./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i --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/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i -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 a233f90faab2ceb8ddfb042463870c03c0794d3cd45b2ba20de731314559cb95 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 14:21:44,998 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 14:21:45,067 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 14:21:45,073 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 14:21:45,074 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 14:21:45,102 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 14:21:45,103 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 14:21:45,103 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 14:21:45,104 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 14:21:45,105 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 14:21:45,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 14:21:45,106 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 14:21:45,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 14:21:45,107 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 14:21:45,109 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 14:21:45,110 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 14:21:45,110 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 14:21:45,110 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 14:21:45,111 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 14:21:45,111 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 14:21:45,111 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 14:21:45,112 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 14:21:45,112 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 14:21:45,112 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 14:21:45,112 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 14:21:45,113 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 14:21:45,113 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 14:21:45,113 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 14:21:45,113 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 14:21:45,114 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 14:21:45,114 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 14:21:45,114 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 14:21:45,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:21:45,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 14:21:45,115 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 14:21:45,116 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 14:21:45,116 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 14:21:45,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 14:21:45,116 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 14:21:45,117 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 14:21:45,117 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 14:21:45,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 14:21:45,119 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a233f90faab2ceb8ddfb042463870c03c0794d3cd45b2ba20de731314559cb95 [2024-10-11 14:21:45,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 14:21:45,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 14:21:45,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 14:21:45,412 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 14:21:45,412 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 14:21:45,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2024-10-11 14:21:46,865 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 14:21:47,119 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 14:21:47,119 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2024-10-11 14:21:47,137 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/624fe8627/f04c871f7a7040b6ae8d6fb1c12c6b86/FLAG24ca7e61d [2024-10-11 14:21:47,151 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/624fe8627/f04c871f7a7040b6ae8d6fb1c12c6b86 [2024-10-11 14:21:47,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 14:21:47,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 14:21:47,157 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 14:21:47,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 14:21:47,163 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 14:21:47,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:47" (1/1) ... [2024-10-11 14:21:47,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e1afebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:47, skipping insertion in model container [2024-10-11 14:21:47,167 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:47" (1/1) ... [2024-10-11 14:21:47,213 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 14:21:47,417 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/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2024-10-11 14:21:47,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:21:47,559 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 14:21:47,574 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/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2024-10-11 14:21:47,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:21:47,681 INFO L204 MainTranslator]: Completed translation [2024-10-11 14:21:47,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:47 WrapperNode [2024-10-11 14:21:47,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 14:21:47,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 14:21:47,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 14:21:47,684 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 14:21:47,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:47" (1/1) ... [2024-10-11 14:21:47,705 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:47" (1/1) ... [2024-10-11 14:21:47,732 INFO L138 Inliner]: procedures = 162, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2024-10-11 14:21:47,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 14:21:47,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 14:21:47,736 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 14:21:47,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 14:21:47,747 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:47" (1/1) ... [2024-10-11 14:21:47,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:47" (1/1) ... [2024-10-11 14:21:47,754 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:47" (1/1) ... [2024-10-11 14:21:47,782 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-10-11 14:21:47,782 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:47" (1/1) ... [2024-10-11 14:21:47,782 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:47" (1/1) ... [2024-10-11 14:21:47,786 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:47" (1/1) ... [2024-10-11 14:21:47,792 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:47" (1/1) ... [2024-10-11 14:21:47,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:47" (1/1) ... [2024-10-11 14:21:47,802 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:47" (1/1) ... [2024-10-11 14:21:47,804 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 14:21:47,809 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 14:21:47,810 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 14:21:47,810 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 14:21:47,811 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:47" (1/1) ... [2024-10-11 14:21:47,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:21:47,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:21:47,849 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 14:21:47,852 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 14:21:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 14:21:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 14:21:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 14:21:47,906 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 14:21:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 14:21:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 14:21:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 14:21:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 14:21:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 14:21:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 14:21:47,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 14:21:47,911 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 14:21:48,029 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 14:21:48,031 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 14:21:48,306 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 14:21:48,306 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 14:21:48,462 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 14:21:48,463 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 14:21:48,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:48 BoogieIcfgContainer [2024-10-11 14:21:48,463 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 14:21:48,465 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 14:21:48,465 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 14:21:48,470 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 14:21:48,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:21:47" (1/3) ... [2024-10-11 14:21:48,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e557a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:48, skipping insertion in model container [2024-10-11 14:21:48,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:47" (2/3) ... [2024-10-11 14:21:48,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e557a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:48, skipping insertion in model container [2024-10-11 14:21:48,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:48" (3/3) ... [2024-10-11 14:21:48,474 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2024-10-11 14:21:48,488 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 14:21:48,488 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 14:21:48,488 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 14:21:48,520 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-11 14:21:48,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 49 transitions, 105 flow [2024-10-11 14:21:48,587 INFO L124 PetriNetUnfolderBase]: 2/48 cut-off events. [2024-10-11 14:21:48,588 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 14:21:48,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 48 events. 2/48 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2024-10-11 14:21:48,594 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 49 transitions, 105 flow [2024-10-11 14:21:48,597 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 39 transitions, 81 flow [2024-10-11 14:21:48,612 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:21:48,622 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;@69fd93ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:21:48,623 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-11 14:21:48,631 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 14:21:48,632 INFO L124 PetriNetUnfolderBase]: 1/17 cut-off events. [2024-10-11 14:21:48,632 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 14:21:48,632 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:21:48,634 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:21:48,635 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-11 14:21:48,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:21:48,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1392606233, now seen corresponding path program 1 times [2024-10-11 14:21:48,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:21:48,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608404265] [2024-10-11 14:21:48,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:21:48,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:21:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:21:49,049 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 14:21:49,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:21:49,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608404265] [2024-10-11 14:21:49,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608404265] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:21:49,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:21:49,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 14:21:49,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591385336] [2024-10-11 14:21:49,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:21:49,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:21:49,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:21:49,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:21:49,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 14:21:49,108 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2024-10-11 14:21:49,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 39 transitions, 81 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 14:21:49,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:21:49,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2024-10-11 14:21:49,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:21:49,356 INFO L124 PetriNetUnfolderBase]: 141/384 cut-off events. [2024-10-11 14:21:49,356 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 14:21:49,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 707 conditions, 384 events. 141/384 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1770 event pairs, 72 based on Foata normal form. 20/392 useless extension candidates. Maximal degree in co-relation 698. Up to 176 conditions per place. [2024-10-11 14:21:49,381 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 37 selfloop transitions, 8 changer transitions 7/64 dead transitions. [2024-10-11 14:21:49,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 64 transitions, 235 flow [2024-10-11 14:21:49,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 14:21:49,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 14:21:49,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2024-10-11 14:21:49,403 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2024-10-11 14:21:49,405 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 81 flow. Second operand 5 states and 133 transitions. [2024-10-11 14:21:49,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 64 transitions, 235 flow [2024-10-11 14:21:49,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 64 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 14:21:49,420 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 134 flow [2024-10-11 14:21:49,443 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=134, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2024-10-11 14:21:49,453 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 7 predicate places. [2024-10-11 14:21:49,456 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 134 flow [2024-10-11 14:21:49,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 14:21:49,457 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:21:49,457 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:21:49,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 14:21:49,461 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-11 14:21:49,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:21:49,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1178476324, now seen corresponding path program 1 times [2024-10-11 14:21:49,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:21:49,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3976819] [2024-10-11 14:21:49,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:21:49,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:21:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:21:49,594 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 14:21:49,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:21:49,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3976819] [2024-10-11 14:21:49,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3976819] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:21:49,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:21:49,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 14:21:49,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907332605] [2024-10-11 14:21:49,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:21:49,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 14:21:49,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:21:49,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 14:21:49,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 14:21:49,598 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-10-11 14:21:49,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 14:21:49,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:21:49,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-10-11 14:21:49,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:21:49,767 INFO L124 PetriNetUnfolderBase]: 82/290 cut-off events. [2024-10-11 14:21:49,767 INFO L125 PetriNetUnfolderBase]: For 67/70 co-relation queries the response was YES. [2024-10-11 14:21:49,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 290 events. 82/290 cut-off events. For 67/70 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1320 event pairs, 31 based on Foata normal form. 19/303 useless extension candidates. Maximal degree in co-relation 612. Up to 127 conditions per place. [2024-10-11 14:21:49,770 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 25 selfloop transitions, 8 changer transitions 9/58 dead transitions. [2024-10-11 14:21:49,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 58 transitions, 264 flow [2024-10-11 14:21:49,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 14:21:49,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 14:21:49,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2024-10-11 14:21:49,775 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6870748299319728 [2024-10-11 14:21:49,776 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 134 flow. Second operand 3 states and 101 transitions. [2024-10-11 14:21:49,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 58 transitions, 264 flow [2024-10-11 14:21:49,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 58 transitions, 254 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-10-11 14:21:49,782 INFO L231 Difference]: Finished difference. Result has 51 places, 43 transitions, 154 flow [2024-10-11 14:21:49,782 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=51, PETRI_TRANSITIONS=43} [2024-10-11 14:21:49,783 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places. [2024-10-11 14:21:49,784 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 154 flow [2024-10-11 14:21:49,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 14:21:49,785 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:21:49,785 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:21:49,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 14:21:49,786 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-11 14:21:49,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:21:49,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1264830101, now seen corresponding path program 1 times [2024-10-11 14:21:49,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:21:49,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599952816] [2024-10-11 14:21:49,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:21:49,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:21:49,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:21:50,006 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 14:21:50,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:21:50,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599952816] [2024-10-11 14:21:50,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599952816] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:21:50,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:21:50,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 14:21:50,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240885661] [2024-10-11 14:21:50,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:21:50,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:21:50,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:21:50,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:21:50,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:21:50,010 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-10-11 14:21:50,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 154 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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 14:21:50,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:21:50,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-10-11 14:21:50,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:21:50,115 INFO L124 PetriNetUnfolderBase]: 56/238 cut-off events. [2024-10-11 14:21:50,115 INFO L125 PetriNetUnfolderBase]: For 148/150 co-relation queries the response was YES. [2024-10-11 14:21:50,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 238 events. 56/238 cut-off events. For 148/150 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1012 event pairs, 29 based on Foata normal form. 6/241 useless extension candidates. Maximal degree in co-relation 573. Up to 112 conditions per place. [2024-10-11 14:21:50,121 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 23 selfloop transitions, 5 changer transitions 4/45 dead transitions. [2024-10-11 14:21:50,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 45 transitions, 220 flow [2024-10-11 14:21:50,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:21:50,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 14:21:50,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 108 transitions. [2024-10-11 14:21:50,124 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5510204081632653 [2024-10-11 14:21:50,124 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 154 flow. Second operand 4 states and 108 transitions. [2024-10-11 14:21:50,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 45 transitions, 220 flow [2024-10-11 14:21:50,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 45 transitions, 193 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-10-11 14:21:50,129 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 119 flow [2024-10-11 14:21:50,130 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=119, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2024-10-11 14:21:50,131 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2024-10-11 14:21:50,132 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 119 flow [2024-10-11 14:21:50,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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 14:21:50,132 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:21:50,132 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 14:21:50,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 14:21:50,133 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-11 14:21:50,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:21:50,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1274935650, now seen corresponding path program 1 times [2024-10-11 14:21:50,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:21:50,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506510131] [2024-10-11 14:21:50,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:21:50,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:21:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:21:50,345 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 14:21:50,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:21:50,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506510131] [2024-10-11 14:21:50,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506510131] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:21:50,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:21:50,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 14:21:50,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628120627] [2024-10-11 14:21:50,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:21:50,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:21:50,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:21:50,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:21:50,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:21:50,352 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-10-11 14:21:50,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 14:21:50,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:21:50,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-10-11 14:21:50,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:21:50,438 INFO L124 PetriNetUnfolderBase]: 43/173 cut-off events. [2024-10-11 14:21:50,439 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-10-11 14:21:50,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 173 events. 43/173 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 617 event pairs, 18 based on Foata normal form. 1/168 useless extension candidates. Maximal degree in co-relation 386. Up to 76 conditions per place. [2024-10-11 14:21:50,440 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 14 selfloop transitions, 6 changer transitions 12/43 dead transitions. [2024-10-11 14:21:50,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 43 transitions, 191 flow [2024-10-11 14:21:50,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:21:50,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 14:21:50,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2024-10-11 14:21:50,444 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5459183673469388 [2024-10-11 14:21:50,444 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 119 flow. Second operand 4 states and 107 transitions. [2024-10-11 14:21:50,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 43 transitions, 191 flow [2024-10-11 14:21:50,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 43 transitions, 178 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 14:21:50,448 INFO L231 Difference]: Finished difference. Result has 45 places, 28 transitions, 87 flow [2024-10-11 14:21:50,448 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=87, PETRI_PLACES=45, PETRI_TRANSITIONS=28} [2024-10-11 14:21:50,449 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2024-10-11 14:21:50,449 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 28 transitions, 87 flow [2024-10-11 14:21:50,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 14:21:50,449 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:21:50,449 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] [2024-10-11 14:21:50,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 14:21:50,450 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-11 14:21:50,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:21:50,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1796262827, now seen corresponding path program 1 times [2024-10-11 14:21:50,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:21:50,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820019240] [2024-10-11 14:21:50,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:21:50,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:21:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:21:50,659 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 14:21:50,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:21:50,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820019240] [2024-10-11 14:21:50,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820019240] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:21:50,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:21:50,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 14:21:50,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712703443] [2024-10-11 14:21:50,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:21:50,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:21:50,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:21:50,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:21:50,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:21:50,662 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-10-11 14:21:50,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 28 transitions, 87 flow. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 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 14:21:50,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:21:50,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-10-11 14:21:50,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:21:50,725 INFO L124 PetriNetUnfolderBase]: 13/70 cut-off events. [2024-10-11 14:21:50,725 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-10-11 14:21:50,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 70 events. 13/70 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 183 event pairs, 0 based on Foata normal form. 7/76 useless extension candidates. Maximal degree in co-relation 142. Up to 38 conditions per place. [2024-10-11 14:21:50,725 INFO L140 encePairwiseOnDemand]: 46/49 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2024-10-11 14:21:50,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 32 transitions, 151 flow [2024-10-11 14:21:50,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:21:50,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 14:21:50,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2024-10-11 14:21:50,729 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5153061224489796 [2024-10-11 14:21:50,729 INFO L175 Difference]: Start difference. First operand has 45 places, 28 transitions, 87 flow. Second operand 4 states and 101 transitions. [2024-10-11 14:21:50,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 32 transitions, 151 flow [2024-10-11 14:21:50,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 32 transitions, 126 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-10-11 14:21:50,731 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2024-10-11 14:21:50,731 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2024-10-11 14:21:50,732 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, -9 predicate places. [2024-10-11 14:21:50,732 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2024-10-11 14:21:50,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 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 14:21:50,736 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-10-11 14:21:50,736 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-10-11 14:21:50,737 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-10-11 14:21:50,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 14:21:50,737 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-11 14:21:50,744 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 14:21:50,744 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 14:21:50,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:21:50 BasicIcfg [2024-10-11 14:21:50,755 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 14:21:50,755 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 14:21:50,756 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 14:21:50,756 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 14:21:50,756 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:48" (3/4) ... [2024-10-11 14:21:50,759 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 14:21:50,763 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-11 14:21:50,770 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-10-11 14:21:50,773 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-11 14:21:50,773 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-11 14:21:50,773 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 14:21:50,866 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 14:21:50,866 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 14:21:50,866 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 14:21:50,867 INFO L158 Benchmark]: Toolchain (without parser) took 3711.74ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 118.0MB in the beginning and 62.3MB in the end (delta: 55.7MB). Peak memory consumption was 88.6MB. Max. memory is 16.1GB. [2024-10-11 14:21:50,868 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 113.2MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 14:21:50,869 INFO L158 Benchmark]: CACSL2BoogieTranslator took 525.43ms. Allocated memory is still 157.3MB. Free memory was 117.6MB in the beginning and 95.9MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 14:21:50,869 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.53ms. Allocated memory is still 157.3MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 14:21:50,871 INFO L158 Benchmark]: Boogie Preprocessor took 69.34ms. Allocated memory is still 157.3MB. Free memory was 93.8MB in the beginning and 91.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 14:21:50,871 INFO L158 Benchmark]: RCFGBuilder took 653.87ms. Allocated memory is still 157.3MB. Free memory was 91.7MB in the beginning and 103.1MB in the end (delta: -11.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-11 14:21:50,871 INFO L158 Benchmark]: TraceAbstraction took 2289.94ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 102.4MB in the beginning and 66.5MB in the end (delta: 35.8MB). Peak memory consumption was 68.1MB. Max. memory is 16.1GB. [2024-10-11 14:21:50,872 INFO L158 Benchmark]: Witness Printer took 111.12ms. Allocated memory is still 188.7MB. Free memory was 66.5MB in the beginning and 62.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 14:21:50,875 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 113.2MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 525.43ms. Allocated memory is still 157.3MB. Free memory was 117.6MB in the beginning and 95.9MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.53ms. Allocated memory is still 157.3MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.34ms. Allocated memory is still 157.3MB. Free memory was 93.8MB in the beginning and 91.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 653.87ms. Allocated memory is still 157.3MB. Free memory was 91.7MB in the beginning and 103.1MB in the end (delta: -11.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2289.94ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 102.4MB in the beginning and 66.5MB in the end (delta: 35.8MB). Peak memory consumption was 68.1MB. Max. memory is 16.1GB. * Witness Printer took 111.12ms. Allocated memory is still 188.7MB. Free memory was 66.5MB in the beginning and 62.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 67 locations, 3 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: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 249 IncrementalHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 4 mSDtfsCounter, 249 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred in iteration=2, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 511 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 14:21:50,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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