./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe027_rmo.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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/safe027_rmo.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 85e3ce8f111292d815206f012225ed7eff4e108dc07a389f6fa2d1590522afb0 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 08:49:33,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:49:33,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:49:33,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:49:33,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:49:33,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:49:33,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:49:33,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:49:33,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:49:33,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:49:33,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:49:33,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:49:33,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:49:33,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:49:33,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:49:33,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:49:33,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:49:33,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:49:33,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:49:33,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:49:33,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:49:33,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:49:33,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:49:33,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:49:33,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:49:33,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:49:33,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:49:33,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:49:33,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:49:33,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:49:33,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:49:33,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:49:33,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:49:33,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:49:33,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:49:33,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:49:33,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:49:33,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:49:33,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:49:33,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:49:33,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:49:33,237 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:49:33,261 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:49:33,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:49:33,262 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:49:33,263 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:49:33,263 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:49:33,263 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:49:33,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:49:33,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:49:33,264 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:49:33,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:49:33,265 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:49:33,265 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:49:33,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:49:33,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:49:33,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:49:33,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:49:33,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:49:33,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:49:33,266 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:49:33,266 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:49:33,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:49:33,267 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:49:33,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:49:33,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:49:33,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:49:33,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:49:33,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:49:33,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:49:33,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:49:33,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:49:33,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:49:33,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:49:33,268 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:49:33,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:49:33,269 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:49:33,269 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:49:33,269 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:49:33,269 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85e3ce8f111292d815206f012225ed7eff4e108dc07a389f6fa2d1590522afb0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:49:33,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:49:33,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:49:33,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:49:33,539 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:49:33,539 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:49:33,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_rmo.i [2023-08-30 08:49:34,842 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:49:35,175 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:49:35,177 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_rmo.i [2023-08-30 08:49:35,209 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/995fc46b6/abce8cee22bb4966b4e2a6269c421424/FLAG77e06bf16 [2023-08-30 08:49:35,219 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/995fc46b6/abce8cee22bb4966b4e2a6269c421424 [2023-08-30 08:49:35,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:49:35,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:49:35,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:49:35,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:49:35,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:49:35,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:49:35" (1/1) ... [2023-08-30 08:49:35,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b8fd1ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:35, skipping insertion in model container [2023-08-30 08:49:35,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:49:35" (1/1) ... [2023-08-30 08:49:35,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:49:35,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:49:35,514 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/safe027_rmo.i[988,1001] [2023-08-30 08:49:35,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:49:35,710 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:49:35,718 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/safe027_rmo.i[988,1001] [2023-08-30 08:49:35,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:49:35,800 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:49:35,800 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:49:35,804 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:49:35,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:35 WrapperNode [2023-08-30 08:49:35,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:49:35,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:49:35,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:49:35,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:49:35,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:35" (1/1) ... [2023-08-30 08:49:35,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:35" (1/1) ... [2023-08-30 08:49:35,859 INFO L138 Inliner]: procedures = 177, calls = 82, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 153 [2023-08-30 08:49:35,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:49:35,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:49:35,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:49:35,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:49:35,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:35" (1/1) ... [2023-08-30 08:49:35,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:35" (1/1) ... [2023-08-30 08:49:35,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:35" (1/1) ... [2023-08-30 08:49:35,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:35" (1/1) ... [2023-08-30 08:49:35,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:35" (1/1) ... [2023-08-30 08:49:35,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:35" (1/1) ... [2023-08-30 08:49:35,916 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:35" (1/1) ... [2023-08-30 08:49:35,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:35" (1/1) ... [2023-08-30 08:49:35,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:49:35,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:49:35,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:49:35,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:49:35,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:35" (1/1) ... [2023-08-30 08:49:35,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:49:35,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:49:35,965 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) [2023-08-30 08:49:35,997 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 [2023-08-30 08:49:36,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 08:49:36,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:49:36,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:49:36,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:49:36,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:49:36,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:49:36,016 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:49:36,016 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:49:36,016 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:49:36,017 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:49:36,017 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 08:49:36,017 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 08:49:36,017 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 08:49:36,017 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 08:49:36,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:49:36,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:49:36,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:49:36,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:49:36,018 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 08:49:36,140 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:49:36,144 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:49:36,461 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:49:36,592 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:49:36,592 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:49:36,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:49:36 BoogieIcfgContainer [2023-08-30 08:49:36,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:49:36,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:49:36,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:49:36,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:49:36,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:49:35" (1/3) ... [2023-08-30 08:49:36,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82f74fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:49:36, skipping insertion in model container [2023-08-30 08:49:36,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:49:35" (2/3) ... [2023-08-30 08:49:36,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82f74fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:49:36, skipping insertion in model container [2023-08-30 08:49:36,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:49:36" (3/3) ... [2023-08-30 08:49:36,599 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_rmo.i [2023-08-30 08:49:36,604 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:49:36,609 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:49:36,610 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 08:49:36,610 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:49:36,649 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:49:36,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 150 transitions, 320 flow [2023-08-30 08:49:36,715 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2023-08-30 08:49:36,715 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:49:36,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2023-08-30 08:49:36,720 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 150 transitions, 320 flow [2023-08-30 08:49:36,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 146 transitions, 304 flow [2023-08-30 08:49:36,725 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:49:36,730 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 146 transitions, 304 flow [2023-08-30 08:49:36,732 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 146 transitions, 304 flow [2023-08-30 08:49:36,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 146 transitions, 304 flow [2023-08-30 08:49:36,752 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2023-08-30 08:49:36,752 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:49:36,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2023-08-30 08:49:36,754 INFO L119 LiptonReduction]: Number of co-enabled transitions 3224 [2023-08-30 08:49:42,188 INFO L134 LiptonReduction]: Checked pairs total: 10791 [2023-08-30 08:49:42,189 INFO L136 LiptonReduction]: Total number of compositions: 126 [2023-08-30 08:49:42,200 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:49:42,204 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;@2d79ce80, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:49:42,205 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 08:49:42,209 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 08:49:42,209 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:49:42,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:49:42,210 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 08:49:42,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:49:42,214 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:49:42,214 INFO L85 PathProgramCache]: Analyzing trace with hash 757577615, now seen corresponding path program 1 times [2023-08-30 08:49:42,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:49:42,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555993469] [2023-08-30 08:49:42,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:49:42,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:49:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:49:42,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:49:42,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:49:42,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555993469] [2023-08-30 08:49:42,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555993469] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:49:42,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:49:42,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:49:42,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580359243] [2023-08-30 08:49:42,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:49:42,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:49:42,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:49:42,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:49:42,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:49:42,492 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 276 [2023-08-30 08:49:42,494 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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) [2023-08-30 08:49:42,494 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:49:42,494 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 276 [2023-08-30 08:49:42,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:49:43,284 INFO L130 PetriNetUnfolder]: 5759/8101 cut-off events. [2023-08-30 08:49:43,284 INFO L131 PetriNetUnfolder]: For 90/90 co-relation queries the response was YES. [2023-08-30 08:49:43,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16405 conditions, 8101 events. 5759/8101 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 43945 event pairs, 1669 based on Foata normal form. 0/5576 useless extension candidates. Maximal degree in co-relation 16393. Up to 7569 conditions per place. [2023-08-30 08:49:43,335 INFO L137 encePairwiseOnDemand]: 263/276 looper letters, 43 selfloop transitions, 5 changer transitions 0/49 dead transitions. [2023-08-30 08:49:43,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 49 transitions, 215 flow [2023-08-30 08:49:43,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:49:43,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:49:43,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 431 transitions. [2023-08-30 08:49:43,345 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5205314009661836 [2023-08-30 08:49:43,346 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 431 transitions. [2023-08-30 08:49:43,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 431 transitions. [2023-08-30 08:49:43,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:49:43,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 431 transitions. [2023-08-30 08:49:43,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 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) [2023-08-30 08:49:43,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 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) [2023-08-30 08:49:43,354 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 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) [2023-08-30 08:49:43,355 INFO L175 Difference]: Start difference. First operand has 43 places, 30 transitions, 72 flow. Second operand 3 states and 431 transitions. [2023-08-30 08:49:43,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 49 transitions, 215 flow [2023-08-30 08:49:43,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 49 transitions, 208 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 08:49:43,359 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 115 flow [2023-08-30 08:49:43,360 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=115, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2023-08-30 08:49:43,363 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2023-08-30 08:49:43,363 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 115 flow [2023-08-30 08:49:43,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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) [2023-08-30 08:49:43,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:49:43,364 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:49:43,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:49:43,364 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:49:43,365 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:49:43,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1343150538, now seen corresponding path program 1 times [2023-08-30 08:49:43,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:49:43,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573252909] [2023-08-30 08:49:43,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:49:43,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:49:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:49:43,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:49:43,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:49:43,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573252909] [2023-08-30 08:49:43,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573252909] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:49:43,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:49:43,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:49:43,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297161699] [2023-08-30 08:49:43,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:49:43,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:49:43,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:49:43,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:49:43,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:49:43,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 276 [2023-08-30 08:49:43,462 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 115 flow. Second operand has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2023-08-30 08:49:43,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:49:43,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 276 [2023-08-30 08:49:43,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:49:43,982 INFO L130 PetriNetUnfolder]: 3197/4507 cut-off events. [2023-08-30 08:49:43,983 INFO L131 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2023-08-30 08:49:43,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11360 conditions, 4507 events. 3197/4507 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 21947 event pairs, 765 based on Foata normal form. 0/3688 useless extension candidates. Maximal degree in co-relation 11349. Up to 3974 conditions per place. [2023-08-30 08:49:44,007 INFO L137 encePairwiseOnDemand]: 267/276 looper letters, 39 selfloop transitions, 5 changer transitions 0/45 dead transitions. [2023-08-30 08:49:44,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 223 flow [2023-08-30 08:49:44,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:49:44,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:49:44,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 548 transitions. [2023-08-30 08:49:44,010 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4963768115942029 [2023-08-30 08:49:44,011 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 548 transitions. [2023-08-30 08:49:44,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 548 transitions. [2023-08-30 08:49:44,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:49:44,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 548 transitions. [2023-08-30 08:49:44,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 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) [2023-08-30 08:49:44,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 276.0) internal successors, (1380), 5 states have internal predecessors, (1380), 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) [2023-08-30 08:49:44,015 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 276.0) internal successors, (1380), 5 states have internal predecessors, (1380), 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) [2023-08-30 08:49:44,015 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 115 flow. Second operand 4 states and 548 transitions. [2023-08-30 08:49:44,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 223 flow [2023-08-30 08:49:44,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:49:44,021 INFO L231 Difference]: Finished difference. Result has 40 places, 30 transitions, 104 flow [2023-08-30 08:49:44,021 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2023-08-30 08:49:44,021 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2023-08-30 08:49:44,022 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 104 flow [2023-08-30 08:49:44,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2023-08-30 08:49:44,022 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:49:44,022 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:49:44,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:49:44,023 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:49:44,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:49:44,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1698037055, now seen corresponding path program 1 times [2023-08-30 08:49:44,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:49:44,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419886755] [2023-08-30 08:49:44,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:49:44,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:49:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:49:44,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:49:44,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:49:44,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419886755] [2023-08-30 08:49:44,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419886755] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:49:44,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:49:44,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:49:44,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768197400] [2023-08-30 08:49:44,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:49:44,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:49:44,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:49:44,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:49:44,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:49:44,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 276 [2023-08-30 08:49:44,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2023-08-30 08:49:44,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:49:44,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 276 [2023-08-30 08:49:44,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:49:44,620 INFO L130 PetriNetUnfolder]: 1937/2777 cut-off events. [2023-08-30 08:49:44,621 INFO L131 PetriNetUnfolder]: For 766/766 co-relation queries the response was YES. [2023-08-30 08:49:44,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6935 conditions, 2777 events. 1937/2777 cut-off events. For 766/766 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 12430 event pairs, 395 based on Foata normal form. 0/2586 useless extension candidates. Maximal degree in co-relation 6923. Up to 1277 conditions per place. [2023-08-30 08:49:44,637 INFO L137 encePairwiseOnDemand]: 267/276 looper letters, 52 selfloop transitions, 9 changer transitions 0/62 dead transitions. [2023-08-30 08:49:44,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 62 transitions, 308 flow [2023-08-30 08:49:44,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:49:44,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:49:44,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 565 transitions. [2023-08-30 08:49:44,640 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5117753623188406 [2023-08-30 08:49:44,641 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 565 transitions. [2023-08-30 08:49:44,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 565 transitions. [2023-08-30 08:49:44,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:49:44,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 565 transitions. [2023-08-30 08:49:44,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 141.25) internal successors, (565), 4 states have internal predecessors, (565), 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) [2023-08-30 08:49:44,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 276.0) internal successors, (1380), 5 states have internal predecessors, (1380), 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) [2023-08-30 08:49:44,646 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 276.0) internal successors, (1380), 5 states have internal predecessors, (1380), 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) [2023-08-30 08:49:44,646 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 104 flow. Second operand 4 states and 565 transitions. [2023-08-30 08:49:44,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 62 transitions, 308 flow [2023-08-30 08:49:44,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 62 transitions, 302 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 08:49:44,649 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 156 flow [2023-08-30 08:49:44,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=156, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2023-08-30 08:49:44,650 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2023-08-30 08:49:44,650 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 156 flow [2023-08-30 08:49:44,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2023-08-30 08:49:44,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:49:44,651 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:49:44,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:49:44,651 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:49:44,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:49:44,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1723153597, now seen corresponding path program 1 times [2023-08-30 08:49:44,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:49:44,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970116058] [2023-08-30 08:49:44,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:49:44,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:49:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:49:44,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:49:44,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:49:44,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970116058] [2023-08-30 08:49:44,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970116058] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:49:44,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:49:44,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:49:44,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323081320] [2023-08-30 08:49:44,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:49:44,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:49:44,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:49:44,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:49:44,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:49:44,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 276 [2023-08-30 08:49:44,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 156 flow. Second operand has 5 states, 5 states have (on average 127.6) internal successors, (638), 5 states have internal predecessors, (638), 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) [2023-08-30 08:49:44,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:49:44,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 276 [2023-08-30 08:49:44,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:49:45,184 INFO L130 PetriNetUnfolder]: 1679/2369 cut-off events. [2023-08-30 08:49:45,184 INFO L131 PetriNetUnfolder]: For 1572/1572 co-relation queries the response was YES. [2023-08-30 08:49:45,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6988 conditions, 2369 events. 1679/2369 cut-off events. For 1572/1572 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 10082 event pairs, 351 based on Foata normal form. 0/2352 useless extension candidates. Maximal degree in co-relation 6975. Up to 968 conditions per place. [2023-08-30 08:49:45,194 INFO L137 encePairwiseOnDemand]: 267/276 looper letters, 59 selfloop transitions, 13 changer transitions 4/77 dead transitions. [2023-08-30 08:49:45,194 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 77 transitions, 422 flow [2023-08-30 08:49:45,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:49:45,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:49:45,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 705 transitions. [2023-08-30 08:49:45,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5108695652173914 [2023-08-30 08:49:45,197 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 705 transitions. [2023-08-30 08:49:45,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 705 transitions. [2023-08-30 08:49:45,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:49:45,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 705 transitions. [2023-08-30 08:49:45,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 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) [2023-08-30 08:49:45,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 276.0) internal successors, (1656), 6 states have internal predecessors, (1656), 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) [2023-08-30 08:49:45,202 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 276.0) internal successors, (1656), 6 states have internal predecessors, (1656), 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) [2023-08-30 08:49:45,202 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 156 flow. Second operand 5 states and 705 transitions. [2023-08-30 08:49:45,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 77 transitions, 422 flow [2023-08-30 08:49:45,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 77 transitions, 404 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-30 08:49:45,205 INFO L231 Difference]: Finished difference. Result has 45 places, 34 transitions, 180 flow [2023-08-30 08:49:45,206 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=180, PETRI_PLACES=45, PETRI_TRANSITIONS=34} [2023-08-30 08:49:45,206 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2023-08-30 08:49:45,207 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 34 transitions, 180 flow [2023-08-30 08:49:45,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 127.6) internal successors, (638), 5 states have internal predecessors, (638), 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) [2023-08-30 08:49:45,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:49:45,207 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:49:45,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:49:45,208 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:49:45,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:49:45,208 INFO L85 PathProgramCache]: Analyzing trace with hash 229862942, now seen corresponding path program 1 times [2023-08-30 08:49:45,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:49:45,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785270937] [2023-08-30 08:49:45,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:49:45,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:49:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:49:45,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:49:45,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:49:45,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785270937] [2023-08-30 08:49:45,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785270937] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:49:45,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:49:45,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:49:45,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307621776] [2023-08-30 08:49:45,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:49:45,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:49:45,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:49:45,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:49:45,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:49:45,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 276 [2023-08-30 08:49:45,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 34 transitions, 180 flow. Second operand has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 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) [2023-08-30 08:49:45,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:49:45,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 276 [2023-08-30 08:49:45,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:49:45,726 INFO L130 PetriNetUnfolder]: 1652/2322 cut-off events. [2023-08-30 08:49:45,726 INFO L131 PetriNetUnfolder]: For 2026/2026 co-relation queries the response was YES. [2023-08-30 08:49:45,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7037 conditions, 2322 events. 1652/2322 cut-off events. For 2026/2026 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 9947 event pairs, 351 based on Foata normal form. 16/2337 useless extension candidates. Maximal degree in co-relation 7023. Up to 968 conditions per place. [2023-08-30 08:49:45,736 INFO L137 encePairwiseOnDemand]: 267/276 looper letters, 0 selfloop transitions, 0 changer transitions 69/69 dead transitions. [2023-08-30 08:49:45,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 69 transitions, 374 flow [2023-08-30 08:49:45,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:49:45,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:49:45,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 822 transitions. [2023-08-30 08:49:45,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4963768115942029 [2023-08-30 08:49:45,739 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 822 transitions. [2023-08-30 08:49:45,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 822 transitions. [2023-08-30 08:49:45,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:49:45,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 822 transitions. [2023-08-30 08:49:45,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 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) [2023-08-30 08:49:45,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 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) [2023-08-30 08:49:45,745 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 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) [2023-08-30 08:49:45,745 INFO L175 Difference]: Start difference. First operand has 45 places, 34 transitions, 180 flow. Second operand 6 states and 822 transitions. [2023-08-30 08:49:45,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 69 transitions, 374 flow [2023-08-30 08:49:45,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 69 transitions, 319 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 08:49:45,770 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2023-08-30 08:49:45,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2023-08-30 08:49:45,772 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2023-08-30 08:49:45,773 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2023-08-30 08:49:45,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 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) [2023-08-30 08:49:45,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 08:49:45,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 08:49:45,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 08:49:45,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 08:49:45,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 08:49:45,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 08:49:45,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 08:49:45,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 08:49:45,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 08:49:45,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 08:49:45,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 08:49:45,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 08:49:45,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 08:49:45,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 08:49:45,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 08:49:45,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 08:49:45,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 08:49:45,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 08:49:45,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 08:49:45,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 08:49:45,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 08:49:45,784 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 08:49:45,788 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:49:45,788 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:49:45,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:49:45 BasicIcfg [2023-08-30 08:49:45,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:49:45,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:49:45,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:49:45,793 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:49:45,793 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:49:36" (3/4) ... [2023-08-30 08:49:45,795 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:49:45,798 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:49:45,798 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:49:45,798 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 08:49:45,798 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 08:49:45,803 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2023-08-30 08:49:45,803 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-08-30 08:49:45,804 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 08:49:45,804 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:49:45,845 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:49:45,845 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:49:45,846 INFO L158 Benchmark]: Toolchain (without parser) took 10619.88ms. Allocated memory was 60.8MB in the beginning and 645.9MB in the end (delta: 585.1MB). Free memory was 36.5MB in the beginning and 223.0MB in the end (delta: -186.5MB). Peak memory consumption was 398.8MB. Max. memory is 16.1GB. [2023-08-30 08:49:45,846 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 50.3MB. Free memory is still 27.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:49:45,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 577.45ms. Allocated memory is still 60.8MB. Free memory was 36.3MB in the beginning and 27.5MB in the end (delta: 8.8MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2023-08-30 08:49:45,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.17ms. Allocated memory is still 60.8MB. Free memory was 27.3MB in the beginning and 24.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:49:45,848 INFO L158 Benchmark]: Boogie Preprocessor took 56.68ms. Allocated memory is still 60.8MB. Free memory was 24.9MB in the beginning and 38.4MB in the end (delta: -13.6MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2023-08-30 08:49:45,848 INFO L158 Benchmark]: RCFGBuilder took 673.51ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 38.4MB in the beginning and 46.4MB in the end (delta: -8.0MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2023-08-30 08:49:45,848 INFO L158 Benchmark]: TraceAbstraction took 9196.67ms. Allocated memory was 73.4MB in the beginning and 645.9MB in the end (delta: 572.5MB). Free memory was 45.6MB in the beginning and 227.2MB in the end (delta: -181.6MB). Peak memory consumption was 390.5MB. Max. memory is 16.1GB. [2023-08-30 08:49:45,848 INFO L158 Benchmark]: Witness Printer took 52.67ms. Allocated memory is still 645.9MB. Free memory was 227.2MB in the beginning and 223.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:49:45,850 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 50.3MB. Free memory is still 27.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 577.45ms. Allocated memory is still 60.8MB. Free memory was 36.3MB in the beginning and 27.5MB in the end (delta: 8.8MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.17ms. Allocated memory is still 60.8MB. Free memory was 27.3MB in the beginning and 24.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.68ms. Allocated memory is still 60.8MB. Free memory was 24.9MB in the beginning and 38.4MB in the end (delta: -13.6MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * RCFGBuilder took 673.51ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 38.4MB in the beginning and 46.4MB in the end (delta: -8.0MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9196.67ms. Allocated memory was 73.4MB in the beginning and 645.9MB in the end (delta: 572.5MB). Free memory was 45.6MB in the beginning and 227.2MB in the end (delta: -181.6MB). Peak memory consumption was 390.5MB. Max. memory is 16.1GB. * Witness Printer took 52.67ms. Allocated memory is still 645.9MB. Free memory was 227.2MB in the beginning and 223.0MB in the end (delta: 4.2MB). 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: 5.5s, 157 PlacesBefore, 43 PlacesAfterwards, 146 TransitionsBefore, 30 TransitionsAfterwards, 3224 CoEnabledTransitionPairs, 8 FixpointIterations, 62 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 126 TotalNumberOfCompositions, 10791 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4667, independent: 4342, independent conditional: 0, independent unconditional: 4342, dependent: 325, dependent conditional: 0, dependent unconditional: 325, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1717, independent: 1657, independent conditional: 0, independent unconditional: 1657, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4667, independent: 2685, independent conditional: 0, independent unconditional: 2685, dependent: 265, dependent conditional: 0, dependent unconditional: 265, unknown: 1717, unknown conditional: 0, unknown unconditional: 1717] , Statistics on independence cache: Total cache size (in pairs): 169, Positive cache size: 146, Positive conditional cache size: 0, Positive unconditional cache size: 146, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 848]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 848]: 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 9 procedures, 188 locations, 20 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: 9.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 229 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 206 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 395 IncrementalHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 10 mSDtfsCounter, 395 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 08:49:45,887 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