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 28 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:37:49,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:37:49,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2024-11-19 09:37:49,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:37:49,660 INFO L124 PetriNetUnfolderBase]: 43/138 cut-off events. [2024-11-19 09:37:49,661 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:37:49,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 138 events. 43/138 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 533 event pairs, 42 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 230. Up to 102 conditions per place. [2024-11-19 09:37:49,666 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 16 selfloop transitions, 2 changer transitions 0/29 dead transitions. [2024-11-19 09:37:49,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 97 flow [2024-11-19 09:37:49,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:37:49,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:37:49,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2024-11-19 09:37:49,677 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.632183908045977 [2024-11-19 09:37:49,679 INFO L175 Difference]: Start difference. First operand has 31 places, 28 transitions, 59 flow. Second operand 3 states and 55 transitions. [2024-11-19 09:37:49,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 97 flow [2024-11-19 09:37:49,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 29 transitions, 96 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:37:49,684 INFO L231 Difference]: Finished difference. Result has 33 places, 29 transitions, 70 flow [2024-11-19 09:37:49,686 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=33, PETRI_TRANSITIONS=29} [2024-11-19 09:37:49,690 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 2 predicate places. [2024-11-19 09:37:49,692 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 29 transitions, 70 flow [2024-11-19 09:37:49,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:37:49,692 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:37:49,692 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:37:49,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:37:49,693 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-19 09:37:49,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:37:49,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1698609433, now seen corresponding path program 1 times [2024-11-19 09:37:49,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:37:49,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943861685] [2024-11-19 09:37:49,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:37:49,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:37:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:37:49,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:37:49,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:37:49,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943861685] [2024-11-19 09:37:49,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943861685] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:37:49,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608959098] [2024-11-19 09:37:49,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:37:49,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:37:49,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:37:49,810 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:37:49,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 09:37:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:37:49,924 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 09:37:49,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:37:49,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:37:49,967 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:37:49,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:37:49,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608959098] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:37:49,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:37:49,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-19 09:37:49,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914704185] [2024-11-19 09:37:49,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:37:49,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 09:37:49,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:37:49,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 09:37:49,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 09:37:49,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2024-11-19 09:37:49,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 29 transitions, 70 flow. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:37:49,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:37:49,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2024-11-19 09:37:49,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:37:50,094 INFO L124 PetriNetUnfolderBase]: 43/141 cut-off events. [2024-11-19 09:37:50,095 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:37:50,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 141 events. 43/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 533 event pairs, 42 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 249. Up to 102 conditions per place. [2024-11-19 09:37:50,097 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 16 selfloop transitions, 5 changer transitions 0/32 dead transitions. [2024-11-19 09:37:50,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 32 transitions, 124 flow [2024-11-19 09:37:50,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 09:37:50,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 09:37:50,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 96 transitions. [2024-11-19 09:37:50,101 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5517241379310345 [2024-11-19 09:37:50,101 INFO L175 Difference]: Start difference. First operand has 33 places, 29 transitions, 70 flow. Second operand 6 states and 96 transitions. [2024-11-19 09:37:50,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 32 transitions, 124 flow [2024-11-19 09:37:50,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 32 transitions, 120 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-19 09:37:50,105 INFO L231 Difference]: Finished difference. Result has 40 places, 32 transitions, 102 flow [2024-11-19 09:37:50,105 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=102, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2024-11-19 09:37:50,108 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2024-11-19 09:37:50,108 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 102 flow [2024-11-19 09:37:50,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:37:50,108 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:37:50,109 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:37:50,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 09:37:50,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:37:50,311 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-19 09:37:50,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:37:50,316 INFO L85 PathProgramCache]: Analyzing trace with hash 145219839, now seen corresponding path program 2 times [2024-11-19 09:37:50,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:37:50,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033176987] [2024-11-19 09:37:50,317 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:37:50,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:37:50,342 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 09:37:50,347 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:37:50,427 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-19 09:37:50,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:37:50,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033176987] [2024-11-19 09:37:50,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033176987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:37:50,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:37:50,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:37:50,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249209939] [2024-11-19 09:37:50,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:37:50,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:37:50,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:37:50,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:37:50,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:37:50,452 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-19 09:37:50,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:37:50,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:37:50,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-19 09:37:50,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:37:50,515 INFO L124 PetriNetUnfolderBase]: 43/129 cut-off events. [2024-11-19 09:37:50,515 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 09:37:50,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 129 events. 43/129 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 432 event pairs, 42 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 228. Up to 105 conditions per place. [2024-11-19 09:37:50,517 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 20 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2024-11-19 09:37:50,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 28 transitions, 136 flow [2024-11-19 09:37:50,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:37:50,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:37:50,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 45 transitions. [2024-11-19 09:37:50,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5172413793103449 [2024-11-19 09:37:50,519 INFO L175 Difference]: Start difference. First operand has 40 places, 32 transitions, 102 flow. Second operand 3 states and 45 transitions. [2024-11-19 09:37:50,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 28 transitions, 136 flow [2024-11-19 09:37:50,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 28 transitions, 122 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-19 09:37:50,521 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 82 flow [2024-11-19 09:37:50,521 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2024-11-19 09:37:50,522 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 6 predicate places. [2024-11-19 09:37:50,522 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 82 flow [2024-11-19 09:37:50,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:37:50,522 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:37:50,523 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:37:50,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 09:37:50,523 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-19 09:37:50,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:37:50,524 INFO L85 PathProgramCache]: Analyzing trace with hash 145219840, now seen corresponding path program 1 times [2024-11-19 09:37:50,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:37:50,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291354114] [2024-11-19 09:37:50,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:37:50,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:37:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:37:50,665 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:37:50,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:37:50,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291354114] [2024-11-19 09:37:50,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291354114] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:37:50,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093538356] [2024-11-19 09:37:50,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:37:50,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:37:50,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:37:50,668 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:37:50,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 09:37:50,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:37:50,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 09:37:50,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:37:50,770 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:37:50,770 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:37:50,845 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:37:50,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093538356] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:37:50,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:37:50,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-19 09:37:50,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004280472] [2024-11-19 09:37:50,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:37:50,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 09:37:50,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:37:50,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 09:37:50,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-19 09:37:50,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2024-11-19 09:37:50,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 82 flow. Second operand has 13 states, 13 states have (on average 13.307692307692308) internal successors, (173), 13 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:37:50,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:37:50,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2024-11-19 09:37:50,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:37:50,940 INFO L124 PetriNetUnfolderBase]: 43/135 cut-off events. [2024-11-19 09:37:50,944 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-11-19 09:37:50,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 135 events. 43/135 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 432 event pairs, 42 based on Foata normal form. 6/140 useless extension candidates. Maximal degree in co-relation 268. Up to 102 conditions per place. [2024-11-19 09:37:50,947 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 16 selfloop transitions, 11 changer transitions 0/34 dead transitions. [2024-11-19 09:37:50,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 34 transitions, 172 flow [2024-11-19 09:37:50,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 09:37:50,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-19 09:37:50,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 177 transitions. [2024-11-19 09:37:50,951 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5086206896551724 [2024-11-19 09:37:50,952 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 82 flow. Second operand 12 states and 177 transitions. [2024-11-19 09:37:50,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 34 transitions, 172 flow [2024-11-19 09:37:50,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 34 transitions, 171 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:37:50,955 INFO L231 Difference]: Finished difference. Result has 53 places, 34 transitions, 165 flow [2024-11-19 09:37:50,956 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=165, PETRI_PLACES=53, PETRI_TRANSITIONS=34} [2024-11-19 09:37:50,957 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 22 predicate places. [2024-11-19 09:37:50,957 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 34 transitions, 165 flow [2024-11-19 09:37:50,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.307692307692308) internal successors, (173), 13 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:37:50,958 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:37:50,958 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:37:50,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 09:37:51,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-19 09:37:51,159 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-19 09:37:51,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:37:51,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1656026432, now seen corresponding path program 2 times [2024-11-19 09:37:51,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:37:51,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924830135] [2024-11-19 09:37:51,161 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:37:51,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:37:51,178 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 09:37:51,178 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:37:51,279 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-19 09:37:51,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:37:51,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924830135] [2024-11-19 09:37:51,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924830135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:37:51,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:37:51,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:37:51,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422482097] [2024-11-19 09:37:51,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:37:51,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:37:51,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:37:51,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:37:51,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:37:51,307 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 29 [2024-11-19 09:37:51,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 34 transitions, 165 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:37:51,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:37:51,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 29 [2024-11-19 09:37:51,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:37:51,385 INFO L124 PetriNetUnfolderBase]: 43/131 cut-off events. [2024-11-19 09:37:51,386 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-19 09:37:51,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 131 events. 43/131 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 397 event pairs, 36 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 287. Up to 86 conditions per place. [2024-11-19 09:37:51,387 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 27 selfloop transitions, 3 changer transitions 3/38 dead transitions. [2024-11-19 09:37:51,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 38 transitions, 239 flow [2024-11-19 09:37:51,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:37:51,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:37:51,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 65 transitions. [2024-11-19 09:37:51,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5603448275862069 [2024-11-19 09:37:51,393 INFO L175 Difference]: Start difference. First operand has 53 places, 34 transitions, 165 flow. Second operand 4 states and 65 transitions. [2024-11-19 09:37:51,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 38 transitions, 239 flow [2024-11-19 09:37:51,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 38 transitions, 191 flow, removed 19 selfloop flow, removed 5 redundant places. [2024-11-19 09:37:51,398 INFO L231 Difference]: Finished difference. Result has 49 places, 32 transitions, 119 flow [2024-11-19 09:37:51,398 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=119, PETRI_PLACES=49, PETRI_TRANSITIONS=32} [2024-11-19 09:37:51,400 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 18 predicate places. [2024-11-19 09:37:51,401 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 32 transitions, 119 flow [2024-11-19 09:37:51,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:37:51,401 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:37:51,402 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:37:51,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 09:37:51,402 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-19 09:37:51,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:37:51,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1655194022, now seen corresponding path program 1 times [2024-11-19 09:37:51,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:37:51,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546633216] [2024-11-19 09:37:51,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:37:51,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:37:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:37:51,615 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-19 09:37:51,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:37:51,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546633216] [2024-11-19 09:37:51,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546633216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:37:51,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:37:51,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:37:51,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983518321] [2024-11-19 09:37:51,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:37:51,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:37:51,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:37:51,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:37:51,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:37:51,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 29 [2024-11-19 09:37:51,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 32 transitions, 119 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:37:51,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:37:51,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 29 [2024-11-19 09:37:51,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:37:51,711 INFO L124 PetriNetUnfolderBase]: 43/121 cut-off events. [2024-11-19 09:37:51,711 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-19 09:37:51,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 121 events. 43/121 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 353 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 262. Up to 90 conditions per place. [2024-11-19 09:37:51,713 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 30 selfloop transitions, 2 changer transitions 2/37 dead transitions. [2024-11-19 09:37:51,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 37 transitions, 199 flow [2024-11-19 09:37:51,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:37:51,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:37:51,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2024-11-19 09:37:51,714 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5689655172413793 [2024-11-19 09:37:51,714 INFO L175 Difference]: Start difference. First operand has 49 places, 32 transitions, 119 flow. Second operand 4 states and 66 transitions. [2024-11-19 09:37:51,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 37 transitions, 199 flow [2024-11-19 09:37:51,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 37 transitions, 191 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 09:37:51,717 INFO L231 Difference]: Finished difference. Result has 47 places, 29 transitions, 111 flow [2024-11-19 09:37:51,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=111, PETRI_PLACES=47, PETRI_TRANSITIONS=29} [2024-11-19 09:37:51,718 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 16 predicate places. [2024-11-19 09:37:51,718 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 29 transitions, 111 flow [2024-11-19 09:37:51,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:37:51,718 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:37:51,718 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:37:51,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 09:37:51,719 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-19 09:37:51,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:37:51,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1746334513, now seen corresponding path program 1 times [2024-11-19 09:37:51,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:37:51,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710666355] [2024-11-19 09:37:51,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:37:51,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:37:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:37:51,766 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-19 09:37:51,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:37:51,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710666355] [2024-11-19 09:37:51,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710666355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:37:51,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:37:51,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:37:51,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736418452] [2024-11-19 09:37:51,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:37:51,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:37:51,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:37:51,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:37:51,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:37:51,778 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 29 [2024-11-19 09:37:51,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 29 transitions, 111 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:37:51,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:37:51,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 29 [2024-11-19 09:37:51,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:37:51,816 INFO L124 PetriNetUnfolderBase]: 37/104 cut-off events. [2024-11-19 09:37:51,816 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-19 09:37:51,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 104 events. 37/104 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 255 event pairs, 36 based on Foata normal form. 7/110 useless extension candidates. Maximal degree in co-relation 231. Up to 98 conditions per place. [2024-11-19 09:37:51,817 INFO L140 encePairwiseOnDemand]: 27/29 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2024-11-19 09:37:51,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 28 transitions, 161 flow [2024-11-19 09:37:51,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:37:51,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:37:51,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2024-11-19 09:37:51,818 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5747126436781609 [2024-11-19 09:37:51,818 INFO L175 Difference]: Start difference. First operand has 47 places, 29 transitions, 111 flow. Second operand 3 states and 50 transitions. [2024-11-19 09:37:51,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 28 transitions, 161 flow [2024-11-19 09:37:51,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 28 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:37:51,820 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2024-11-19 09:37:51,820 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2024-11-19 09:37:51,820 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 14 predicate places. [2024-11-19 09:37:51,820 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2024-11-19 09:37:51,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:37:51,827 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 14 remaining) [2024-11-19 09:37:51,828 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2024-11-19 09:37:51,828 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2024-11-19 09:37:51,828 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2024-11-19 09:37:51,828 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 14 remaining) [2024-11-19 09:37:51,828 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2024-11-19 09:37:51,829 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2024-11-19 09:37:51,829 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2024-11-19 09:37:51,829 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 14 remaining) [2024-11-19 09:37:51,829 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 14 remaining) [2024-11-19 09:37:51,829 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 14 remaining) [2024-11-19 09:37:51,830 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 14 remaining) [2024-11-19 09:37:51,830 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 14 remaining) [2024-11-19 09:37:51,830 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 14 remaining) [2024-11-19 09:37:51,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 09:37:51,830 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2024-11-19 09:37:51,837 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 09:37:51,837 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 09:37:51,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:37:51 BasicIcfg [2024-11-19 09:37:51,847 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 09:37:51,848 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 09:37:51,848 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 09:37:51,848 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 09:37:51,849 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:37:48" (3/4) ... [2024-11-19 09:37:51,851 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 09:37:51,853 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-19 09:37:51,860 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 89 nodes and edges [2024-11-19 09:37:51,863 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-19 09:37:51,863 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 09:37:51,949 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 09:37:51,949 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 09:37:51,949 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 09:37:51,950 INFO L158 Benchmark]: Toolchain (without parser) took 4768.65ms. Allocated memory was 148.9MB in the beginning and 192.9MB in the end (delta: 44.0MB). Free memory was 93.8MB in the beginning and 111.3MB in the end (delta: -17.4MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2024-11-19 09:37:51,950 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 148.9MB. Free memory is still 116.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 09:37:51,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 712.10ms. Allocated memory is still 148.9MB. Free memory was 93.7MB in the beginning and 61.0MB in the end (delta: 32.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-19 09:37:51,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.35ms. Allocated memory is still 148.9MB. Free memory was 60.4MB in the beginning and 58.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 09:37:51,951 INFO L158 Benchmark]: Boogie Preprocessor took 73.39ms. Allocated memory is still 148.9MB. Free memory was 58.1MB in the beginning and 55.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 09:37:51,951 INFO L158 Benchmark]: RCFGBuilder took 921.34ms. Allocated memory was 148.9MB in the beginning and 192.9MB in the end (delta: 44.0MB). Free memory was 55.4MB in the beginning and 81.6MB in the end (delta: -26.3MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2024-11-19 09:37:51,952 INFO L158 Benchmark]: TraceAbstraction took 2879.72ms. Allocated memory is still 192.9MB. Free memory was 81.6MB in the beginning and 116.5MB in the end (delta: -34.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 09:37:51,952 INFO L158 Benchmark]: Witness Printer took 102.06ms. Allocated memory is still 192.9MB. Free memory was 116.5MB in the beginning and 111.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 09:37:51,953 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 148.9MB. Free memory is still 116.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 712.10ms. Allocated memory is still 148.9MB. Free memory was 93.7MB in the beginning and 61.0MB in the end (delta: 32.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.35ms. Allocated memory is still 148.9MB. Free memory was 60.4MB in the beginning and 58.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.39ms. Allocated memory is still 148.9MB. Free memory was 58.1MB in the beginning and 55.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 921.34ms. Allocated memory was 148.9MB in the beginning and 192.9MB in the end (delta: 44.0MB). Free memory was 55.4MB in the beginning and 81.6MB in the end (delta: -26.3MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2879.72ms. Allocated memory is still 192.9MB. Free memory was 81.6MB in the beginning and 116.5MB in the end (delta: -34.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 102.06ms. Allocated memory is still 192.9MB. Free memory was 116.5MB in the beginning and 111.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 935]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 42 locations, 14 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: 2.8s, OverallIterations: 7, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 161 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 299 IncrementalHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 5 mSDtfsCounter, 299 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=4, InterpolantAutomatonStates: 35, 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, 0.9s InterpolantComputationTime, 111 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 647 SizeOfPredicates, 0 NumberOfNonLiveVariables, 365 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 175/208 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 09:37:51,981 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