./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f 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_94-alloc_region_racing.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 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:20:37,829 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:20:37,888 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:20:37,894 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:20:37,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:20:37,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:20:37,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:20:37,922 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:20:37,923 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:20:37,923 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:20:37,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:20:37,924 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:20:37,924 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:20:37,925 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:20:37,925 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:20:37,927 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:20:37,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:20:37,930 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:20:37,931 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:20:37,931 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:20:37,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:20:37,933 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:20:37,933 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:20:37,934 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:20:37,934 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:20:37,934 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:20:37,934 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:20:37,935 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:20:37,935 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:20:37,935 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:20:37,936 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:20:37,936 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:20:37,937 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:20:37,937 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:20:37,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:20:37,938 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:20:37,938 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:20:37,938 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:20:37,938 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:20:37,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:20:37,939 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:20:37,943 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:20:37,944 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:20:37,944 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:20:37,944 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2024-11-10 22:20:38,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:20:38,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:20:38,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:20:38,233 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:20:38,233 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:20:38,234 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2024-11-10 22:20:39,764 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:20:40,050 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:20:40,051 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2024-11-10 22:20:40,083 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46ceeee9c/d3242910819842cb80f7680713d3cc0c/FLAG02bdd8934 [2024-11-10 22:20:40,095 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46ceeee9c/d3242910819842cb80f7680713d3cc0c [2024-11-10 22:20:40,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:20:40,102 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:20:40,103 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:20:40,104 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:20:40,109 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:20:40,110 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:20:40" (1/1) ... [2024-11-10 22:20:40,110 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@140959ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:40, skipping insertion in model container [2024-11-10 22:20:40,110 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:20:40" (1/1) ... [2024-11-10 22:20:40,164 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:20:40,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:20:40,747 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:20:40,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:20:40,916 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:20:40,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:40 WrapperNode [2024-11-10 22:20:40,917 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:20:40,918 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:20:40,919 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:20:40,919 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:20:40,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:40" (1/1) ... [2024-11-10 22:20:40,956 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:40" (1/1) ... [2024-11-10 22:20:40,996 INFO L138 Inliner]: procedures = 378, calls = 83, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 269 [2024-11-10 22:20:40,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:20:40,997 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:20:40,997 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:20:40,997 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:20:41,010 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:40" (1/1) ... [2024-11-10 22:20:41,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:40" (1/1) ... [2024-11-10 22:20:41,017 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:40" (1/1) ... [2024-11-10 22:20:41,056 INFO L175 MemorySlicer]: Split 47 memory accesses to 7 slices as follows [2, 20, 5, 5, 5, 8, 2]. 43 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 0, 5, 5, 5, 1, 0]. The 16 writes are split as follows [0, 12, 0, 0, 0, 3, 1]. [2024-11-10 22:20:41,058 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:40" (1/1) ... [2024-11-10 22:20:41,059 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:40" (1/1) ... [2024-11-10 22:20:41,077 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:40" (1/1) ... [2024-11-10 22:20:41,082 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:40" (1/1) ... [2024-11-10 22:20:41,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:40" (1/1) ... [2024-11-10 22:20:41,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:40" (1/1) ... [2024-11-10 22:20:41,099 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:20:41,100 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:20:41,102 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:20:41,103 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:20:41,104 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:40" (1/1) ... [2024-11-10 22:20:41,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:20:41,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:41,145 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) [2024-11-10 22:20:41,148 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 [2024-11-10 22:20:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 22:20:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 22:20:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 22:20:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 22:20:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 22:20:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 22:20:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-10 22:20:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-10 22:20:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 22:20:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 22:20:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 22:20:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 22:20:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 22:20:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 22:20:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-10 22:20:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-10 22:20:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 22:20:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:20:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:20:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 22:20:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 22:20:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 22:20:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 22:20:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-10 22:20:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:20:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:20:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 22:20:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 22:20:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 22:20:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 22:20:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-10 22:20:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 22:20:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 22:20:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:20:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 22:20:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 22:20:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 22:20:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 22:20:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-10 22:20:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-10 22:20:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-10 22:20:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 22:20:41,203 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 22:20:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:20:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:20:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 22:20:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 22:20:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 22:20:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 22:20:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-10 22:20:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:20:41,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:20:41,206 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:20:41,402 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:20:41,405 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:20:41,818 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1270: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-10 22:20:41,818 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1270-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-10 22:20:41,820 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:20:41,820 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:20:42,182 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:20:42,183 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:20:42,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:20:42 BoogieIcfgContainer [2024-11-10 22:20:42,184 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:20:42,187 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:20:42,187 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:20:42,191 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:20:42,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:20:40" (1/3) ... [2024-11-10 22:20:42,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d222660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:20:42, skipping insertion in model container [2024-11-10 22:20:42,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:40" (2/3) ... [2024-11-10 22:20:42,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d222660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:20:42, skipping insertion in model container [2024-11-10 22:20:42,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:20:42" (3/3) ... [2024-11-10 22:20:42,196 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2024-11-10 22:20:42,214 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:20:42,214 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-10 22:20:42,215 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:20:42,283 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 22:20:42,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 130 transitions, 267 flow [2024-11-10 22:20:42,398 INFO L124 PetriNetUnfolderBase]: 42/195 cut-off events. [2024-11-10 22:20:42,398 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 22:20:42,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 195 events. 42/195 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 713 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 121. Up to 8 conditions per place. [2024-11-10 22:20:42,404 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 130 transitions, 267 flow [2024-11-10 22:20:42,409 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 129 transitions, 265 flow [2024-11-10 22:20:42,418 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:20:42,427 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;@7b788428, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:20:42,427 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-10 22:20:42,436 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:20:42,437 INFO L124 PetriNetUnfolderBase]: 1/12 cut-off events. [2024-11-10 22:20:42,437 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:20:42,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:42,438 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 22:20:42,439 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-10 22:20:42,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:42,445 INFO L85 PathProgramCache]: Analyzing trace with hash -775565512, now seen corresponding path program 1 times [2024-11-10 22:20:42,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:42,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536369129] [2024-11-10 22:20:42,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:42,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:42,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:42,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:42,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536369129] [2024-11-10 22:20:42,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536369129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:42,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:42,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:20:42,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651610306] [2024-11-10 22:20:42,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:42,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:20:42,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:42,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:20:42,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:20:42,977 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 130 [2024-11-10 22:20:42,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 129 transitions, 265 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2024-11-10 22:20:42,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:42,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 130 [2024-11-10 22:20:42,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:43,547 INFO L124 PetriNetUnfolderBase]: 696/1933 cut-off events. [2024-11-10 22:20:43,547 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 22:20:43,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3319 conditions, 1933 events. 696/1933 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 13336 event pairs, 0 based on Foata normal form. 553/2341 useless extension candidates. Maximal degree in co-relation 3278. Up to 1314 conditions per place. [2024-11-10 22:20:43,567 INFO L140 encePairwiseOnDemand]: 101/130 looper letters, 96 selfloop transitions, 3 changer transitions 0/147 dead transitions. [2024-11-10 22:20:43,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 147 transitions, 499 flow [2024-11-10 22:20:43,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:20:43,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:20:43,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 338 transitions. [2024-11-10 22:20:43,581 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-10 22:20:43,583 INFO L175 Difference]: Start difference. First operand has 106 places, 129 transitions, 265 flow. Second operand 4 states and 338 transitions. [2024-11-10 22:20:43,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 147 transitions, 499 flow [2024-11-10 22:20:43,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 147 transitions, 499 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:20:43,595 INFO L231 Difference]: Finished difference. Result has 108 places, 104 transitions, 225 flow [2024-11-10 22:20:43,597 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=225, PETRI_PLACES=108, PETRI_TRANSITIONS=104} [2024-11-10 22:20:43,603 INFO L277 CegarLoopForPetriNet]: 106 programPoint places, 2 predicate places. [2024-11-10 22:20:43,604 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 104 transitions, 225 flow [2024-11-10 22:20:43,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2024-11-10 22:20:43,604 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:43,605 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:43,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:20:43,605 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-10 22:20:43,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:43,606 INFO L85 PathProgramCache]: Analyzing trace with hash -798781350, now seen corresponding path program 1 times [2024-11-10 22:20:43,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:43,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490859318] [2024-11-10 22:20:43,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:43,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:20:43,677 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:20:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:20:43,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:20:43,743 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 22:20:43,744 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-10 22:20:43,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2024-11-10 22:20:43,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2024-11-10 22:20:43,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2024-11-10 22:20:43,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2024-11-10 22:20:43,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2024-11-10 22:20:43,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2024-11-10 22:20:43,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2024-11-10 22:20:43,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2024-11-10 22:20:43,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2024-11-10 22:20:43,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2024-11-10 22:20:43,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2024-11-10 22:20:43,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2024-11-10 22:20:43,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2024-11-10 22:20:43,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2024-11-10 22:20:43,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2024-11-10 22:20:43,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2024-11-10 22:20:43,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:20:43,753 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-10 22:20:43,796 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 22:20:43,797 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 22:20:43,843 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 22:20:43,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 183 transitions, 382 flow [2024-11-10 22:20:43,878 INFO L124 PetriNetUnfolderBase]: 71/335 cut-off events. [2024-11-10 22:20:43,878 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 22:20:43,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 335 events. 71/335 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1510 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 203. Up to 12 conditions per place. [2024-11-10 22:20:43,881 INFO L82 GeneralOperation]: Start removeDead. Operand has 149 places, 183 transitions, 382 flow [2024-11-10 22:20:43,885 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 183 transitions, 382 flow [2024-11-10 22:20:43,886 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:20:43,887 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;@7b788428, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:20:43,887 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-10 22:20:43,890 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:20:43,890 INFO L124 PetriNetUnfolderBase]: 1/12 cut-off events. [2024-11-10 22:20:43,891 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:20:43,891 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:43,891 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 22:20:43,891 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-10 22:20:43,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:43,892 INFO L85 PathProgramCache]: Analyzing trace with hash 343288651, now seen corresponding path program 1 times [2024-11-10 22:20:43,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:43,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789785544] [2024-11-10 22:20:43,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:43,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:43,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:43,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:43,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789785544] [2024-11-10 22:20:43,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789785544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:43,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:43,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:20:43,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483679363] [2024-11-10 22:20:43,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:43,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:20:43,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:43,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:20:43,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:20:44,007 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 183 [2024-11-10 22:20:44,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 183 transitions, 382 flow. Second operand has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 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) [2024-11-10 22:20:44,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:44,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 183 [2024-11-10 22:20:44,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:51,051 INFO L124 PetriNetUnfolderBase]: 33494/69694 cut-off events. [2024-11-10 22:20:51,051 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2024-11-10 22:20:51,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119635 conditions, 69694 events. 33494/69694 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 1593. Compared 744216 event pairs, 15330 based on Foata normal form. 19362/82832 useless extension candidates. Maximal degree in co-relation 6824. Up to 49757 conditions per place. [2024-11-10 22:20:51,454 INFO L140 encePairwiseOnDemand]: 144/183 looper letters, 124 selfloop transitions, 3 changer transitions 0/195 dead transitions. [2024-11-10 22:20:51,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 195 transitions, 660 flow [2024-11-10 22:20:51,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:20:51,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:20:51,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 456 transitions. [2024-11-10 22:20:51,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6229508196721312 [2024-11-10 22:20:51,463 INFO L175 Difference]: Start difference. First operand has 149 places, 183 transitions, 382 flow. Second operand 4 states and 456 transitions. [2024-11-10 22:20:51,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 195 transitions, 660 flow [2024-11-10 22:20:51,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 195 transitions, 660 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:20:51,471 INFO L231 Difference]: Finished difference. Result has 154 places, 152 transitions, 340 flow [2024-11-10 22:20:51,473 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=340, PETRI_PLACES=154, PETRI_TRANSITIONS=152} [2024-11-10 22:20:51,474 INFO L277 CegarLoopForPetriNet]: 149 programPoint places, 5 predicate places. [2024-11-10 22:20:51,474 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 152 transitions, 340 flow [2024-11-10 22:20:51,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 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) [2024-11-10 22:20:51,475 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:51,475 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:51,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:20:51,475 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-10 22:20:51,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:51,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1316794907, now seen corresponding path program 1 times [2024-11-10 22:20:51,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:51,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395281076] [2024-11-10 22:20:51,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:51,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:51,715 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:51,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:51,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395281076] [2024-11-10 22:20:51,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395281076] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:51,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242463317] [2024-11-10 22:20:51,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:51,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:51,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:51,719 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:20:51,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:20:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:51,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:20:51,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:51,992 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:51,993 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:20:51,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242463317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:51,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:20:51,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 22:20:51,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900563194] [2024-11-10 22:20:51,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:51,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:20:51,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:51,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:20:51,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:20:52,007 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 183 [2024-11-10 22:20:52,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 152 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 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) [2024-11-10 22:20:52,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:52,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 183 [2024-11-10 22:20:52,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:57,361 INFO L124 PetriNetUnfolderBase]: 32816/62569 cut-off events. [2024-11-10 22:20:57,361 INFO L125 PetriNetUnfolderBase]: For 1656/1656 co-relation queries the response was YES. [2024-11-10 22:20:57,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113770 conditions, 62569 events. 32816/62569 cut-off events. For 1656/1656 co-relation queries the response was YES. Maximal size of possible extension queue 1463. Compared 623583 event pairs, 1926 based on Foata normal form. 484/58516 useless extension candidates. Maximal degree in co-relation 26149. Up to 40687 conditions per place. [2024-11-10 22:20:57,673 INFO L140 encePairwiseOnDemand]: 178/183 looper letters, 204 selfloop transitions, 6 changer transitions 0/278 dead transitions. [2024-11-10 22:20:57,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 278 transitions, 1010 flow [2024-11-10 22:20:57,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:20:57,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:20:57,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 619 transitions. [2024-11-10 22:20:57,676 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.563752276867031 [2024-11-10 22:20:57,677 INFO L175 Difference]: Start difference. First operand has 154 places, 152 transitions, 340 flow. Second operand 6 states and 619 transitions. [2024-11-10 22:20:57,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 278 transitions, 1010 flow [2024-11-10 22:20:57,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 278 transitions, 1008 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:20:57,684 INFO L231 Difference]: Finished difference. Result has 157 places, 151 transitions, 346 flow [2024-11-10 22:20:57,685 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=346, PETRI_PLACES=157, PETRI_TRANSITIONS=151} [2024-11-10 22:20:57,685 INFO L277 CegarLoopForPetriNet]: 149 programPoint places, 8 predicate places. [2024-11-10 22:20:57,686 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 151 transitions, 346 flow [2024-11-10 22:20:57,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 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) [2024-11-10 22:20:57,686 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:57,686 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-10 22:20:57,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 22:20:57,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:57,888 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-10 22:20:57,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:57,889 INFO L85 PathProgramCache]: Analyzing trace with hash 2129031584, now seen corresponding path program 1 times [2024-11-10 22:20:57,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:57,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612428602] [2024-11-10 22:20:57,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:57,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:57,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:57,976 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:20:57,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:57,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612428602] [2024-11-10 22:20:57,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612428602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:57,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:57,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:20:57,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868583049] [2024-11-10 22:20:57,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:57,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:20:57,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:57,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:20:57,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:20:57,987 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 183 [2024-11-10 22:20:57,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 151 transitions, 346 flow. Second operand has 4 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 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) [2024-11-10 22:20:57,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:57,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 183 [2024-11-10 22:20:57,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:21:02,771 INFO L124 PetriNetUnfolderBase]: 31681/65661 cut-off events. [2024-11-10 22:21:02,771 INFO L125 PetriNetUnfolderBase]: For 4428/4428 co-relation queries the response was YES. [2024-11-10 22:21:02,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116429 conditions, 65661 events. 31681/65661 cut-off events. For 4428/4428 co-relation queries the response was YES. Maximal size of possible extension queue 1549. Compared 694559 event pairs, 7474 based on Foata normal form. 484/61263 useless extension candidates. Maximal degree in co-relation 79887. Up to 43679 conditions per place. [2024-11-10 22:21:03,102 INFO L140 encePairwiseOnDemand]: 178/183 looper letters, 161 selfloop transitions, 6 changer transitions 0/235 dead transitions. [2024-11-10 22:21:03,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 235 transitions, 846 flow [2024-11-10 22:21:03,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:21:03,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:21:03,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 438 transitions. [2024-11-10 22:21:03,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5983606557377049 [2024-11-10 22:21:03,104 INFO L175 Difference]: Start difference. First operand has 157 places, 151 transitions, 346 flow. Second operand 4 states and 438 transitions. [2024-11-10 22:21:03,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 235 transitions, 846 flow [2024-11-10 22:21:03,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 235 transitions, 836 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-10 22:21:03,125 INFO L231 Difference]: Finished difference. Result has 156 places, 151 transitions, 352 flow [2024-11-10 22:21:03,125 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=352, PETRI_PLACES=156, PETRI_TRANSITIONS=151} [2024-11-10 22:21:03,126 INFO L277 CegarLoopForPetriNet]: 149 programPoint places, 7 predicate places. [2024-11-10 22:21:03,127 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 151 transitions, 352 flow [2024-11-10 22:21:03,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 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) [2024-11-10 22:21:03,127 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:21:03,128 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1] [2024-11-10 22:21:03,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:21:03,128 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-10 22:21:03,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:21:03,128 INFO L85 PathProgramCache]: Analyzing trace with hash -2096241030, now seen corresponding path program 1 times [2024-11-10 22:21:03,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:21:03,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533408376] [2024-11-10 22:21:03,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:21:03,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:21:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:21:03,163 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:21:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:21:03,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:21:03,195 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 22:21:03,195 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-10 22:21:03,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2024-11-10 22:21:03,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2024-11-10 22:21:03,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2024-11-10 22:21:03,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2024-11-10 22:21:03,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2024-11-10 22:21:03,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2024-11-10 22:21:03,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2024-11-10 22:21:03,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2024-11-10 22:21:03,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2024-11-10 22:21:03,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2024-11-10 22:21:03,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2024-11-10 22:21:03,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2024-11-10 22:21:03,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2024-11-10 22:21:03,200 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2024-11-10 22:21:03,201 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2024-11-10 22:21:03,201 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2024-11-10 22:21:03,201 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2024-11-10 22:21:03,201 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2024-11-10 22:21:03,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2024-11-10 22:21:03,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2024-11-10 22:21:03,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 22:21:03,203 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-10 22:21:03,203 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 22:21:03,204 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-10 22:21:03,260 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 22:21:03,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 236 transitions, 499 flow [2024-11-10 22:21:03,314 INFO L124 PetriNetUnfolderBase]: 105/500 cut-off events. [2024-11-10 22:21:03,315 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-10 22:21:03,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 500 events. 105/500 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2433 event pairs, 1 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 350. Up to 16 conditions per place. [2024-11-10 22:21:03,320 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 236 transitions, 499 flow [2024-11-10 22:21:03,327 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 192 places, 236 transitions, 499 flow [2024-11-10 22:21:03,328 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:21:03,329 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;@7b788428, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:21:03,329 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-10 22:21:03,336 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:21:03,336 INFO L124 PetriNetUnfolderBase]: 1/12 cut-off events. [2024-11-10 22:21:03,337 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:21:03,337 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:21:03,337 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 22:21:03,337 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-10 22:21:03,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:21:03,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1264901314, now seen corresponding path program 1 times [2024-11-10 22:21:03,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:21:03,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531727910] [2024-11-10 22:21:03,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:21:03,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:21:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:21:03,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:21:03,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:21:03,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531727910] [2024-11-10 22:21:03,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531727910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:21:03,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:21:03,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:21:03,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695702590] [2024-11-10 22:21:03,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:21:03,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:21:03,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:21:03,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:21:03,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:21:03,419 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 236 [2024-11-10 22:21:03,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 236 transitions, 499 flow. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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) [2024-11-10 22:21:03,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:21:03,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 236 [2024-11-10 22:21:03,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand