./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_10-ptrmunge_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:47:37,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:47:37,876 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:47:37,880 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:47:37,882 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:47:37,908 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:47:37,909 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:47:37,909 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:47:37,910 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:47:37,910 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:47:37,912 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:47:37,912 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:47:37,913 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:47:37,915 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:47:37,915 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:47:37,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:47:37,916 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:47:37,916 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:47:37,916 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:47:37,916 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:47:37,920 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:47:37,921 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:47:37,921 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:47:37,921 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:47:37,921 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:47:37,921 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:47:37,922 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:47:37,922 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:47:37,922 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:47:37,922 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:47:37,922 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:47:37,922 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:47:37,923 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:47:37,923 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:47:37,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:47:37,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:47:37,923 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:47:37,923 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:47:37,924 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:47:37,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:47:37,924 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:47:37,924 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:47:37,925 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:47:37,925 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:47:37,926 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 [2024-11-17 07:47:38,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:47:38,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:47:38,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:47:38,156 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:47:38,156 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:47:38,157 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2024-11-17 07:47:39,499 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:47:39,680 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:47:39,681 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2024-11-17 07:47:39,695 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcabfa607/4f8ac7ba2c764f21a8087a78c5c4ed48/FLAGabaa8133b [2024-11-17 07:47:39,709 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcabfa607/4f8ac7ba2c764f21a8087a78c5c4ed48 [2024-11-17 07:47:39,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:47:39,714 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:47:39,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:47:39,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:47:39,721 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:47:39,722 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:47:39" (1/1) ... [2024-11-17 07:47:39,723 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1011df38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:47:39, skipping insertion in model container [2024-11-17 07:47:39,723 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:47:39" (1/1) ... [2024-11-17 07:47:39,760 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:47:40,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:47:40,157 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:47:40,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:47:40,254 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:47:40,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:47:40 WrapperNode [2024-11-17 07:47:40,255 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:47:40,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:47:40,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:47:40,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:47:40,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:47:40" (1/1) ... [2024-11-17 07:47:40,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:47:40" (1/1) ... [2024-11-17 07:47:40,310 INFO L138 Inliner]: procedures = 173, calls = 57, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 247 [2024-11-17 07:47:40,314 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:47:40,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:47:40,315 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:47:40,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:47:40,326 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:47:40" (1/1) ... [2024-11-17 07:47:40,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:47:40" (1/1) ... [2024-11-17 07:47:40,330 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:47:40" (1/1) ... [2024-11-17 07:47:40,351 INFO L175 MemorySlicer]: Split 33 memory accesses to 8 slices as follows [2, 5, 5, 5, 2, 6, 6, 2]. 18 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 5, 5, 5, 0, 1, 1, 0]. The 6 writes are split as follows [0, 0, 0, 0, 1, 2, 2, 1]. [2024-11-17 07:47:40,355 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:47:40" (1/1) ... [2024-11-17 07:47:40,355 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:47:40" (1/1) ... [2024-11-17 07:47:40,364 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:47:40" (1/1) ... [2024-11-17 07:47:40,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:47:40" (1/1) ... [2024-11-17 07:47:40,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:47:40" (1/1) ... [2024-11-17 07:47:40,379 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:47:40" (1/1) ... [2024-11-17 07:47:40,382 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:47:40,383 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:47:40,383 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:47:40,383 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:47:40,384 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:47:40" (1/1) ... [2024-11-17 07:47:40,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:47:40,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:47:40,419 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) [2024-11-17 07:47:40,421 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 [2024-11-17 07:47:40,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:47:40,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:47:40,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 07:47:40,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-17 07:47:40,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-17 07:47:40,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-17 07:47:40,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-17 07:47:40,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-17 07:47:40,461 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-17 07:47:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-17 07:47:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:47:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:47:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 07:47:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-17 07:47:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-17 07:47:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-17 07:47:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-17 07:47:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-17 07:47:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-17 07:47:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:47:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 07:47:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-17 07:47:40,463 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-17 07:47:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 07:47:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:47:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:47:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 07:47:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-17 07:47:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-17 07:47:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-17 07:47:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-17 07:47:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-17 07:47:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-17 07:47:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:47:40,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:47:40,468 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:47:40,606 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:47:40,608 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:47:40,907 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L715: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2024-11-17 07:47:40,907 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 [2024-11-17 07:47:40,908 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L715-2: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2024-11-17 07:47:40,909 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 [2024-11-17 07:47:40,910 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:47:40,910 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:47:41,063 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:47:41,064 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:47:41,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:47:41 BoogieIcfgContainer [2024-11-17 07:47:41,064 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:47:41,067 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:47:41,067 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:47:41,069 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:47:41,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:47:39" (1/3) ... [2024-11-17 07:47:41,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c912bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:47:41, skipping insertion in model container [2024-11-17 07:47:41,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:47:40" (2/3) ... [2024-11-17 07:47:41,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c912bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:47:41, skipping insertion in model container [2024-11-17 07:47:41,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:47:41" (3/3) ... [2024-11-17 07:47:41,074 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_10-ptrmunge_racefree.i [2024-11-17 07:47:41,089 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:47:41,090 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-17 07:47:41,090 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:47:41,161 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-17 07:47:41,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 143 transitions, 306 flow [2024-11-17 07:47:41,273 INFO L124 PetriNetUnfolderBase]: 55/271 cut-off events. [2024-11-17 07:47:41,273 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-17 07:47:41,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 271 events. 55/271 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1279 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 157. Up to 8 conditions per place. [2024-11-17 07:47:41,281 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 143 transitions, 306 flow [2024-11-17 07:47:41,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 143 transitions, 306 flow [2024-11-17 07:47:41,294 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:47:41,300 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;@577aeada, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:47:41,300 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-17 07:47:41,304 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:47:41,305 INFO L124 PetriNetUnfolderBase]: 2/16 cut-off events. [2024-11-17 07:47:41,305 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:47:41,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:47:41,305 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 07:47:41,306 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-17 07:47:41,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:47:41,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1593157039, now seen corresponding path program 1 times [2024-11-17 07:47:41,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:47:41,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969042267] [2024-11-17 07:47:41,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:47:41,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:47:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:47:41,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:47:41,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:47:41,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969042267] [2024-11-17 07:47:41,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969042267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:47:41,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:47:41,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:47:41,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456438108] [2024-11-17 07:47:41,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:47:41,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:47:41,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:47:41,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:47:41,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:47:41,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 143 [2024-11-17 07:47:41,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 143 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 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) [2024-11-17 07:47:41,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:47:41,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 143 [2024-11-17 07:47:41,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:47:43,001 INFO L124 PetriNetUnfolderBase]: 5710/12551 cut-off events. [2024-11-17 07:47:43,002 INFO L125 PetriNetUnfolderBase]: For 152/152 co-relation queries the response was YES. [2024-11-17 07:47:43,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21528 conditions, 12551 events. 5710/12551 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 118298 event pairs, 2520 based on Foata normal form. 4147/15825 useless extension candidates. Maximal degree in co-relation 20606. Up to 8796 conditions per place. [2024-11-17 07:47:43,076 INFO L140 encePairwiseOnDemand]: 113/143 looper letters, 91 selfloop transitions, 3 changer transitions 0/154 dead transitions. [2024-11-17 07:47:43,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 154 transitions, 516 flow [2024-11-17 07:47:43,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:47:43,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:47:43,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 382 transitions. [2024-11-17 07:47:43,088 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6678321678321678 [2024-11-17 07:47:43,089 INFO L175 Difference]: Start difference. First operand has 118 places, 143 transitions, 306 flow. Second operand 4 states and 382 transitions. [2024-11-17 07:47:43,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 154 transitions, 516 flow [2024-11-17 07:47:43,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 154 transitions, 516 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:47:43,100 INFO L231 Difference]: Finished difference. Result has 120 places, 117 transitions, 264 flow [2024-11-17 07:47:43,102 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=264, PETRI_PLACES=120, PETRI_TRANSITIONS=117} [2024-11-17 07:47:43,106 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, 2 predicate places. [2024-11-17 07:47:43,107 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 117 transitions, 264 flow [2024-11-17 07:47:43,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 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) [2024-11-17 07:47:43,107 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:47:43,107 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:47:43,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:47:43,108 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-17 07:47:43,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:47:43,108 INFO L85 PathProgramCache]: Analyzing trace with hash -65582860, now seen corresponding path program 1 times [2024-11-17 07:47:43,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:47:43,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267676389] [2024-11-17 07:47:43,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:47:43,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:47:43,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 07:47:43,147 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 07:47:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 07:47:43,199 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 07:47:43,200 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 07:47:43,201 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-17 07:47:43,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2024-11-17 07:47:43,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2024-11-17 07:47:43,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2024-11-17 07:47:43,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2024-11-17 07:47:43,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2024-11-17 07:47:43,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2024-11-17 07:47:43,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2024-11-17 07:47:43,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2024-11-17 07:47:43,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2024-11-17 07:47:43,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2024-11-17 07:47:43,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2024-11-17 07:47:43,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2024-11-17 07:47:43,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2024-11-17 07:47:43,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2024-11-17 07:47:43,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2024-11-17 07:47:43,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2024-11-17 07:47:43,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2024-11-17 07:47:43,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2024-11-17 07:47:43,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2024-11-17 07:47:43,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2024-11-17 07:47:43,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2024-11-17 07:47:43,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2024-11-17 07:47:43,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2024-11-17 07:47:43,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2024-11-17 07:47:43,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2024-11-17 07:47:43,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:47:43,207 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-17 07:47:43,210 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-17 07:47:43,210 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-17 07:47:43,264 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-17 07:47:43,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 196 places, 243 transitions, 530 flow [2024-11-17 07:47:43,394 INFO L124 PetriNetUnfolderBase]: 189/863 cut-off events. [2024-11-17 07:47:43,394 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-11-17 07:47:43,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 952 conditions, 863 events. 189/863 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5393 event pairs, 2 based on Foata normal form. 0/579 useless extension candidates. Maximal degree in co-relation 524. Up to 32 conditions per place. [2024-11-17 07:47:43,404 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 243 transitions, 530 flow [2024-11-17 07:47:43,418 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 196 places, 243 transitions, 530 flow [2024-11-17 07:47:43,421 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:47:43,422 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;@577aeada, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:47:43,422 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-11-17 07:47:43,424 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:47:43,424 INFO L124 PetriNetUnfolderBase]: 2/16 cut-off events. [2024-11-17 07:47:43,424 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:47:43,424 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:47:43,425 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 07:47:43,425 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-17 07:47:43,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:47:43,427 INFO L85 PathProgramCache]: Analyzing trace with hash 132926638, now seen corresponding path program 1 times [2024-11-17 07:47:43,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:47:43,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495778175] [2024-11-17 07:47:43,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:47:43,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:47:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:47:43,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:47:43,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:47:43,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495778175] [2024-11-17 07:47:43,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495778175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:47:43,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:47:43,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:47:43,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117398528] [2024-11-17 07:47:43,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:47:43,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:47:43,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:47:43,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:47:43,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:47:43,494 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 243 [2024-11-17 07:47:43,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 243 transitions, 530 flow. Second operand has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 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) [2024-11-17 07:47:43,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:47:43,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 243 [2024-11-17 07:47:43,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand