./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/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 ../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.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.graphml --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 ef851e22a0a98929f1b90876fcac5ec793e10efa4691f239ca948c8dc39b94fd --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 05:26:16,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:26:16,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:26:16,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:26:16,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:26:16,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:26:16,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:26:16,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:26:16,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:26:16,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:26:16,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:26:16,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:26:16,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:26:16,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:26:16,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:26:16,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:26:16,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:26:16,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:26:16,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:26:16,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:26:16,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:26:16,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:26:16,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:26:16,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:26:16,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:26:16,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:26:16,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:26:16,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:26:16,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:26:16,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:26:16,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:26:16,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:26:16,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:26:16,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:26:16,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:26:16,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:26:16,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:26:16,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:26:16,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:26:16,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:26:16,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:26:16,847 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:26:16,872 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:26:16,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:26:16,874 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:26:16,874 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:26:16,875 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:26:16,875 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:26:16,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:26:16,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:26:16,876 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:26:16,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:26:16,877 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:26:16,878 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:26:16,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:26:16,878 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:26:16,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:26:16,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:26:16,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:26:16,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:26:16,879 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:26:16,879 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:26:16,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:26:16,880 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:26:16,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:26:16,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:26:16,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:26:16,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:26:16,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:26:16,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:26:16,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:26:16,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:26:16,881 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:26:16,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:26:16,882 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:26:16,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:26:16,882 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:26:16,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:26:16,883 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:26:16,883 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef851e22a0a98929f1b90876fcac5ec793e10efa4691f239ca948c8dc39b94fd Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:26:17,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:26:17,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:26:17,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:26:17,223 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:26:17,223 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:26:17,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.i [2023-09-01 05:26:18,423 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:26:18,715 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:26:18,716 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.i [2023-09-01 05:26:18,725 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fafc02bd/c8f746d82323426ca2102e05c9907531/FLAG518c044b6 [2023-09-01 05:26:18,741 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fafc02bd/c8f746d82323426ca2102e05c9907531 [2023-09-01 05:26:18,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:26:18,744 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:26:18,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:26:18,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:26:18,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:26:18,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:26:18" (1/1) ... [2023-09-01 05:26:18,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a42d10e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:18, skipping insertion in model container [2023-09-01 05:26:18,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:26:18" (1/1) ... [2023-09-01 05:26:18,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:26:18,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:26:18,945 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.i[945,958] [2023-09-01 05:26:19,107 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:26:19,117 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:26:19,127 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.i[945,958] [2023-09-01 05:26:19,167 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:26:19,201 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:26:19,201 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:26:19,207 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:26:19,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:19 WrapperNode [2023-09-01 05:26:19,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:26:19,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:26:19,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:26:19,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:26:19,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:19" (1/1) ... [2023-09-01 05:26:19,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:19" (1/1) ... [2023-09-01 05:26:19,258 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2023-09-01 05:26:19,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:26:19,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:26:19,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:26:19,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:26:19,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:19" (1/1) ... [2023-09-01 05:26:19,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:19" (1/1) ... [2023-09-01 05:26:19,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:19" (1/1) ... [2023-09-01 05:26:19,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:19" (1/1) ... [2023-09-01 05:26:19,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:19" (1/1) ... [2023-09-01 05:26:19,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:19" (1/1) ... [2023-09-01 05:26:19,290 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:19" (1/1) ... [2023-09-01 05:26:19,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:19" (1/1) ... [2023-09-01 05:26:19,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:26:19,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:26:19,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:26:19,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:26:19,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:19" (1/1) ... [2023-09-01 05:26:19,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:26:19,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:26:19,426 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 05:26:19,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 05:26:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:26:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:26:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:26:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:26:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:26:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:26:19,458 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:26:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:26:19,458 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:26:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:26:19,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:26:19,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:26:19,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:26:19,460 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 05:26:19,649 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:26:19,652 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:26:19,816 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:26:19,836 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:26:19,836 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:26:19,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:26:19 BoogieIcfgContainer [2023-09-01 05:26:19,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:26:19,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:26:19,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:26:19,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:26:19,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:26:18" (1/3) ... [2023-09-01 05:26:19,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49cac92d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:26:19, skipping insertion in model container [2023-09-01 05:26:19,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:19" (2/3) ... [2023-09-01 05:26:19,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49cac92d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:26:19, skipping insertion in model container [2023-09-01 05:26:19,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:26:19" (3/3) ... [2023-09-01 05:26:19,850 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_tso.i [2023-09-01 05:26:19,857 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:26:19,864 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:26:19,864 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-09-01 05:26:19,864 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:26:19,926 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:26:19,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 69 transitions, 148 flow [2023-09-01 05:26:20,020 INFO L130 PetriNetUnfolder]: 2/67 cut-off events. [2023-09-01 05:26:20,021 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:26:20,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-09-01 05:26:20,025 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 69 transitions, 148 flow [2023-09-01 05:26:20,030 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 67 transitions, 140 flow [2023-09-01 05:26:20,033 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:26:20,049 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 67 transitions, 140 flow [2023-09-01 05:26:20,052 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 67 transitions, 140 flow [2023-09-01 05:26:20,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 67 transitions, 140 flow [2023-09-01 05:26:20,083 INFO L130 PetriNetUnfolder]: 2/67 cut-off events. [2023-09-01 05:26:20,083 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:26:20,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-09-01 05:26:20,086 INFO L119 LiptonReduction]: Number of co-enabled transitions 1040 [2023-09-01 05:26:22,170 INFO L134 LiptonReduction]: Checked pairs total: 2816 [2023-09-01 05:26:22,170 INFO L136 LiptonReduction]: Total number of compositions: 61 [2023-09-01 05:26:22,181 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:26:22,187 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@3da9c086, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:26:22,188 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-09-01 05:26:22,191 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-09-01 05:26:22,191 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:26:22,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:26:22,192 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:26:22,192 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 05:26:22,196 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:26:22,197 INFO L85 PathProgramCache]: Analyzing trace with hash 251928324, now seen corresponding path program 1 times [2023-09-01 05:26:22,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:26:22,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153198608] [2023-09-01 05:26:22,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:26:22,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:26:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:26:22,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:26:22,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:26:22,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153198608] [2023-09-01 05:26:22,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153198608] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:26:22,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:26:22,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:26:22,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066464471] [2023-09-01 05:26:22,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:26:22,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:26:22,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:26:22,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:26:22,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:26:22,421 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 130 [2023-09-01 05:26:22,423 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2023-09-01 05:26:22,424 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:26:22,424 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 130 [2023-09-01 05:26:22,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:26:22,465 INFO L130 PetriNetUnfolder]: 63/126 cut-off events. [2023-09-01 05:26:22,465 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-09-01 05:26:22,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 126 events. 63/126 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 504 event pairs, 63 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 250. Up to 120 conditions per place. [2023-09-01 05:26:22,468 INFO L137 encePairwiseOnDemand]: 126/130 looper letters, 11 selfloop transitions, 1 changer transitions 0/14 dead transitions. [2023-09-01 05:26:22,468 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 14 transitions, 58 flow [2023-09-01 05:26:22,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:26:22,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:26:22,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 186 transitions. [2023-09-01 05:26:22,478 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47692307692307695 [2023-09-01 05:26:22,479 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 186 transitions. [2023-09-01 05:26:22,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 186 transitions. [2023-09-01 05:26:22,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:26:22,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 186 transitions. [2023-09-01 05:26:22,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2023-09-01 05:26:22,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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) [2023-09-01 05:26:22,488 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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) [2023-09-01 05:26:22,490 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 40 flow. Second operand 3 states and 186 transitions. [2023-09-01 05:26:22,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 14 transitions, 58 flow [2023-09-01 05:26:22,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 14 transitions, 56 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:26:22,493 INFO L231 Difference]: Finished difference. Result has 21 places, 14 transitions, 34 flow [2023-09-01 05:26:22,495 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=34, PETRI_PLACES=21, PETRI_TRANSITIONS=14} [2023-09-01 05:26:22,498 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -2 predicate places. [2023-09-01 05:26:22,498 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 14 transitions, 34 flow [2023-09-01 05:26:22,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2023-09-01 05:26:22,499 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:26:22,499 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:26:22,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:26:22,499 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 05:26:22,500 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:26:22,500 INFO L85 PathProgramCache]: Analyzing trace with hash 251928325, now seen corresponding path program 1 times [2023-09-01 05:26:22,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:26:22,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325025077] [2023-09-01 05:26:22,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:26:22,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:26:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:26:22,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:26:22,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:26:22,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325025077] [2023-09-01 05:26:22,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325025077] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:26:22,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:26:22,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:26:22,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568087181] [2023-09-01 05:26:22,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:26:22,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:26:22,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:26:22,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:26:22,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:26:22,556 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 130 [2023-09-01 05:26:22,556 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 14 transitions, 34 flow. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2023-09-01 05:26:22,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:26:22,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 130 [2023-09-01 05:26:22,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:26:22,596 INFO L130 PetriNetUnfolder]: 36/80 cut-off events. [2023-09-01 05:26:22,598 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:26:22,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 80 events. 36/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 222 event pairs, 11 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 162. Up to 49 conditions per place. [2023-09-01 05:26:22,601 INFO L137 encePairwiseOnDemand]: 125/130 looper letters, 15 selfloop transitions, 3 changer transitions 2/22 dead transitions. [2023-09-01 05:26:22,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 22 transitions, 92 flow [2023-09-01 05:26:22,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:26:22,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:26:22,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 193 transitions. [2023-09-01 05:26:22,606 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4948717948717949 [2023-09-01 05:26:22,606 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 193 transitions. [2023-09-01 05:26:22,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 193 transitions. [2023-09-01 05:26:22,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:26:22,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 193 transitions. [2023-09-01 05:26:22,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2023-09-01 05:26:22,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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) [2023-09-01 05:26:22,613 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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) [2023-09-01 05:26:22,614 INFO L175 Difference]: Start difference. First operand has 21 places, 14 transitions, 34 flow. Second operand 3 states and 193 transitions. [2023-09-01 05:26:22,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 22 transitions, 92 flow [2023-09-01 05:26:22,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 22 transitions, 91 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:26:22,615 INFO L231 Difference]: Finished difference. Result has 23 places, 14 transitions, 46 flow [2023-09-01 05:26:22,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=23, PETRI_TRANSITIONS=14} [2023-09-01 05:26:22,616 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 0 predicate places. [2023-09-01 05:26:22,616 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 14 transitions, 46 flow [2023-09-01 05:26:22,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2023-09-01 05:26:22,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:26:22,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:26:22,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:26:22,617 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 05:26:22,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:26:22,620 INFO L85 PathProgramCache]: Analyzing trace with hash 843143137, now seen corresponding path program 1 times [2023-09-01 05:26:22,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:26:22,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389266551] [2023-09-01 05:26:22,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:26:22,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:26:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:26:22,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:26:22,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:26:22,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389266551] [2023-09-01 05:26:22,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389266551] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:26:22,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:26:22,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:26:22,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178443008] [2023-09-01 05:26:22,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:26:22,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:26:22,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:26:22,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:26:22,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:26:22,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 130 [2023-09-01 05:26:22,729 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 14 transitions, 46 flow. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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) [2023-09-01 05:26:22,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:26:22,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 130 [2023-09-01 05:26:22,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:26:22,791 INFO L130 PetriNetUnfolder]: 27/62 cut-off events. [2023-09-01 05:26:22,792 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-09-01 05:26:22,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 62 events. 27/62 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 167 event pairs, 11 based on Foata normal form. 6/65 useless extension candidates. Maximal degree in co-relation 154. Up to 30 conditions per place. [2023-09-01 05:26:22,792 INFO L137 encePairwiseOnDemand]: 125/130 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-09-01 05:26:22,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 18 transitions, 84 flow [2023-09-01 05:26:22,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:26:22,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:26:22,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 246 transitions. [2023-09-01 05:26:22,795 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47307692307692306 [2023-09-01 05:26:22,795 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 246 transitions. [2023-09-01 05:26:22,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 246 transitions. [2023-09-01 05:26:22,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:26:22,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 246 transitions. [2023-09-01 05:26:22,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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) [2023-09-01 05:26:22,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 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) [2023-09-01 05:26:22,798 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 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) [2023-09-01 05:26:22,799 INFO L175 Difference]: Start difference. First operand has 23 places, 14 transitions, 46 flow. Second operand 4 states and 246 transitions. [2023-09-01 05:26:22,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 18 transitions, 84 flow [2023-09-01 05:26:22,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:26:22,800 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2023-09-01 05:26:22,800 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2023-09-01 05:26:22,801 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -1 predicate places. [2023-09-01 05:26:22,804 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2023-09-01 05:26:22,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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) [2023-09-01 05:26:22,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-09-01 05:26:22,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-09-01 05:26:22,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-09-01 05:26:22,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-09-01 05:26:22,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-09-01 05:26:22,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-09-01 05:26:22,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-09-01 05:26:22,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-09-01 05:26:22,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-09-01 05:26:22,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-09-01 05:26:22,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:26:22,810 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-09-01 05:26:22,819 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:26:22,819 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:26:22,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:26:22 BasicIcfg [2023-09-01 05:26:22,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:26:22,825 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:26:22,825 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:26:22,825 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:26:22,826 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:26:19" (3/4) ... [2023-09-01 05:26:22,828 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:26:22,832 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:26:22,832 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:26:22,836 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-09-01 05:26:22,837 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 05:26:22,837 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 05:26:22,840 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:26:22,876 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:26:22,877 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:26:22,878 INFO L158 Benchmark]: Toolchain (without parser) took 4134.07ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 80.3MB in the beginning and 91.4MB in the end (delta: -11.1MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2023-09-01 05:26:22,878 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 69.2MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:26:22,878 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.00ms. Allocated memory is still 102.8MB. Free memory was 80.0MB in the beginning and 60.2MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-09-01 05:26:22,880 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.73ms. Allocated memory is still 102.8MB. Free memory was 60.2MB in the beginning and 58.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:26:22,881 INFO L158 Benchmark]: Boogie Preprocessor took 31.67ms. Allocated memory is still 102.8MB. Free memory was 58.5MB in the beginning and 57.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:26:22,882 INFO L158 Benchmark]: RCFGBuilder took 540.16ms. Allocated memory is still 102.8MB. Free memory was 56.7MB in the beginning and 73.6MB in the end (delta: -16.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-09-01 05:26:22,882 INFO L158 Benchmark]: TraceAbstraction took 2980.24ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 73.2MB in the beginning and 93.6MB in the end (delta: -20.4MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2023-09-01 05:26:22,885 INFO L158 Benchmark]: Witness Printer took 52.60ms. Allocated memory is still 123.7MB. Free memory was 93.6MB in the beginning and 91.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:26:22,887 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 69.2MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 464.00ms. Allocated memory is still 102.8MB. Free memory was 80.0MB in the beginning and 60.2MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.73ms. Allocated memory is still 102.8MB. Free memory was 60.2MB in the beginning and 58.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.67ms. Allocated memory is still 102.8MB. Free memory was 58.5MB in the beginning and 57.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 540.16ms. Allocated memory is still 102.8MB. Free memory was 56.7MB in the beginning and 73.6MB in the end (delta: -16.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2980.24ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 73.2MB in the beginning and 93.6MB in the end (delta: -20.4MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. * Witness Printer took 52.60ms. Allocated memory is still 123.7MB. Free memory was 93.6MB in the beginning and 91.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 72 PlacesBefore, 23 PlacesAfterwards, 67 TransitionsBefore, 17 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 61 TotalNumberOfCompositions, 2816 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1355, independent: 1227, independent conditional: 0, independent unconditional: 1227, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 586, independent: 558, independent conditional: 0, independent unconditional: 558, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1355, independent: 669, independent conditional: 0, independent unconditional: 669, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 586, unknown conditional: 0, unknown unconditional: 586] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 43, Positive conditional cache size: 0, Positive unconditional cache size: 43, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 726]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 726]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 741]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 741]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 88 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 6 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=2, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 51 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 05:26:22,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE