./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/rfi000_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/rfi000_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 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd --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 05:22:28,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:22:28,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:22:28,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:22:28,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:22:28,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:22:28,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:22:28,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:22:28,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:22:28,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:22:28,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:22:28,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:22:28,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:22:28,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:22:28,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:22:28,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:22:28,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:22:28,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:22:28,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:22:28,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:22:28,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:22:28,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:22:28,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:22:28,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:22:28,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:22:28,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:22:28,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:22:28,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:22:28,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:22:28,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:22:28,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:22:28,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:22:28,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:22:28,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:22:28,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:22:28,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:22:28,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:22:28,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:22:28,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:22:28,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:22:28,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:22:28,258 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:22:28,296 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:22:28,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:22:28,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:22:28,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:22:28,299 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:22:28,299 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:22:28,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:22:28,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:22:28,300 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:22:28,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:22:28,301 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:22:28,301 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:22:28,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:22:28,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:22:28,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:22:28,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:22:28,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:22:28,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:22:28,302 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:22:28,303 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:22:28,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:22:28,303 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:22:28,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:22:28,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:22:28,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:22:28,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:22:28,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:22:28,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:22:28,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:22:28,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:22:28,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:22:28,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:22:28,305 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:22:28,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:22:28,306 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:22:28,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:22:28,306 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:22:28,306 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:22:28,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:22:28,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:22:28,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:22:28,651 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:22:28,651 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:22:28,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2023-09-01 05:22:29,821 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:22:30,063 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:22:30,063 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2023-09-01 05:22:30,074 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/584893188/360977fa792a40d88bdc66f8ca9378cd/FLAG37f470582 [2023-09-01 05:22:30,087 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/584893188/360977fa792a40d88bdc66f8ca9378cd [2023-09-01 05:22:30,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:22:30,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:22:30,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:22:30,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:22:30,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:22:30,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:22:30" (1/1) ... [2023-09-01 05:22:30,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74500cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:30, skipping insertion in model container [2023-09-01 05:22:30,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:22:30" (1/1) ... [2023-09-01 05:22:30,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:22:30,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:22:30,290 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/rfi000_tso.i[944,957] [2023-09-01 05:22:30,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:22:30,563 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:22:30,575 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/rfi000_tso.i[944,957] [2023-09-01 05:22:30,649 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:22:30,680 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:22:30,680 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:22:30,686 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:22:30,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:30 WrapperNode [2023-09-01 05:22:30,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:22:30,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:22:30,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:22:30,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:22:30,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:30" (1/1) ... [2023-09-01 05:22:30,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:30" (1/1) ... [2023-09-01 05:22:30,763 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 172 [2023-09-01 05:22:30,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:22:30,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:22:30,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:22:30,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:22:30,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:30" (1/1) ... [2023-09-01 05:22:30,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:30" (1/1) ... [2023-09-01 05:22:30,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:30" (1/1) ... [2023-09-01 05:22:30,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:30" (1/1) ... [2023-09-01 05:22:30,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:30" (1/1) ... [2023-09-01 05:22:30,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:30" (1/1) ... [2023-09-01 05:22:30,798 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:30" (1/1) ... [2023-09-01 05:22:30,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:30" (1/1) ... [2023-09-01 05:22:30,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:22:30,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:22:30,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:22:30,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:22:30,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:30" (1/1) ... [2023-09-01 05:22:30,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:22:30,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:22:30,850 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 05:22:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:22:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:22:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:22:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:22:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:22:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:22:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:22:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:22:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:22:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:22:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:22:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:22:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:22:30,894 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 05:22:30,881 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 05:22:31,051 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:22:31,053 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:22:31,372 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:22:31,587 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:22:31,588 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:22:31,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:22:31 BoogieIcfgContainer [2023-09-01 05:22:31,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:22:31,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:22:31,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:22:31,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:22:31,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:22:30" (1/3) ... [2023-09-01 05:22:31,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74bd120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:22:31, skipping insertion in model container [2023-09-01 05:22:31,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:30" (2/3) ... [2023-09-01 05:22:31,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74bd120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:22:31, skipping insertion in model container [2023-09-01 05:22:31,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:22:31" (3/3) ... [2023-09-01 05:22:31,598 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2023-09-01 05:22:31,606 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:22:31,614 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:22:31,615 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-09-01 05:22:31,615 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:22:31,677 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:22:31,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 92 transitions, 194 flow [2023-09-01 05:22:31,769 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2023-09-01 05:22:31,769 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:22:31,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-09-01 05:22:31,774 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 92 transitions, 194 flow [2023-09-01 05:22:31,779 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 90 transitions, 186 flow [2023-09-01 05:22:31,783 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:22:31,804 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 90 transitions, 186 flow [2023-09-01 05:22:31,811 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 90 transitions, 186 flow [2023-09-01 05:22:31,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions, 186 flow [2023-09-01 05:22:31,847 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2023-09-01 05:22:31,847 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:22:31,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-09-01 05:22:31,850 INFO L119 LiptonReduction]: Number of co-enabled transitions 1364 [2023-09-01 05:22:34,811 INFO L134 LiptonReduction]: Checked pairs total: 5319 [2023-09-01 05:22:34,811 INFO L136 LiptonReduction]: Total number of compositions: 76 [2023-09-01 05:22:34,822 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:22:34,827 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;@5e70658, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:22:34,827 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-09-01 05:22:34,832 INFO L130 PetriNetUnfolder]: 1/11 cut-off events. [2023-09-01 05:22:34,832 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:22:34,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:22:34,833 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 05:22:34,833 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 05:22:34,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:22:34,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1568980321, now seen corresponding path program 1 times [2023-09-01 05:22:34,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:22:34,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402509191] [2023-09-01 05:22:34,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:22:34,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:22:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:22:35,185 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 05:22:35,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:22:35,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402509191] [2023-09-01 05:22:35,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402509191] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:22:35,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:22:35,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:22:35,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049989529] [2023-09-01 05:22:35,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:22:35,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:22:35,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:22:35,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:22:35,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:22:35,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 168 [2023-09-01 05:22:35,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 05:22:35,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:22:35,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 168 [2023-09-01 05:22:35,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:22:35,452 INFO L130 PetriNetUnfolder]: 371/624 cut-off events. [2023-09-01 05:22:35,452 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-09-01 05:22:35,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1262 conditions, 624 events. 371/624 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2490 event pairs, 371 based on Foata normal form. 40/543 useless extension candidates. Maximal degree in co-relation 1252. Up to 622 conditions per place. [2023-09-01 05:22:35,462 INFO L137 encePairwiseOnDemand]: 164/168 looper letters, 19 selfloop transitions, 1 changer transitions 0/21 dead transitions. [2023-09-01 05:22:35,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 21 transitions, 88 flow [2023-09-01 05:22:35,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:22:35,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:22:35,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 242 transitions. [2023-09-01 05:22:35,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4801587301587302 [2023-09-01 05:22:35,481 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 242 transitions. [2023-09-01 05:22:35,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 242 transitions. [2023-09-01 05:22:35,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:22:35,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 242 transitions. [2023-09-01 05:22:35,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 05:22:35,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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 05:22:35,495 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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 05:22:35,497 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 54 flow. Second operand 3 states and 242 transitions. [2023-09-01 05:22:35,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 21 transitions, 88 flow [2023-09-01 05:22:35,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 21 transitions, 86 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:22:35,503 INFO L231 Difference]: Finished difference. Result has 28 places, 21 transitions, 48 flow [2023-09-01 05:22:35,505 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=28, PETRI_TRANSITIONS=21} [2023-09-01 05:22:35,508 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2023-09-01 05:22:35,509 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 21 transitions, 48 flow [2023-09-01 05:22:35,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 05:22:35,511 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:22:35,511 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 05:22:35,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:22:35,513 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 05:22:35,514 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:22:35,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1568980322, now seen corresponding path program 1 times [2023-09-01 05:22:35,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:22:35,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560700439] [2023-09-01 05:22:35,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:22:35,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:22:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:22:35,570 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 05:22:35,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:22:35,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560700439] [2023-09-01 05:22:35,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560700439] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:22:35,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:22:35,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:22:35,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022891589] [2023-09-01 05:22:35,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:22:35,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:22:35,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:22:35,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:22:35,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:22:35,583 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 168 [2023-09-01 05:22:35,583 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 05:22:35,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:22:35,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 168 [2023-09-01 05:22:35,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:22:35,688 INFO L130 PetriNetUnfolder]: 115/234 cut-off events. [2023-09-01 05:22:35,688 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:22:35,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 234 events. 115/234 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 809 event pairs, 53 based on Foata normal form. 0/209 useless extension candidates. Maximal degree in co-relation 474. Up to 149 conditions per place. [2023-09-01 05:22:35,690 INFO L137 encePairwiseOnDemand]: 162/168 looper letters, 27 selfloop transitions, 3 changer transitions 2/33 dead transitions. [2023-09-01 05:22:35,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 33 transitions, 138 flow [2023-09-01 05:22:35,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:22:35,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:22:35,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2023-09-01 05:22:35,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.503968253968254 [2023-09-01 05:22:35,696 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions. [2023-09-01 05:22:35,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions. [2023-09-01 05:22:35,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:22:35,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions. [2023-09-01 05:22:35,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 05:22:35,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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 05:22:35,700 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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 05:22:35,700 INFO L175 Difference]: Start difference. First operand has 28 places, 21 transitions, 48 flow. Second operand 3 states and 254 transitions. [2023-09-01 05:22:35,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 33 transitions, 138 flow [2023-09-01 05:22:35,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 33 transitions, 137 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:22:35,702 INFO L231 Difference]: Finished difference. Result has 30 places, 21 transitions, 62 flow [2023-09-01 05:22:35,702 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=30, PETRI_TRANSITIONS=21} [2023-09-01 05:22:35,703 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 0 predicate places. [2023-09-01 05:22:35,703 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 21 transitions, 62 flow [2023-09-01 05:22:35,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 05:22:35,703 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:22:35,703 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:22:35,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:22:35,704 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 05:22:35,704 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:22:35,704 INFO L85 PathProgramCache]: Analyzing trace with hash 319021686, now seen corresponding path program 1 times [2023-09-01 05:22:35,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:22:35,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992401509] [2023-09-01 05:22:35,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:22:35,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:22:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:22:35,864 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 05:22:35,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:22:35,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992401509] [2023-09-01 05:22:35,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992401509] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:22:35,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:22:35,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:22:35,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179051444] [2023-09-01 05:22:35,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:22:35,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:22:35,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:22:35,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:22:35,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:22:35,873 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 168 [2023-09-01 05:22:35,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 21 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 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 05:22:35,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:22:35,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 168 [2023-09-01 05:22:35,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:22:35,937 INFO L130 PetriNetUnfolder]: 66/131 cut-off events. [2023-09-01 05:22:35,937 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-09-01 05:22:35,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 131 events. 66/131 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 398 event pairs, 41 based on Foata normal form. 13/143 useless extension candidates. Maximal degree in co-relation 308. Up to 84 conditions per place. [2023-09-01 05:22:35,938 INFO L137 encePairwiseOnDemand]: 162/168 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2023-09-01 05:22:35,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 25 transitions, 114 flow [2023-09-01 05:22:35,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:22:35,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:22:35,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions. [2023-09-01 05:22:35,940 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47470238095238093 [2023-09-01 05:22:35,940 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 319 transitions. [2023-09-01 05:22:35,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 319 transitions. [2023-09-01 05:22:35,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:22:35,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 319 transitions. [2023-09-01 05:22:35,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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 05:22:35,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 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 05:22:35,943 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 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 05:22:35,943 INFO L175 Difference]: Start difference. First operand has 30 places, 21 transitions, 62 flow. Second operand 4 states and 319 transitions. [2023-09-01 05:22:35,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 25 transitions, 114 flow [2023-09-01 05:22:35,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 25 transitions, 108 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:22:35,945 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2023-09-01 05:22:35,945 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2023-09-01 05:22:35,945 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -5 predicate places. [2023-09-01 05:22:35,946 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2023-09-01 05:22:35,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 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 05:22:35,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-09-01 05:22:35,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-09-01 05:22:35,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-09-01 05:22:35,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-09-01 05:22:35,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-09-01 05:22:35,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-09-01 05:22:35,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-09-01 05:22:35,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-09-01 05:22:35,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-09-01 05:22:35,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-09-01 05:22:35,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:22:35,950 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-09-01 05:22:35,955 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:22:35,955 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:22:35,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:22:35 BasicIcfg [2023-09-01 05:22:35,958 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:22:35,959 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:22:35,959 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:22:35,959 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:22:35,959 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:22:31" (3/4) ... [2023-09-01 05:22:35,961 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:22:35,965 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:22:35,965 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:22:35,969 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-09-01 05:22:35,969 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-09-01 05:22:35,970 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 05:22:35,970 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:22:36,018 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:22:36,018 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:22:36,019 INFO L158 Benchmark]: Toolchain (without parser) took 5928.41ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 52.3MB in the beginning and 32.8MB in the end (delta: 19.5MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. [2023-09-01 05:22:36,019 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 60.8MB. Free memory was 38.5MB in the beginning and 38.5MB in the end (delta: 58.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:22:36,020 INFO L158 Benchmark]: CACSL2BoogieTranslator took 594.86ms. Allocated memory is still 73.4MB. Free memory was 52.1MB in the beginning and 45.1MB in the end (delta: 7.0MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2023-09-01 05:22:36,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.61ms. Allocated memory is still 73.4MB. Free memory was 45.1MB in the beginning and 41.8MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:22:36,021 INFO L158 Benchmark]: Boogie Preprocessor took 53.22ms. Allocated memory is still 73.4MB. Free memory was 41.8MB in the beginning and 39.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:22:36,021 INFO L158 Benchmark]: RCFGBuilder took 771.44ms. Allocated memory is still 73.4MB. Free memory was 39.7MB in the beginning and 32.6MB in the end (delta: 7.1MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2023-09-01 05:22:36,022 INFO L158 Benchmark]: TraceAbstraction took 4365.83ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 31.8MB in the beginning and 35.8MB in the end (delta: -4.1MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2023-09-01 05:22:36,024 INFO L158 Benchmark]: Witness Printer took 59.48ms. Allocated memory is still 107.0MB. Free memory was 35.8MB in the beginning and 32.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:22:36,025 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 60.8MB. Free memory was 38.5MB in the beginning and 38.5MB in the end (delta: 58.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 594.86ms. Allocated memory is still 73.4MB. Free memory was 52.1MB in the beginning and 45.1MB in the end (delta: 7.0MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.61ms. Allocated memory is still 73.4MB. Free memory was 45.1MB in the beginning and 41.8MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.22ms. Allocated memory is still 73.4MB. Free memory was 41.8MB in the beginning and 39.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 771.44ms. Allocated memory is still 73.4MB. Free memory was 39.7MB in the beginning and 32.6MB in the end (delta: 7.1MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4365.83ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 31.8MB in the beginning and 35.8MB in the end (delta: -4.1MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * Witness Printer took 59.48ms. Allocated memory is still 107.0MB. Free memory was 35.8MB in the beginning and 32.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 95 PlacesBefore, 30 PlacesAfterwards, 90 TransitionsBefore, 24 TransitionsAfterwards, 1364 CoEnabledTransitionPairs, 7 FixpointIterations, 35 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 5319 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2021, independent: 1783, independent conditional: 0, independent unconditional: 1783, dependent: 238, dependent conditional: 0, dependent unconditional: 238, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 742, independent: 707, independent conditional: 0, independent unconditional: 707, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2021, independent: 1076, independent conditional: 0, independent unconditional: 1076, dependent: 203, dependent conditional: 0, dependent unconditional: 203, unknown: 742, unknown conditional: 0, unknown unconditional: 742] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 751]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 751]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: 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, 115 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: 4.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 95 IncrementalHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 3 mSDtfsCounter, 95 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=62occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 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 05:22:36,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE