./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_04-list2_nr.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/goblint-regression/09-regions_04-list2_nr.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 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 --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 06:13:27,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 06:13:27,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 06:13:27,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 06:13:27,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 06:13:27,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 06:13:27,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 06:13:27,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 06:13:27,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 06:13:27,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 06:13:27,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 06:13:27,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 06:13:27,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 06:13:27,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 06:13:27,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 06:13:27,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 06:13:27,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 06:13:27,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 06:13:27,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 06:13:27,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 06:13:27,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 06:13:27,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 06:13:27,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 06:13:27,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 06:13:27,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 06:13:27,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 06:13:27,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 06:13:27,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 06:13:27,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 06:13:27,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 06:13:27,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 06:13:27,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 06:13:27,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 06:13:27,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 06:13:27,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 06:13:27,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 06:13:27,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 06:13:27,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 06:13:27,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 06:13:27,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 06:13:27,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 06:13:27,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 06:13:27,232 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 06:13:27,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 06:13:27,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 06:13:27,234 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 06:13:27,234 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 06:13:27,235 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 06:13:27,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 06:13:27,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 06:13:27,235 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 06:13:27,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 06:13:27,237 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 06:13:27,237 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 06:13:27,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 06:13:27,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 06:13:27,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 06:13:27,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 06:13:27,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 06:13:27,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 06:13:27,238 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 06:13:27,238 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 06:13:27,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 06:13:27,239 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 06:13:27,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 06:13:27,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 06:13:27,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 06:13:27,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 06:13:27,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:13:27,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 06:13:27,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 06:13:27,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 06:13:27,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 06:13:27,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 06:13:27,241 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 06:13:27,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 06:13:27,242 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 06:13:27,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 06:13:27,242 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 06:13:27,242 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 06:13:27,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 06:13:27,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 06:13:27,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 06:13:27,612 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 06:13:27,613 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 06:13:27,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_04-list2_nr.i [2023-09-01 06:13:28,900 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 06:13:29,195 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 06:13:29,195 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_04-list2_nr.i [2023-09-01 06:13:29,211 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b364c89fb/3e967974412040568ec5004b3364e8a7/FLAG966ffafb5 [2023-09-01 06:13:29,227 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b364c89fb/3e967974412040568ec5004b3364e8a7 [2023-09-01 06:13:29,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 06:13:29,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 06:13:29,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 06:13:29,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 06:13:29,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 06:13:29,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:13:29" (1/1) ... [2023-09-01 06:13:29,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b995aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:13:29, skipping insertion in model container [2023-09-01 06:13:29,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:13:29" (1/1) ... [2023-09-01 06:13:29,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 06:13:29,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 06:13:29,870 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:13:29,884 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 06:13:29,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:13:30,041 INFO L208 MainTranslator]: Completed translation [2023-09-01 06:13:30,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:13:30 WrapperNode [2023-09-01 06:13:30,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 06:13:30,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 06:13:30,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 06:13:30,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 06:13:30,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:13:30" (1/1) ... [2023-09-01 06:13:30,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:13:30" (1/1) ... [2023-09-01 06:13:30,112 INFO L138 Inliner]: procedures = 368, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 86 [2023-09-01 06:13:30,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 06:13:30,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 06:13:30,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 06:13:30,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 06:13:30,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:13:30" (1/1) ... [2023-09-01 06:13:30,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:13:30" (1/1) ... [2023-09-01 06:13:30,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:13:30" (1/1) ... [2023-09-01 06:13:30,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:13:30" (1/1) ... [2023-09-01 06:13:30,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:13:30" (1/1) ... [2023-09-01 06:13:30,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:13:30" (1/1) ... [2023-09-01 06:13:30,155 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:13:30" (1/1) ... [2023-09-01 06:13:30,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:13:30" (1/1) ... [2023-09-01 06:13:30,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 06:13:30,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 06:13:30,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 06:13:30,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 06:13:30,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:13:30" (1/1) ... [2023-09-01 06:13:30,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:13:30,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:13:30,206 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 06:13:30,224 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 06:13:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 06:13:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-09-01 06:13:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 06:13:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 06:13:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 06:13:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 06:13:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-01 06:13:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 06:13:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-09-01 06:13:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 06:13:30,248 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 06:13:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 06:13:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 06:13:30,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 06:13:30,250 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 06:13:30,462 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 06:13:30,463 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 06:13:30,680 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 06:13:30,687 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 06:13:30,687 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 06:13:30,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:13:30 BoogieIcfgContainer [2023-09-01 06:13:30,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 06:13:30,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 06:13:30,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 06:13:30,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 06:13:30,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 06:13:29" (1/3) ... [2023-09-01 06:13:30,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8e1e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:13:30, skipping insertion in model container [2023-09-01 06:13:30,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:13:30" (2/3) ... [2023-09-01 06:13:30,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8e1e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:13:30, skipping insertion in model container [2023-09-01 06:13:30,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:13:30" (3/3) ... [2023-09-01 06:13:30,696 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_04-list2_nr.i [2023-09-01 06:13:30,702 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 06:13:30,710 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 06:13:30,711 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-09-01 06:13:30,711 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 06:13:30,768 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 06:13:30,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 125 transitions, 255 flow [2023-09-01 06:13:30,874 INFO L130 PetriNetUnfolder]: 0/124 cut-off events. [2023-09-01 06:13:30,876 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:13:30,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 124 events. 0/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-09-01 06:13:30,879 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 125 transitions, 255 flow [2023-09-01 06:13:30,885 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 116 transitions, 235 flow [2023-09-01 06:13:30,888 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 06:13:30,901 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 116 transitions, 235 flow [2023-09-01 06:13:30,910 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 116 transitions, 235 flow [2023-09-01 06:13:30,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 116 transitions, 235 flow [2023-09-01 06:13:30,940 INFO L130 PetriNetUnfolder]: 0/116 cut-off events. [2023-09-01 06:13:30,940 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:13:30,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 116 events. 0/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-09-01 06:13:30,942 INFO L119 LiptonReduction]: Number of co-enabled transitions 1150 [2023-09-01 06:13:53,114 WARN L222 SmtUtils]: Spent 7.86s on a formula simplification that was a NOOP. DAG size: 195 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 06:13:58,258 WARN L222 SmtUtils]: Spent 5.14s on a formula simplification that was a NOOP. DAG size: 191 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 06:14:03,379 WARN L222 SmtUtils]: Spent 5.12s on a formula simplification that was a NOOP. DAG size: 195 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 06:14:31,800 WARN L222 SmtUtils]: Spent 23.89s on a formula simplification that was a NOOP. DAG size: 319 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 06:14:40,261 WARN L222 SmtUtils]: Spent 8.46s on a formula simplification that was a NOOP. DAG size: 284 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 06:14:58,966 WARN L222 SmtUtils]: Spent 18.70s on a formula simplification that was a NOOP. DAG size: 319 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 06:15:06,795 WARN L222 SmtUtils]: Spent 7.82s on a formula simplification that was a NOOP. DAG size: 284 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 06:15:06,797 INFO L134 LiptonReduction]: Checked pairs total: 2031 [2023-09-01 06:15:06,798 INFO L136 LiptonReduction]: Total number of compositions: 108 [2023-09-01 06:15:06,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 06:15:06,813 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;@5b39ed63, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 06:15:06,813 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-09-01 06:15:06,818 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2023-09-01 06:15:06,819 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:15:06,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:15:06,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 06:15:06,820 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:15:06,824 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:15:06,825 INFO L85 PathProgramCache]: Analyzing trace with hash 417675, now seen corresponding path program 1 times [2023-09-01 06:15:06,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:15:06,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811564300] [2023-09-01 06:15:06,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:15:06,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:15:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:15:08,573 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 06:15:08,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:15:08,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811564300] [2023-09-01 06:15:08,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811564300] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:15:08,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:15:08,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:15:08,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489058091] [2023-09-01 06:15:08,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:15:08,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:15:08,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:15:08,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:15:08,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:15:08,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 233 [2023-09-01 06:15:08,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 35 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 06:15:08,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:15:08,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 233 [2023-09-01 06:15:08,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:15:08,880 INFO L130 PetriNetUnfolder]: 42/99 cut-off events. [2023-09-01 06:15:08,881 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:15:08,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 99 events. 42/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 298 event pairs, 14 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 194. Up to 61 conditions per place. [2023-09-01 06:15:08,886 INFO L137 encePairwiseOnDemand]: 230/233 looper letters, 20 selfloop transitions, 2 changer transitions 0/22 dead transitions. [2023-09-01 06:15:08,887 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 22 transitions, 91 flow [2023-09-01 06:15:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:15:08,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:15:08,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2023-09-01 06:15:08,907 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5007153075822603 [2023-09-01 06:15:08,907 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 350 transitions. [2023-09-01 06:15:08,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 350 transitions. [2023-09-01 06:15:08,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:15:08,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 350 transitions. [2023-09-01 06:15:08,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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 06:15:08,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 233.0) internal successors, (932), 4 states have internal predecessors, (932), 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 06:15:08,925 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 233.0) internal successors, (932), 4 states have internal predecessors, (932), 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 06:15:08,927 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 35 flow. Second operand 3 states and 350 transitions. [2023-09-01 06:15:08,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 22 transitions, 91 flow [2023-09-01 06:15:08,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 22 transitions, 90 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:15:08,931 INFO L231 Difference]: Finished difference. Result has 20 places, 15 transitions, 36 flow [2023-09-01 06:15:08,933 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=20, PETRI_TRANSITIONS=15} [2023-09-01 06:15:08,937 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 0 predicate places. [2023-09-01 06:15:08,939 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 15 transitions, 36 flow [2023-09-01 06:15:08,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 06:15:08,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:15:08,941 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 06:15:08,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 06:15:08,941 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:15:08,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:15:08,943 INFO L85 PathProgramCache]: Analyzing trace with hash 417674, now seen corresponding path program 1 times [2023-09-01 06:15:08,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:15:08,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17727307] [2023-09-01 06:15:08,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:15:08,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:15:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:15:10,130 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 06:15:10,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:15:10,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17727307] [2023-09-01 06:15:10,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17727307] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:15:10,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:15:10,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:15:10,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856078917] [2023-09-01 06:15:10,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:15:10,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:15:10,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:15:10,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:15:10,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:15:10,230 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 233 [2023-09-01 06:15:10,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 15 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 06:15:10,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:15:10,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 233 [2023-09-01 06:15:10,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:15:10,352 INFO L130 PetriNetUnfolder]: 35/84 cut-off events. [2023-09-01 06:15:10,352 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 06:15:10,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 84 events. 35/84 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 232 event pairs, 7 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 172. Up to 61 conditions per place. [2023-09-01 06:15:10,354 INFO L137 encePairwiseOnDemand]: 230/233 looper letters, 19 selfloop transitions, 2 changer transitions 0/21 dead transitions. [2023-09-01 06:15:10,354 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 21 transitions, 90 flow [2023-09-01 06:15:10,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:15:10,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:15:10,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 349 transitions. [2023-09-01 06:15:10,356 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49928469241773965 [2023-09-01 06:15:10,356 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 349 transitions. [2023-09-01 06:15:10,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 349 transitions. [2023-09-01 06:15:10,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:15:10,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 349 transitions. [2023-09-01 06:15:10,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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 06:15:10,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 233.0) internal successors, (932), 4 states have internal predecessors, (932), 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 06:15:10,360 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 233.0) internal successors, (932), 4 states have internal predecessors, (932), 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 06:15:10,360 INFO L175 Difference]: Start difference. First operand has 20 places, 15 transitions, 36 flow. Second operand 3 states and 349 transitions. [2023-09-01 06:15:10,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 21 transitions, 90 flow [2023-09-01 06:15:10,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 21 transitions, 86 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 06:15:10,361 INFO L231 Difference]: Finished difference. Result has 19 places, 14 transitions, 34 flow [2023-09-01 06:15:10,361 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=34, PETRI_PLACES=19, PETRI_TRANSITIONS=14} [2023-09-01 06:15:10,362 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, -1 predicate places. [2023-09-01 06:15:10,362 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 14 transitions, 34 flow [2023-09-01 06:15:10,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 06:15:10,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:15:10,363 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 06:15:10,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 06:15:10,363 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:15:10,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:15:10,364 INFO L85 PathProgramCache]: Analyzing trace with hash -442972717, now seen corresponding path program 1 times [2023-09-01 06:15:10,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:15:10,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006877452] [2023-09-01 06:15:10,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:15:10,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:15:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:15:11,494 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 06:15:11,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:15:11,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006877452] [2023-09-01 06:15:11,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006877452] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:15:11,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:15:11,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 06:15:11,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620786714] [2023-09-01 06:15:11,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:15:11,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 06:15:11,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:15:11,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 06:15:11,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 06:15:11,620 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 233 [2023-09-01 06:15:11,621 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 14 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 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 06:15:11,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:15:11,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 233 [2023-09-01 06:15:11,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:15:11,777 INFO L130 PetriNetUnfolder]: 28/69 cut-off events. [2023-09-01 06:15:11,777 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 06:15:11,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 69 events. 28/69 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 168 event pairs, 7 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 142. Up to 45 conditions per place. [2023-09-01 06:15:11,778 INFO L137 encePairwiseOnDemand]: 230/233 looper letters, 18 selfloop transitions, 2 changer transitions 0/20 dead transitions. [2023-09-01 06:15:11,778 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 20 transitions, 86 flow [2023-09-01 06:15:11,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 06:15:11,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 06:15:11,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 449 transitions. [2023-09-01 06:15:11,780 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48175965665236054 [2023-09-01 06:15:11,780 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 449 transitions. [2023-09-01 06:15:11,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 449 transitions. [2023-09-01 06:15:11,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:15:11,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 449 transitions. [2023-09-01 06:15:11,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 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 06:15:11,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 233.0) internal successors, (1165), 5 states have internal predecessors, (1165), 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 06:15:11,784 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 233.0) internal successors, (1165), 5 states have internal predecessors, (1165), 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 06:15:11,784 INFO L175 Difference]: Start difference. First operand has 19 places, 14 transitions, 34 flow. Second operand 4 states and 449 transitions. [2023-09-01 06:15:11,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 20 transitions, 86 flow [2023-09-01 06:15:11,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 20 transitions, 82 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 06:15:11,785 INFO L231 Difference]: Finished difference. Result has 19 places, 13 transitions, 32 flow [2023-09-01 06:15:11,785 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=32, PETRI_PLACES=19, PETRI_TRANSITIONS=13} [2023-09-01 06:15:11,786 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, -1 predicate places. [2023-09-01 06:15:11,786 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 32 flow [2023-09-01 06:15:11,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 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 06:15:11,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:15:11,787 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 06:15:11,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 06:15:11,788 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-09-01 06:15:11,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:15:11,788 INFO L85 PathProgramCache]: Analyzing trace with hash -442972707, now seen corresponding path program 1 times [2023-09-01 06:15:11,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:15:11,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219270777] [2023-09-01 06:15:11,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:15:11,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:15:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:15:12,857 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 06:15:12,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:15:12,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219270777] [2023-09-01 06:15:12,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219270777] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:15:12,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:15:12,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 06:15:12,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164851129] [2023-09-01 06:15:12,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:15:12,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 06:15:12,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:15:12,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 06:15:12,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 06:15:12,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 233 [2023-09-01 06:15:12,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 32 flow. Second operand has 4 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 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 06:15:12,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:15:12,952 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 233 [2023-09-01 06:15:12,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:15:13,042 INFO L130 PetriNetUnfolder]: 21/54 cut-off events. [2023-09-01 06:15:13,042 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 06:15:13,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 54 events. 21/54 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 117 event pairs, 7 based on Foata normal form. 8/62 useless extension candidates. Maximal degree in co-relation 112. Up to 30 conditions per place. [2023-09-01 06:15:13,042 INFO L137 encePairwiseOnDemand]: 230/233 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2023-09-01 06:15:13,042 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 19 transitions, 82 flow [2023-09-01 06:15:13,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 06:15:13,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 06:15:13,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 448 transitions. [2023-09-01 06:15:13,044 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48068669527896996 [2023-09-01 06:15:13,044 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 448 transitions. [2023-09-01 06:15:13,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 448 transitions. [2023-09-01 06:15:13,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:15:13,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 448 transitions. [2023-09-01 06:15:13,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 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 06:15:13,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 233.0) internal successors, (1165), 5 states have internal predecessors, (1165), 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 06:15:13,048 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 233.0) internal successors, (1165), 5 states have internal predecessors, (1165), 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 06:15:13,048 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 32 flow. Second operand 4 states and 448 transitions. [2023-09-01 06:15:13,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 19 transitions, 82 flow [2023-09-01 06:15:13,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 19 transitions, 79 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 06:15:13,049 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2023-09-01 06:15:13,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=27, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2023-09-01 06:15:13,050 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, -1 predicate places. [2023-09-01 06:15:13,050 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2023-09-01 06:15:13,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 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 06:15:13,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2023-09-01 06:15:13,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2023-09-01 06:15:13,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2023-09-01 06:15:13,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2023-09-01 06:15:13,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2023-09-01 06:15:13,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2023-09-01 06:15:13,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2023-09-01 06:15:13,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2023-09-01 06:15:13,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2023-09-01 06:15:13,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 06:15:13,055 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-09-01 06:15:13,060 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 06:15:13,060 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 06:15:13,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 06:15:13 BasicIcfg [2023-09-01 06:15:13,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 06:15:13,064 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 06:15:13,064 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 06:15:13,064 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 06:15:13,065 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:13:30" (3/4) ... [2023-09-01 06:15:13,067 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 06:15:13,071 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 06:15:13,076 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-09-01 06:15:13,076 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-09-01 06:15:13,076 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 06:15:13,106 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 06:15:13,106 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 06:15:13,107 INFO L158 Benchmark]: Toolchain (without parser) took 103876.43ms. Allocated memory was 73.4MB in the beginning and 289.4MB in the end (delta: 216.0MB). Free memory was 44.2MB in the beginning and 165.6MB in the end (delta: -121.4MB). Peak memory consumption was 93.5MB. Max. memory is 16.1GB. [2023-09-01 06:15:13,107 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 56.6MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:15:13,108 INFO L158 Benchmark]: CACSL2BoogieTranslator took 809.98ms. Allocated memory is still 73.4MB. Free memory was 44.0MB in the beginning and 44.8MB in the end (delta: -780.1kB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2023-09-01 06:15:13,108 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.05ms. Allocated memory is still 73.4MB. Free memory was 44.8MB in the beginning and 42.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:15:13,108 INFO L158 Benchmark]: Boogie Preprocessor took 56.26ms. Allocated memory is still 73.4MB. Free memory was 42.2MB in the beginning and 40.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:15:13,108 INFO L158 Benchmark]: RCFGBuilder took 519.53ms. Allocated memory is still 73.4MB. Free memory was 40.2MB in the beginning and 44.3MB in the end (delta: -4.1MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2023-09-01 06:15:13,109 INFO L158 Benchmark]: TraceAbstraction took 102372.57ms. Allocated memory was 73.4MB in the beginning and 289.4MB in the end (delta: 216.0MB). Free memory was 43.4MB in the beginning and 168.7MB in the end (delta: -125.3MB). Peak memory consumption was 90.0MB. Max. memory is 16.1GB. [2023-09-01 06:15:13,109 INFO L158 Benchmark]: Witness Printer took 42.47ms. Allocated memory is still 289.4MB. Free memory was 168.7MB in the beginning and 165.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:15:13,110 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 56.6MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 809.98ms. Allocated memory is still 73.4MB. Free memory was 44.0MB in the beginning and 44.8MB in the end (delta: -780.1kB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.05ms. Allocated memory is still 73.4MB. Free memory was 44.8MB in the beginning and 42.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.26ms. Allocated memory is still 73.4MB. Free memory was 42.2MB in the beginning and 40.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 519.53ms. Allocated memory is still 73.4MB. Free memory was 40.2MB in the beginning and 44.3MB in the end (delta: -4.1MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * TraceAbstraction took 102372.57ms. Allocated memory was 73.4MB in the beginning and 289.4MB in the end (delta: 216.0MB). Free memory was 43.4MB in the beginning and 168.7MB in the end (delta: -125.3MB). Peak memory consumption was 90.0MB. Max. memory is 16.1GB. * Witness Printer took 42.47ms. Allocated memory is still 289.4MB. Free memory was 168.7MB in the beginning and 165.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 95.9s, 120 PlacesBefore, 20 PlacesAfterwards, 116 TransitionsBefore, 16 TransitionsAfterwards, 1150 CoEnabledTransitionPairs, 8 FixpointIterations, 66 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 108 TotalNumberOfCompositions, 2031 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1200, independent: 1051, independent conditional: 0, independent unconditional: 1051, dependent: 149, dependent conditional: 0, dependent unconditional: 149, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 638, independent: 606, independent conditional: 0, independent unconditional: 606, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1200, independent: 445, independent conditional: 0, independent unconditional: 445, dependent: 117, dependent conditional: 0, dependent unconditional: 117, unknown: 638, unknown conditional: 0, unknown unconditional: 638] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1238]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1238]: 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 3 procedures, 159 locations, 9 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: 102.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 96.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 395 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 173 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 439 IncrementalHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 3 mSDtfsCounter, 439 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=1, InterpolantAutomatonStates: 14, 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, 0.3s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 468 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 06:15:13,132 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