./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:19:53,603 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:19:53,684 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:19:53,691 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:19:53,692 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:19:53,721 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:19:53,722 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:19:53,722 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:19:53,722 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:19:53,723 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:19:53,723 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:19:53,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:19:53,725 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:19:53,725 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:19:53,726 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:19:53,726 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:19:53,726 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:19:53,727 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:19:53,727 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:19:53,727 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:19:53,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:19:53,732 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:19:53,732 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:19:53,732 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:19:53,732 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:19:53,733 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:19:53,733 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:19:53,733 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:19:53,733 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:19:53,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:19:53,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:19:53,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:19:53,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:19:53,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:19:53,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:19:53,737 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:19:53,737 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:19:53,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:19:53,738 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:19:53,738 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:19:53,738 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:19:53,738 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:19:53,739 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f [2024-11-16 19:19:53,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:19:54,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:19:54,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:19:54,016 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:19:54,017 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:19:54,018 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2024-11-16 19:19:55,531 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:19:55,795 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:19:55,796 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2024-11-16 19:19:55,812 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50d1e1003/1b9a4e1c34954b6ab5bbf253e6b619a8/FLAG863b46a19 [2024-11-16 19:19:55,823 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50d1e1003/1b9a4e1c34954b6ab5bbf253e6b619a8 [2024-11-16 19:19:55,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:19:55,827 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:19:55,828 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:19:55,828 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:19:55,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:19:55,834 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:19:55" (1/1) ... [2024-11-16 19:19:55,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54ba2e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:55, skipping insertion in model container [2024-11-16 19:19:55,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:19:55" (1/1) ... [2024-11-16 19:19:55,882 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:19:56,190 WARN L250 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/28-race_reach_09-ptrmunge_racing.i[30176,30189] [2024-11-16 19:19:56,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:19:56,246 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:19:56,295 WARN L250 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/28-race_reach_09-ptrmunge_racing.i[30176,30189] [2024-11-16 19:19:56,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:19:56,430 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:19:56,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:56 WrapperNode [2024-11-16 19:19:56,431 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:19:56,432 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:19:56,433 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:19:56,433 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:19:56,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:56" (1/1) ... [2024-11-16 19:19:56,462 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:56" (1/1) ... [2024-11-16 19:19:56,495 INFO L138 Inliner]: procedures = 173, calls = 54, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 225 [2024-11-16 19:19:56,497 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:19:56,498 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:19:56,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:19:56,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:19:56,508 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:56" (1/1) ... [2024-11-16 19:19:56,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:56" (1/1) ... [2024-11-16 19:19:56,513 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:56" (1/1) ... [2024-11-16 19:19:56,539 INFO L175 MemorySlicer]: Split 32 memory accesses to 7 slices as follows [2, 2, 5, 2, 5, 5, 11]. 34 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 0, 5, 0, 5, 5, 1]. The 6 writes are split as follows [0, 1, 0, 1, 0, 0, 4]. [2024-11-16 19:19:56,540 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:56" (1/1) ... [2024-11-16 19:19:56,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:56" (1/1) ... [2024-11-16 19:19:56,555 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:56" (1/1) ... [2024-11-16 19:19:56,555 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:56" (1/1) ... [2024-11-16 19:19:56,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:56" (1/1) ... [2024-11-16 19:19:56,558 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:56" (1/1) ... [2024-11-16 19:19:56,565 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:19:56,566 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:19:56,569 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:19:56,569 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:19:56,570 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:56" (1/1) ... [2024-11-16 19:19:56,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:19:56,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:19:56,609 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) [2024-11-16 19:19:56,613 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 [2024-11-16 19:19:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:19:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:19:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 19:19:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 19:19:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 19:19:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 19:19:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-16 19:19:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-16 19:19:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-16 19:19:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:19:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:19:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 19:19:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 19:19:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 19:19:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 19:19:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-16 19:19:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 19:19:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:19:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 19:19:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-16 19:19:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-16 19:19:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 19:19:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:19:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:19:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 19:19:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 19:19:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 19:19:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 19:19:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 19:19:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 19:19:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:19:56,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:19:56,666 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 19:19:56,818 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:19:56,821 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:19:57,143 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L715: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2024-11-16 19:19:57,143 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L715-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2024-11-16 19:19:57,144 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L715-2: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2024-11-16 19:19:57,144 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L715-3: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2024-11-16 19:19:57,145 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:19:57,146 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:19:57,316 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:19:57,316 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:19:57,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:19:57 BoogieIcfgContainer [2024-11-16 19:19:57,317 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:19:57,319 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:19:57,321 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:19:57,324 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:19:57,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:19:55" (1/3) ... [2024-11-16 19:19:57,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7139e50d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:19:57, skipping insertion in model container [2024-11-16 19:19:57,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:56" (2/3) ... [2024-11-16 19:19:57,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7139e50d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:19:57, skipping insertion in model container [2024-11-16 19:19:57,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:19:57" (3/3) ... [2024-11-16 19:19:57,327 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2024-11-16 19:19:57,343 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:19:57,343 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 19:19:57,343 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:19:57,412 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-16 19:19:57,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 121 transitions, 262 flow [2024-11-16 19:19:57,506 INFO L124 PetriNetUnfolderBase]: 58/226 cut-off events. [2024-11-16 19:19:57,507 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-16 19:19:57,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 226 events. 58/226 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1053 event pairs, 0 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 135. Up to 8 conditions per place. [2024-11-16 19:19:57,514 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 121 transitions, 262 flow [2024-11-16 19:19:57,522 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 121 transitions, 262 flow [2024-11-16 19:19:57,531 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:19:57,538 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;@4d83f1ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:19:57,538 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-16 19:19:57,550 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:19:57,550 INFO L124 PetriNetUnfolderBase]: 4/31 cut-off events. [2024-11-16 19:19:57,551 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:19:57,551 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:19:57,552 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-16 19:19:57,552 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:19:57,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:19:57,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1618211095, now seen corresponding path program 1 times [2024-11-16 19:19:57,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:19:57,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561198626] [2024-11-16 19:19:57,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:19:57,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:19:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:19:57,732 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 19:19:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:19:57,812 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 19:19:57,814 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 19:19:57,815 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-16 19:19:57,817 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-16 19:19:57,818 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-16 19:19:57,819 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2024-11-16 19:19:57,819 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-11-16 19:19:57,820 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-11-16 19:19:57,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:19:57,820 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-16 19:19:57,824 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 19:19:57,824 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 19:19:57,896 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-16 19:19:57,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 215 transitions, 474 flow [2024-11-16 19:19:58,136 INFO L124 PetriNetUnfolderBase]: 197/687 cut-off events. [2024-11-16 19:19:58,136 INFO L125 PetriNetUnfolderBase]: For 72/75 co-relation queries the response was YES. [2024-11-16 19:19:58,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 687 events. 197/687 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4113 event pairs, 2 based on Foata normal form. 0/495 useless extension candidates. Maximal degree in co-relation 429. Up to 32 conditions per place. [2024-11-16 19:19:58,154 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 215 transitions, 474 flow [2024-11-16 19:19:58,164 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 215 transitions, 474 flow [2024-11-16 19:19:58,166 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:19:58,167 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;@4d83f1ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:19:58,167 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-16 19:19:58,176 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:19:58,177 INFO L124 PetriNetUnfolderBase]: 16/101 cut-off events. [2024-11-16 19:19:58,177 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 19:19:58,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:19:58,177 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1] [2024-11-16 19:19:58,178 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-16 19:19:58,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:19:58,178 INFO L85 PathProgramCache]: Analyzing trace with hash 40946606, now seen corresponding path program 1 times [2024-11-16 19:19:58,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:19:58,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366552417] [2024-11-16 19:19:58,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:19:58,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:19:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:19:58,205 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 19:19:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:19:58,235 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 19:19:58,235 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 19:19:58,236 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-16 19:19:58,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2024-11-16 19:19:58,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 8 remaining) [2024-11-16 19:19:58,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2024-11-16 19:19:58,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2024-11-16 19:19:58,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2024-11-16 19:19:58,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2024-11-16 19:19:58,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2024-11-16 19:19:58,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:19:58,237 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-16 19:19:58,238 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 19:19:58,238 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-16 19:19:58,309 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-11-16 19:19:58,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 234 places, 309 transitions, 690 flow [2024-11-16 19:19:58,731 INFO L124 PetriNetUnfolderBase]: 664/1946 cut-off events. [2024-11-16 19:19:58,735 INFO L125 PetriNetUnfolderBase]: For 419/427 co-relation queries the response was YES. [2024-11-16 19:19:58,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2382 conditions, 1946 events. 664/1946 cut-off events. For 419/427 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 13001 event pairs, 64 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 1322. Up to 192 conditions per place. [2024-11-16 19:19:58,771 INFO L82 GeneralOperation]: Start removeDead. Operand has 234 places, 309 transitions, 690 flow [2024-11-16 19:19:58,802 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 234 places, 309 transitions, 690 flow [2024-11-16 19:19:58,804 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:19:58,805 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;@4d83f1ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:19:58,805 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-16 19:19:58,819 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:19:58,820 INFO L124 PetriNetUnfolderBase]: 27/156 cut-off events. [2024-11-16 19:19:58,820 INFO L125 PetriNetUnfolderBase]: For 13/14 co-relation queries the response was YES. [2024-11-16 19:19:58,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:19:58,820 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:19:58,821 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 7 more)] === [2024-11-16 19:19:58,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:19:58,821 INFO L85 PathProgramCache]: Analyzing trace with hash 196358409, now seen corresponding path program 1 times [2024-11-16 19:19:58,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:19:58,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370760874] [2024-11-16 19:19:58,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:19:58,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:19:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:19:59,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:19:59,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:19:59,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370760874] [2024-11-16 19:19:59,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370760874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:19:59,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:19:59,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:19:59,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789766547] [2024-11-16 19:19:59,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:19:59,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:19:59,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:19:59,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:19:59,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:19:59,204 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 309 [2024-11-16 19:19:59,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 309 transitions, 690 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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) [2024-11-16 19:19:59,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:19:59,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 309 [2024-11-16 19:19:59,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand