./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c --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/weaver/chl-name-comparator-symm.wvr.c -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 908fbcc4d3742ed9abcae99df082df11caf0d6bd4e74389f515555cf6e492354 --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 10:58:32,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 10:58:32,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 10:58:32,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 10:58:32,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 10:58:32,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 10:58:32,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 10:58:32,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 10:58:32,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 10:58:32,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 10:58:32,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 10:58:32,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 10:58:32,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 10:58:32,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 10:58:32,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 10:58:32,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 10:58:32,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 10:58:32,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 10:58:32,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 10:58:32,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 10:58:32,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 10:58:32,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 10:58:32,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 10:58:32,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 10:58:32,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 10:58:32,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 10:58:32,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 10:58:32,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 10:58:32,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 10:58:32,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 10:58:32,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 10:58:32,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 10:58:32,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 10:58:32,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 10:58:32,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 10:58:32,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 10:58:32,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 10:58:32,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 10:58:32,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 10:58:32,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 10:58:32,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 10:58:32,204 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 10:58:32,241 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 10:58:32,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 10:58:32,243 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 10:58:32,243 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 10:58:32,244 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 10:58:32,244 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 10:58:32,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 10:58:32,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 10:58:32,245 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 10:58:32,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 10:58:32,246 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 10:58:32,246 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 10:58:32,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 10:58:32,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 10:58:32,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 10:58:32,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 10:58:32,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 10:58:32,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 10:58:32,248 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 10:58:32,248 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 10:58:32,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 10:58:32,248 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 10:58:32,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 10:58:32,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 10:58:32,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 10:58:32,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 10:58:32,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 10:58:32,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 10:58:32,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 10:58:32,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 10:58:32,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 10:58:32,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 10:58:32,250 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 10:58:32,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 10:58:32,251 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 10:58:32,251 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 10:58:32,251 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 10:58:32,251 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 908fbcc4d3742ed9abcae99df082df11caf0d6bd4e74389f515555cf6e492354 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 10:58:32,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 10:58:32,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 10:58:32,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 10:58:32,559 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 10:58:32,559 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 10:58:32,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c [2023-08-30 10:58:33,766 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 10:58:33,998 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 10:58:34,000 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c [2023-08-30 10:58:34,011 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2b988a85/0b6e7711fef54b9e9776de307b7cc3e9/FLAG1fd5567b0 [2023-08-30 10:58:34,034 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2b988a85/0b6e7711fef54b9e9776de307b7cc3e9 [2023-08-30 10:58:34,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 10:58:34,037 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 10:58:34,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 10:58:34,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 10:58:34,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 10:58:34,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:58:34" (1/1) ... [2023-08-30 10:58:34,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b75a308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:58:34, skipping insertion in model container [2023-08-30 10:58:34,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:58:34" (1/1) ... [2023-08-30 10:58:34,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 10:58:34,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 10:58:34,278 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c[3856,3869] [2023-08-30 10:58:34,289 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 10:58:34,299 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 10:58:34,334 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c[3856,3869] [2023-08-30 10:58:34,344 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 10:58:34,360 INFO L208 MainTranslator]: Completed translation [2023-08-30 10:58:34,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:58:34 WrapperNode [2023-08-30 10:58:34,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 10:58:34,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 10:58:34,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 10:58:34,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 10:58:34,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:58:34" (1/1) ... [2023-08-30 10:58:34,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:58:34" (1/1) ... [2023-08-30 10:58:34,421 INFO L138 Inliner]: procedures = 25, calls = 34, calls flagged for inlining = 14, calls inlined = 16, statements flattened = 263 [2023-08-30 10:58:34,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 10:58:34,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 10:58:34,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 10:58:34,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 10:58:34,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:58:34" (1/1) ... [2023-08-30 10:58:34,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:58:34" (1/1) ... [2023-08-30 10:58:34,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:58:34" (1/1) ... [2023-08-30 10:58:34,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:58:34" (1/1) ... [2023-08-30 10:58:34,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:58:34" (1/1) ... [2023-08-30 10:58:34,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:58:34" (1/1) ... [2023-08-30 10:58:34,466 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:58:34" (1/1) ... [2023-08-30 10:58:34,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:58:34" (1/1) ... [2023-08-30 10:58:34,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 10:58:34,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 10:58:34,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 10:58:34,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 10:58:34,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:58:34" (1/1) ... [2023-08-30 10:58:34,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 10:58:34,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:58:34,517 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 10:58:34,531 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 10:58:34,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 10:58:34,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 10:58:34,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 10:58:34,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 10:58:34,552 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 10:58:34,552 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 10:58:34,552 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-30 10:58:34,552 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-30 10:58:34,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 10:58:34,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 10:58:34,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 10:58:34,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 10:58:34,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 10:58:34,553 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 10:58:34,654 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 10:58:34,656 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 10:58:35,165 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 10:58:35,178 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 10:58:35,178 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-30 10:58:35,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:58:35 BoogieIcfgContainer [2023-08-30 10:58:35,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 10:58:35,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 10:58:35,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 10:58:35,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 10:58:35,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:58:34" (1/3) ... [2023-08-30 10:58:35,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742ecc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:58:35, skipping insertion in model container [2023-08-30 10:58:35,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:58:34" (2/3) ... [2023-08-30 10:58:35,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742ecc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:58:35, skipping insertion in model container [2023-08-30 10:58:35,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:58:35" (3/3) ... [2023-08-30 10:58:35,186 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-symm.wvr.c [2023-08-30 10:58:35,193 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 10:58:35,200 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 10:58:35,201 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-30 10:58:35,201 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 10:58:35,320 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 10:58:35,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 302 places, 318 transitions, 652 flow [2023-08-30 10:58:35,510 INFO L130 PetriNetUnfolder]: 23/316 cut-off events. [2023-08-30 10:58:35,510 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 10:58:35,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 316 events. 23/316 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 698 event pairs, 0 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2023-08-30 10:58:35,520 INFO L82 GeneralOperation]: Start removeDead. Operand has 302 places, 318 transitions, 652 flow [2023-08-30 10:58:35,529 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 286 places, 301 transitions, 614 flow [2023-08-30 10:58:35,532 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 10:58:35,544 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 286 places, 301 transitions, 614 flow [2023-08-30 10:58:35,548 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 286 places, 301 transitions, 614 flow [2023-08-30 10:58:35,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 286 places, 301 transitions, 614 flow [2023-08-30 10:58:35,614 INFO L130 PetriNetUnfolder]: 22/301 cut-off events. [2023-08-30 10:58:35,615 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 10:58:35,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 301 events. 22/301 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 691 event pairs, 0 based on Foata normal form. 0/260 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2023-08-30 10:58:35,630 INFO L119 LiptonReduction]: Number of co-enabled transitions 18512 [2023-08-30 10:58:48,107 INFO L134 LiptonReduction]: Checked pairs total: 18426 [2023-08-30 10:58:48,107 INFO L136 LiptonReduction]: Total number of compositions: 387 [2023-08-30 10:58:48,120 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 10:58:48,125 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;@206f3a43, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 10:58:48,126 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-08-30 10:58:48,128 INFO L130 PetriNetUnfolder]: 1/3 cut-off events. [2023-08-30 10:58:48,128 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:58:48,128 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:58:48,129 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-30 10:58:48,129 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 10:58:48,133 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:58:48,133 INFO L85 PathProgramCache]: Analyzing trace with hash 42511, now seen corresponding path program 1 times [2023-08-30 10:58:48,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:58:48,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644794739] [2023-08-30 10:58:48,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:48,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:58:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:48,365 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 10:58:48,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:58:48,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644794739] [2023-08-30 10:58:48,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644794739] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:58:48,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:58:48,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:58:48,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285396101] [2023-08-30 10:58:48,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:58:48,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:58:48,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:58:48,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:58:48,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:58:48,423 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 705 [2023-08-30 10:58:48,429 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 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 10:58:48,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:58:48,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 705 [2023-08-30 10:58:48,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:58:48,662 INFO L130 PetriNetUnfolder]: 451/779 cut-off events. [2023-08-30 10:58:48,662 INFO L131 PetriNetUnfolder]: For 58/58 co-relation queries the response was YES. [2023-08-30 10:58:48,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1616 conditions, 779 events. 451/779 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 3627 event pairs, 378 based on Foata normal form. 2/345 useless extension candidates. Maximal degree in co-relation 720. Up to 392 conditions per place. [2023-08-30 10:58:48,668 INFO L137 encePairwiseOnDemand]: 693/705 looper letters, 49 selfloop transitions, 2 changer transitions 2/53 dead transitions. [2023-08-30 10:58:48,668 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 53 transitions, 236 flow [2023-08-30 10:58:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:58:48,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:58:48,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 953 transitions. [2023-08-30 10:58:48,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45059101654846334 [2023-08-30 10:58:48,690 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 953 transitions. [2023-08-30 10:58:48,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 953 transitions. [2023-08-30 10:58:48,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:58:48,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 953 transitions. [2023-08-30 10:58:48,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.6666666666667) internal successors, (953), 3 states have internal predecessors, (953), 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 10:58:48,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:48,710 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:48,712 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 84 flow. Second operand 3 states and 953 transitions. [2023-08-30 10:58:48,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 53 transitions, 236 flow [2023-08-30 10:58:48,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 53 transitions, 220 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 10:58:48,718 INFO L231 Difference]: Finished difference. Result has 31 places, 28 transitions, 71 flow [2023-08-30 10:58:48,720 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=31, PETRI_TRANSITIONS=28} [2023-08-30 10:58:48,722 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -9 predicate places. [2023-08-30 10:58:48,723 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 28 transitions, 71 flow [2023-08-30 10:58:48,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 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 10:58:48,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:58:48,725 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:58:48,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 10:58:48,726 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 10:58:48,735 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:58:48,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1321106, now seen corresponding path program 1 times [2023-08-30 10:58:48,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:58:48,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543604876] [2023-08-30 10:58:48,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:48,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:58:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:48,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:58:48,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:58:48,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543604876] [2023-08-30 10:58:48,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543604876] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 10:58:48,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247257290] [2023-08-30 10:58:48,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:48,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:58:48,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:58:48,834 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 10:58:48,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 10:58:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:48,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 10:58:48,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 10:58:48,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:58:48,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 10:58:48,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247257290] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:58:48,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 10:58:48,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-08-30 10:58:48,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446941894] [2023-08-30 10:58:48,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:58:48,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 10:58:48,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:58:48,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 10:58:48,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 10:58:49,001 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 705 [2023-08-30 10:58:49,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 28 transitions, 71 flow. Second operand has 4 states, 4 states have (on average 294.75) internal successors, (1179), 4 states have internal predecessors, (1179), 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 10:58:49,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:58:49,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 705 [2023-08-30 10:58:49,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:58:49,207 INFO L130 PetriNetUnfolder]: 451/776 cut-off events. [2023-08-30 10:58:49,207 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-30 10:58:49,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1579 conditions, 776 events. 451/776 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 3614 event pairs, 378 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 787. Up to 389 conditions per place. [2023-08-30 10:58:49,211 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 48 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2023-08-30 10:58:49,211 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 50 transitions, 216 flow [2023-08-30 10:58:49,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 10:58:49,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 10:58:49,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1227 transitions. [2023-08-30 10:58:49,215 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4351063829787234 [2023-08-30 10:58:49,215 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1227 transitions. [2023-08-30 10:58:49,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1227 transitions. [2023-08-30 10:58:49,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:58:49,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1227 transitions. [2023-08-30 10:58:49,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 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 10:58:49,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 705.0) internal successors, (3525), 5 states have internal predecessors, (3525), 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 10:58:49,225 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 705.0) internal successors, (3525), 5 states have internal predecessors, (3525), 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 10:58:49,225 INFO L175 Difference]: Start difference. First operand has 31 places, 28 transitions, 71 flow. Second operand 4 states and 1227 transitions. [2023-08-30 10:58:49,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 50 transitions, 216 flow [2023-08-30 10:58:49,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 50 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:58:49,228 INFO L231 Difference]: Finished difference. Result has 31 places, 27 transitions, 69 flow [2023-08-30 10:58:49,228 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=69, PETRI_PLACES=31, PETRI_TRANSITIONS=27} [2023-08-30 10:58:49,229 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -9 predicate places. [2023-08-30 10:58:49,229 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 27 transitions, 69 flow [2023-08-30 10:58:49,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 294.75) internal successors, (1179), 4 states have internal predecessors, (1179), 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 10:58:49,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:58:49,230 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:58:49,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 10:58:49,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:58:49,436 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 10:58:49,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:58:49,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1321107, now seen corresponding path program 1 times [2023-08-30 10:58:49,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:58:49,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496444134] [2023-08-30 10:58:49,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:49,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:58:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:49,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:58:49,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:58:49,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496444134] [2023-08-30 10:58:49,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496444134] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 10:58:49,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132851799] [2023-08-30 10:58:49,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:49,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:58:49,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:58:49,536 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 10:58:49,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 10:58:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:49,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 10:58:49,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 10:58:49,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:58:49,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 10:58:49,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:58:49,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132851799] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 10:58:49,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 10:58:49,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-08-30 10:58:49,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501598932] [2023-08-30 10:58:49,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 10:58:49,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 10:58:49,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:58:49,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 10:58:49,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 10:58:49,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 705 [2023-08-30 10:58:49,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 69 flow. Second operand has 7 states, 7 states have (on average 295.14285714285717) internal successors, (2066), 7 states have internal predecessors, (2066), 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 10:58:49,670 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:58:49,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 705 [2023-08-30 10:58:49,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:58:50,090 INFO L130 PetriNetUnfolder]: 1126/1937 cut-off events. [2023-08-30 10:58:50,090 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2023-08-30 10:58:50,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3932 conditions, 1937 events. 1126/1937 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 10585 event pairs, 945 based on Foata normal form. 0/856 useless extension candidates. Maximal degree in co-relation 3139. Up to 390 conditions per place. [2023-08-30 10:58:50,098 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 117 selfloop transitions, 5 changer transitions 0/122 dead transitions. [2023-08-30 10:58:50,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 122 transitions, 521 flow [2023-08-30 10:58:50,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 10:58:50,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 10:58:50,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1889 transitions. [2023-08-30 10:58:50,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4465721040189125 [2023-08-30 10:58:50,104 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1889 transitions. [2023-08-30 10:58:50,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1889 transitions. [2023-08-30 10:58:50,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:58:50,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1889 transitions. [2023-08-30 10:58:50,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 314.8333333333333) internal successors, (1889), 6 states have internal predecessors, (1889), 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 10:58:50,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 705.0) internal successors, (4935), 7 states have internal predecessors, (4935), 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 10:58:50,117 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 705.0) internal successors, (4935), 7 states have internal predecessors, (4935), 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 10:58:50,117 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 69 flow. Second operand 6 states and 1889 transitions. [2023-08-30 10:58:50,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 122 transitions, 521 flow [2023-08-30 10:58:50,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 122 transitions, 518 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 10:58:50,121 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 102 flow [2023-08-30 10:58:50,121 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=102, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2023-08-30 10:58:50,123 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2023-08-30 10:58:50,123 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 102 flow [2023-08-30 10:58:50,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 295.14285714285717) internal successors, (2066), 7 states have internal predecessors, (2066), 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 10:58:50,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:58:50,127 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 10:58:50,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-30 10:58:50,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-08-30 10:58:50,333 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 10:58:50,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:58:50,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1267539662, now seen corresponding path program 1 times [2023-08-30 10:58:50,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:58:50,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831699334] [2023-08-30 10:58:50,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:50,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:58:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:50,415 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 10:58:50,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:58:50,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831699334] [2023-08-30 10:58:50,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831699334] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:58:50,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:58:50,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:58:50,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37300462] [2023-08-30 10:58:50,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:58:50,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:58:50,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:58:50,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:58:50,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:58:50,434 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 705 [2023-08-30 10:58:50,436 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 296.6666666666667) internal successors, (890), 3 states have internal predecessors, (890), 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 10:58:50,436 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:58:50,436 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 705 [2023-08-30 10:58:50,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:58:50,663 INFO L130 PetriNetUnfolder]: 881/1522 cut-off events. [2023-08-30 10:58:50,663 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-08-30 10:58:50,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3111 conditions, 1522 events. 881/1522 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 8124 event pairs, 720 based on Foata normal form. 0/722 useless extension candidates. Maximal degree in co-relation 2481. Up to 1522 conditions per place. [2023-08-30 10:58:50,670 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 27 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2023-08-30 10:58:50,670 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 28 transitions, 154 flow [2023-08-30 10:58:50,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:58:50,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:58:50,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 911 transitions. [2023-08-30 10:58:50,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4307328605200946 [2023-08-30 10:58:50,673 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 911 transitions. [2023-08-30 10:58:50,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 911 transitions. [2023-08-30 10:58:50,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:58:50,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 911 transitions. [2023-08-30 10:58:50,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 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 10:58:50,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:50,681 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:50,681 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 102 flow. Second operand 3 states and 911 transitions. [2023-08-30 10:58:50,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 28 transitions, 154 flow [2023-08-30 10:58:50,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 28 transitions, 146 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-30 10:58:50,683 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 92 flow [2023-08-30 10:58:50,683 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2023-08-30 10:58:50,684 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2023-08-30 10:58:50,684 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 92 flow [2023-08-30 10:58:50,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 296.6666666666667) internal successors, (890), 3 states have internal predecessors, (890), 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 10:58:50,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:58:50,685 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 10:58:50,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 10:58:50,685 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 10:58:50,685 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:58:50,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1267539676, now seen corresponding path program 1 times [2023-08-30 10:58:50,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:58:50,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930207411] [2023-08-30 10:58:50,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:50,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:58:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:50,720 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 10:58:50,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:58:50,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930207411] [2023-08-30 10:58:50,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930207411] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:58:50,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:58:50,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 10:58:50,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318975095] [2023-08-30 10:58:50,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:58:50,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:58:50,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:58:50,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:58:50,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:58:50,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 705 [2023-08-30 10:58:50,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 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 10:58:50,734 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:58:50,734 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 705 [2023-08-30 10:58:50,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:58:51,048 INFO L130 PetriNetUnfolder]: 1181/2052 cut-off events. [2023-08-30 10:58:51,048 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2023-08-30 10:58:51,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4179 conditions, 2052 events. 1181/2052 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 11996 event pairs, 720 based on Foata normal form. 0/1022 useless extension candidates. Maximal degree in co-relation 4167. Up to 1523 conditions per place. [2023-08-30 10:58:51,057 INFO L137 encePairwiseOnDemand]: 699/705 looper letters, 40 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2023-08-30 10:58:51,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 206 flow [2023-08-30 10:58:51,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:58:51,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:58:51,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2023-08-30 10:58:51,060 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43546099290780144 [2023-08-30 10:58:51,060 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 921 transitions. [2023-08-30 10:58:51,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 921 transitions. [2023-08-30 10:58:51,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:58:51,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 921 transitions. [2023-08-30 10:58:51,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 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 10:58:51,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:51,067 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:51,068 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 92 flow. Second operand 3 states and 921 transitions. [2023-08-30 10:58:51,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 206 flow [2023-08-30 10:58:51,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 42 transitions, 205 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:58:51,069 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 109 flow [2023-08-30 10:58:51,070 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2023-08-30 10:58:51,070 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2023-08-30 10:58:51,070 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 109 flow [2023-08-30 10:58:51,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 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 10:58:51,071 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:58:51,071 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-08-30 10:58:51,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 10:58:51,072 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 10:58:51,072 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:58:51,072 INFO L85 PathProgramCache]: Analyzing trace with hash 705605328, now seen corresponding path program 2 times [2023-08-30 10:58:51,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:58:51,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207518211] [2023-08-30 10:58:51,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:51,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:58:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:51,146 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:58:51,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:58:51,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207518211] [2023-08-30 10:58:51,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207518211] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 10:58:51,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028888981] [2023-08-30 10:58:51,147 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 10:58:51,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:58:51,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:58:51,149 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 10:58:51,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-30 10:58:51,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 10:58:51,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 10:58:51,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-30 10:58:51,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 10:58:51,247 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 10:58:51,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 10:58:51,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028888981] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:58:51,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 10:58:51,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-08-30 10:58:51,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938436458] [2023-08-30 10:58:51,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:58:51,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:58:51,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:58:51,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:58:51,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-30 10:58:51,258 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 705 [2023-08-30 10:58:51,260 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 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 10:58:51,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:58:51,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 705 [2023-08-30 10:58:51,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:58:51,568 INFO L130 PetriNetUnfolder]: 1181/2051 cut-off events. [2023-08-30 10:58:51,569 INFO L131 PetriNetUnfolder]: For 428/428 co-relation queries the response was YES. [2023-08-30 10:58:51,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4814 conditions, 2051 events. 1181/2051 cut-off events. For 428/428 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 11687 event pairs, 990 based on Foata normal form. 1/1182 useless extension candidates. Maximal degree in co-relation 4801. Up to 2051 conditions per place. [2023-08-30 10:58:51,577 INFO L137 encePairwiseOnDemand]: 703/705 looper letters, 27 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2023-08-30 10:58:51,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 28 transitions, 155 flow [2023-08-30 10:58:51,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:58:51,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:58:51,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 909 transitions. [2023-08-30 10:58:51,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4297872340425532 [2023-08-30 10:58:51,580 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 909 transitions. [2023-08-30 10:58:51,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 909 transitions. [2023-08-30 10:58:51,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:58:51,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 909 transitions. [2023-08-30 10:58:51,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 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 10:58:51,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:51,586 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:51,586 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 109 flow. Second operand 3 states and 909 transitions. [2023-08-30 10:58:51,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 28 transitions, 155 flow [2023-08-30 10:58:51,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 28 transitions, 143 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-08-30 10:58:51,588 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 89 flow [2023-08-30 10:58:51,588 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=89, PETRI_PLACES=34, PETRI_TRANSITIONS=28} [2023-08-30 10:58:51,589 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -6 predicate places. [2023-08-30 10:58:51,589 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 89 flow [2023-08-30 10:58:51,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 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 10:58:51,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:58:51,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 10:58:51,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-30 10:58:51,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:58:51,795 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 10:58:51,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:58:51,796 INFO L85 PathProgramCache]: Analyzing trace with hash 639025070, now seen corresponding path program 1 times [2023-08-30 10:58:51,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:58:51,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065990030] [2023-08-30 10:58:51,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:51,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:58:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:51,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:58:51,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:58:51,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065990030] [2023-08-30 10:58:51,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065990030] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:58:51,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:58:51,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 10:58:51,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703629075] [2023-08-30 10:58:51,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:58:51,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:58:51,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:58:51,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:58:51,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:58:51,839 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 705 [2023-08-30 10:58:51,840 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 295.0) internal successors, (885), 3 states have internal predecessors, (885), 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 10:58:51,840 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:58:51,840 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 705 [2023-08-30 10:58:51,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:58:52,092 INFO L130 PetriNetUnfolder]: 1066/1856 cut-off events. [2023-08-30 10:58:52,093 INFO L131 PetriNetUnfolder]: For 280/280 co-relation queries the response was YES. [2023-08-30 10:58:52,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4251 conditions, 1856 events. 1066/1856 cut-off events. For 280/280 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 10339 event pairs, 885 based on Foata normal form. 0/1116 useless extension candidates. Maximal degree in co-relation 4241. Up to 1856 conditions per place. [2023-08-30 10:58:52,101 INFO L137 encePairwiseOnDemand]: 703/705 looper letters, 26 selfloop transitions, 1 changer transitions 0/27 dead transitions. [2023-08-30 10:58:52,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 27 transitions, 139 flow [2023-08-30 10:58:52,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:58:52,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:58:52,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 902 transitions. [2023-08-30 10:58:52,104 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4264775413711584 [2023-08-30 10:58:52,104 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 902 transitions. [2023-08-30 10:58:52,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 902 transitions. [2023-08-30 10:58:52,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:58:52,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 902 transitions. [2023-08-30 10:58:52,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 300.6666666666667) internal successors, (902), 3 states have internal predecessors, (902), 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 10:58:52,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:52,110 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:52,110 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 89 flow. Second operand 3 states and 902 transitions. [2023-08-30 10:58:52,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 27 transitions, 139 flow [2023-08-30 10:58:52,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 27 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:58:52,111 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 86 flow [2023-08-30 10:58:52,112 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2023-08-30 10:58:52,112 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -6 predicate places. [2023-08-30 10:58:52,112 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 86 flow [2023-08-30 10:58:52,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.0) internal successors, (885), 3 states have internal predecessors, (885), 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 10:58:52,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:58:52,113 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 10:58:52,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 10:58:52,114 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 10:58:52,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:58:52,114 INFO L85 PathProgramCache]: Analyzing trace with hash 639025090, now seen corresponding path program 1 times [2023-08-30 10:58:52,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:58:52,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342144734] [2023-08-30 10:58:52,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:52,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:58:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:52,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:58:52,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:58:52,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342144734] [2023-08-30 10:58:52,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342144734] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 10:58:52,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031492206] [2023-08-30 10:58:52,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:52,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:58:52,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:58:52,163 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 10:58:52,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-30 10:58:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:52,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 10:58:52,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 10:58:52,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 10:58:52,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 10:58:52,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031492206] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:58:52,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 10:58:52,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-30 10:58:52,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162840812] [2023-08-30 10:58:52,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:58:52,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:58:52,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:58:52,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:58:52,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 10:58:52,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 705 [2023-08-30 10:58:52,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 295.0) internal successors, (885), 3 states have internal predecessors, (885), 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 10:58:52,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:58:52,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 705 [2023-08-30 10:58:52,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:58:52,523 INFO L130 PetriNetUnfolder]: 853/1486 cut-off events. [2023-08-30 10:58:52,523 INFO L131 PetriNetUnfolder]: For 224/224 co-relation queries the response was YES. [2023-08-30 10:58:52,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3407 conditions, 1486 events. 853/1486 cut-off events. For 224/224 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 7925 event pairs, 708 based on Foata normal form. 1/895 useless extension candidates. Maximal degree in co-relation 3396. Up to 1486 conditions per place. [2023-08-30 10:58:52,531 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 25 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2023-08-30 10:58:52,532 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 140 flow [2023-08-30 10:58:52,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:58:52,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:58:52,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 903 transitions. [2023-08-30 10:58:52,535 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4269503546099291 [2023-08-30 10:58:52,535 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 903 transitions. [2023-08-30 10:58:52,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 903 transitions. [2023-08-30 10:58:52,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:58:52,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 903 transitions. [2023-08-30 10:58:52,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 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 10:58:52,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:52,542 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:52,542 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 86 flow. Second operand 3 states and 903 transitions. [2023-08-30 10:58:52,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 140 flow [2023-08-30 10:58:52,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 27 transitions, 137 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 10:58:52,544 INFO L231 Difference]: Finished difference. Result has 36 places, 27 transitions, 91 flow [2023-08-30 10:58:52,544 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2023-08-30 10:58:52,544 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2023-08-30 10:58:52,545 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 91 flow [2023-08-30 10:58:52,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.0) internal successors, (885), 3 states have internal predecessors, (885), 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 10:58:52,545 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:58:52,545 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:58:52,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-30 10:58:52,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:58:52,751 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 10:58:52,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:58:52,751 INFO L85 PathProgramCache]: Analyzing trace with hash 332351685, now seen corresponding path program 1 times [2023-08-30 10:58:52,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:58:52,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939095703] [2023-08-30 10:58:52,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:52,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:58:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:52,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 10:58:52,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:58:52,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939095703] [2023-08-30 10:58:52,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939095703] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 10:58:52,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250014085] [2023-08-30 10:58:52,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:52,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:58:52,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:58:52,812 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 10:58:52,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-30 10:58:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:52,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-30 10:58:52,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 10:58:52,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 10:58:52,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 10:58:52,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 10:58:52,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250014085] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 10:58:52,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 10:58:52,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2023-08-30 10:58:52,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315880148] [2023-08-30 10:58:52,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 10:58:52,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 10:58:52,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:58:52,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 10:58:52,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-08-30 10:58:52,999 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 705 [2023-08-30 10:58:53,002 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 91 flow. Second operand has 8 states, 8 states have (on average 289.125) internal successors, (2313), 8 states have internal predecessors, (2313), 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 10:58:53,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:58:53,002 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 705 [2023-08-30 10:58:53,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:58:53,212 INFO L130 PetriNetUnfolder]: 547/958 cut-off events. [2023-08-30 10:58:53,212 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2023-08-30 10:58:53,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2182 conditions, 958 events. 547/958 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 4926 event pairs, 246 based on Foata normal form. 2/604 useless extension candidates. Maximal degree in co-relation 2169. Up to 532 conditions per place. [2023-08-30 10:58:53,217 INFO L137 encePairwiseOnDemand]: 697/705 looper letters, 47 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2023-08-30 10:58:53,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 54 transitions, 259 flow [2023-08-30 10:58:53,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 10:58:53,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 10:58:53,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2067 transitions. [2023-08-30 10:58:53,223 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4188449848024316 [2023-08-30 10:58:53,223 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2067 transitions. [2023-08-30 10:58:53,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2067 transitions. [2023-08-30 10:58:53,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:58:53,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2067 transitions. [2023-08-30 10:58:53,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 295.2857142857143) internal successors, (2067), 7 states have internal predecessors, (2067), 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 10:58:53,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 705.0) internal successors, (5640), 8 states have internal predecessors, (5640), 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 10:58:53,236 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 705.0) internal successors, (5640), 8 states have internal predecessors, (5640), 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 10:58:53,236 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 91 flow. Second operand 7 states and 2067 transitions. [2023-08-30 10:58:53,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 54 transitions, 259 flow [2023-08-30 10:58:53,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 54 transitions, 251 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-30 10:58:53,238 INFO L231 Difference]: Finished difference. Result has 43 places, 28 transitions, 119 flow [2023-08-30 10:58:53,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=119, PETRI_PLACES=43, PETRI_TRANSITIONS=28} [2023-08-30 10:58:53,239 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2023-08-30 10:58:53,239 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 119 flow [2023-08-30 10:58:53,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 289.125) internal successors, (2313), 8 states have internal predecessors, (2313), 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 10:58:53,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:58:53,240 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2023-08-30 10:58:53,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-30 10:58:53,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:58:53,445 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 10:58:53,446 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:58:53,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1654367495, now seen corresponding path program 1 times [2023-08-30 10:58:53,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:58:53,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512940605] [2023-08-30 10:58:53,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:53,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:58:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:53,528 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-30 10:58:53,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:58:53,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512940605] [2023-08-30 10:58:53,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512940605] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 10:58:53,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163811083] [2023-08-30 10:58:53,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:53,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:58:53,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:58:53,531 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 10:58:53,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-30 10:58:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:53,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 10:58:53,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 10:58:53,651 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-30 10:58:53,651 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 10:58:53,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163811083] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:58:53,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 10:58:53,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2023-08-30 10:58:53,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113121612] [2023-08-30 10:58:53,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:58:53,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:58:53,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:58:53,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:58:53,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-30 10:58:53,668 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 705 [2023-08-30 10:58:53,670 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 28 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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 10:58:53,670 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:58:53,670 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 705 [2023-08-30 10:58:53,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:58:53,802 INFO L130 PetriNetUnfolder]: 435/766 cut-off events. [2023-08-30 10:58:53,802 INFO L131 PetriNetUnfolder]: For 410/410 co-relation queries the response was YES. [2023-08-30 10:58:53,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1945 conditions, 766 events. 435/766 cut-off events. For 410/410 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3517 event pairs, 358 based on Foata normal form. 0/518 useless extension candidates. Maximal degree in co-relation 1929. Up to 766 conditions per place. [2023-08-30 10:58:53,811 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-08-30 10:58:53,811 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 26 transitions, 163 flow [2023-08-30 10:58:53,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:58:53,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:58:53,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 907 transitions. [2023-08-30 10:58:53,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42884160756501183 [2023-08-30 10:58:53,814 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 907 transitions. [2023-08-30 10:58:53,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 907 transitions. [2023-08-30 10:58:53,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:58:53,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 907 transitions. [2023-08-30 10:58:53,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 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 10:58:53,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:53,820 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:53,820 INFO L175 Difference]: Start difference. First operand has 43 places, 28 transitions, 119 flow. Second operand 3 states and 907 transitions. [2023-08-30 10:58:53,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 26 transitions, 163 flow [2023-08-30 10:58:53,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 26 transitions, 149 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-08-30 10:58:53,822 INFO L231 Difference]: Finished difference. Result has 38 places, 26 transitions, 99 flow [2023-08-30 10:58:53,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=38, PETRI_TRANSITIONS=26} [2023-08-30 10:58:53,822 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2023-08-30 10:58:53,822 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 26 transitions, 99 flow [2023-08-30 10:58:53,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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 10:58:53,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:58:53,823 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2023-08-30 10:58:53,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-30 10:58:54,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:58:54,030 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 10:58:54,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:58:54,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1654367492, now seen corresponding path program 2 times [2023-08-30 10:58:54,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:58:54,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991295857] [2023-08-30 10:58:54,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:54,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:58:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:54,117 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-30 10:58:54,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:58:54,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991295857] [2023-08-30 10:58:54,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991295857] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 10:58:54,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955176234] [2023-08-30 10:58:54,118 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 10:58:54,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:58:54,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:58:54,121 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 10:58:54,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-30 10:58:54,214 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 10:58:54,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 10:58:54,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-30 10:58:54,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 10:58:54,231 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-30 10:58:54,232 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 10:58:54,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955176234] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:58:54,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 10:58:54,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2023-08-30 10:58:54,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535011879] [2023-08-30 10:58:54,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:58:54,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:58:54,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:58:54,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:58:54,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-30 10:58:54,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 705 [2023-08-30 10:58:54,249 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 26 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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 10:58:54,249 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:58:54,250 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 705 [2023-08-30 10:58:54,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:58:54,349 INFO L130 PetriNetUnfolder]: 335/594 cut-off events. [2023-08-30 10:58:54,350 INFO L131 PetriNetUnfolder]: For 192/192 co-relation queries the response was YES. [2023-08-30 10:58:54,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1424 conditions, 594 events. 335/594 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2533 event pairs, 266 based on Foata normal form. 0/438 useless extension candidates. Maximal degree in co-relation 1408. Up to 594 conditions per place. [2023-08-30 10:58:54,353 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-30 10:58:54,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 24 transitions, 139 flow [2023-08-30 10:58:54,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:58:54,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:58:54,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 905 transitions. [2023-08-30 10:58:54,356 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42789598108747046 [2023-08-30 10:58:54,356 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 905 transitions. [2023-08-30 10:58:54,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 905 transitions. [2023-08-30 10:58:54,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:58:54,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 905 transitions. [2023-08-30 10:58:54,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.6666666666667) internal successors, (905), 3 states have internal predecessors, (905), 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 10:58:54,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:54,362 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:54,362 INFO L175 Difference]: Start difference. First operand has 38 places, 26 transitions, 99 flow. Second operand 3 states and 905 transitions. [2023-08-30 10:58:54,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 24 transitions, 139 flow [2023-08-30 10:58:54,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 24 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:58:54,363 INFO L231 Difference]: Finished difference. Result has 37 places, 24 transitions, 92 flow [2023-08-30 10:58:54,363 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=37, PETRI_TRANSITIONS=24} [2023-08-30 10:58:54,364 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2023-08-30 10:58:54,364 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 24 transitions, 92 flow [2023-08-30 10:58:54,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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 10:58:54,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:58:54,365 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2023-08-30 10:58:54,372 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-08-30 10:58:54,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:58:54,570 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 10:58:54,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:58:54,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1654367496, now seen corresponding path program 1 times [2023-08-30 10:58:54,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:58:54,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925155379] [2023-08-30 10:58:54,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:54,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:58:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:54,679 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-30 10:58:54,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:58:54,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925155379] [2023-08-30 10:58:54,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925155379] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 10:58:54,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923666646] [2023-08-30 10:58:54,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:54,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 10:58:54,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:58:54,681 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 10:58:54,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-30 10:58:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:54,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-30 10:58:54,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 10:58:54,798 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-30 10:58:54,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 10:58:54,860 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-30 10:58:54,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923666646] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 10:58:54,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 10:58:54,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2023-08-30 10:58:54,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813141121] [2023-08-30 10:58:54,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 10:58:54,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 10:58:54,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:58:54,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 10:58:54,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 10:58:54,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 705 [2023-08-30 10:58:54,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 24 transitions, 92 flow. Second operand has 6 states, 6 states have (on average 294.6666666666667) internal successors, (1768), 6 states have internal predecessors, (1768), 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 10:58:54,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:58:54,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 705 [2023-08-30 10:58:54,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:58:55,053 INFO L130 PetriNetUnfolder]: 423/750 cut-off events. [2023-08-30 10:58:55,053 INFO L131 PetriNetUnfolder]: For 94/94 co-relation queries the response was YES. [2023-08-30 10:58:55,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1789 conditions, 750 events. 423/750 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3623 event pairs, 114 based on Foata normal form. 0/558 useless extension candidates. Maximal degree in co-relation 1772. Up to 283 conditions per place. [2023-08-30 10:58:55,057 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 54 selfloop transitions, 4 changer transitions 0/58 dead transitions. [2023-08-30 10:58:55,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 58 transitions, 286 flow [2023-08-30 10:58:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 10:58:55,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 10:58:55,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1520 transitions. [2023-08-30 10:58:55,061 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43120567375886526 [2023-08-30 10:58:55,061 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1520 transitions. [2023-08-30 10:58:55,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1520 transitions. [2023-08-30 10:58:55,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:58:55,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1520 transitions. [2023-08-30 10:58:55,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 304.0) internal successors, (1520), 5 states have internal predecessors, (1520), 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 10:58:55,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 705.0) internal successors, (4230), 6 states have internal predecessors, (4230), 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 10:58:55,068 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 705.0) internal successors, (4230), 6 states have internal predecessors, (4230), 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 10:58:55,069 INFO L175 Difference]: Start difference. First operand has 37 places, 24 transitions, 92 flow. Second operand 5 states and 1520 transitions. [2023-08-30 10:58:55,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 58 transitions, 286 flow [2023-08-30 10:58:55,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 58 transitions, 285 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:58:55,070 INFO L231 Difference]: Finished difference. Result has 41 places, 25 transitions, 111 flow [2023-08-30 10:58:55,071 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=111, PETRI_PLACES=41, PETRI_TRANSITIONS=25} [2023-08-30 10:58:55,071 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2023-08-30 10:58:55,071 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 25 transitions, 111 flow [2023-08-30 10:58:55,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 294.6666666666667) internal successors, (1768), 6 states have internal predecessors, (1768), 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 10:58:55,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:58:55,072 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:58:55,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-30 10:58:55,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-08-30 10:58:55,278 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 10:58:55,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:58:55,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1655049987, now seen corresponding path program 1 times [2023-08-30 10:58:55,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:58:55,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788728677] [2023-08-30 10:58:55,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:55,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:58:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:55,318 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-30 10:58:55,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:58:55,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788728677] [2023-08-30 10:58:55,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788728677] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:58:55,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:58:55,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 10:58:55,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789619724] [2023-08-30 10:58:55,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:58:55,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:58:55,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:58:55,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:58:55,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:58:55,330 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 705 [2023-08-30 10:58:55,331 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 25 transitions, 111 flow. Second operand has 3 states, 3 states have (on average 295.6666666666667) internal successors, (887), 3 states have internal predecessors, (887), 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 10:58:55,331 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:58:55,331 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 705 [2023-08-30 10:58:55,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:58:55,516 INFO L130 PetriNetUnfolder]: 575/1014 cut-off events. [2023-08-30 10:58:55,516 INFO L131 PetriNetUnfolder]: For 768/768 co-relation queries the response was YES. [2023-08-30 10:58:55,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2622 conditions, 1014 events. 575/1014 cut-off events. For 768/768 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4963 event pairs, 342 based on Foata normal form. 0/758 useless extension candidates. Maximal degree in co-relation 2604. Up to 751 conditions per place. [2023-08-30 10:58:55,521 INFO L137 encePairwiseOnDemand]: 701/705 looper letters, 35 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-08-30 10:58:55,522 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 37 transitions, 244 flow [2023-08-30 10:58:55,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:58:55,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:58:55,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 908 transitions. [2023-08-30 10:58:55,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4293144208037825 [2023-08-30 10:58:55,524 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 908 transitions. [2023-08-30 10:58:55,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 908 transitions. [2023-08-30 10:58:55,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:58:55,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 908 transitions. [2023-08-30 10:58:55,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.6666666666667) internal successors, (908), 3 states have internal predecessors, (908), 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 10:58:55,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:55,530 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:55,530 INFO L175 Difference]: Start difference. First operand has 41 places, 25 transitions, 111 flow. Second operand 3 states and 908 transitions. [2023-08-30 10:58:55,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 37 transitions, 244 flow [2023-08-30 10:58:55,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 224 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-30 10:58:55,532 INFO L231 Difference]: Finished difference. Result has 41 places, 26 transitions, 115 flow [2023-08-30 10:58:55,532 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=115, PETRI_PLACES=41, PETRI_TRANSITIONS=26} [2023-08-30 10:58:55,532 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2023-08-30 10:58:55,532 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 26 transitions, 115 flow [2023-08-30 10:58:55,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.6666666666667) internal successors, (887), 3 states have internal predecessors, (887), 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 10:58:55,533 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:58:55,533 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1] [2023-08-30 10:58:55,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 10:58:55,533 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 10:58:55,534 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:58:55,534 INFO L85 PathProgramCache]: Analyzing trace with hash 254216001, now seen corresponding path program 2 times [2023-08-30 10:58:55,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:58:55,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111724491] [2023-08-30 10:58:55,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:55,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:58:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:55,623 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-08-30 10:58:55,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:58:55,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111724491] [2023-08-30 10:58:55,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111724491] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:58:55,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:58:55,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:58:55,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436724763] [2023-08-30 10:58:55,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:58:55,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:58:55,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:58:55,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:58:55,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:58:55,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 705 [2023-08-30 10:58:55,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 26 transitions, 115 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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 10:58:55,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:58:55,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 705 [2023-08-30 10:58:55,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:58:55,809 INFO L130 PetriNetUnfolder]: 459/814 cut-off events. [2023-08-30 10:58:55,810 INFO L131 PetriNetUnfolder]: For 534/534 co-relation queries the response was YES. [2023-08-30 10:58:55,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2189 conditions, 814 events. 459/814 cut-off events. For 534/534 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3699 event pairs, 378 based on Foata normal form. 0/762 useless extension candidates. Maximal degree in co-relation 2170. Up to 814 conditions per place. [2023-08-30 10:58:55,813 INFO L137 encePairwiseOnDemand]: 702/705 looper letters, 22 selfloop transitions, 1 changer transitions 1/24 dead transitions. [2023-08-30 10:58:55,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 24 transitions, 151 flow [2023-08-30 10:58:55,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:58:55,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:58:55,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 903 transitions. [2023-08-30 10:58:55,816 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4269503546099291 [2023-08-30 10:58:55,816 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 903 transitions. [2023-08-30 10:58:55,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 903 transitions. [2023-08-30 10:58:55,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:58:55,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 903 transitions. [2023-08-30 10:58:55,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 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 10:58:55,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:55,821 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:55,822 INFO L175 Difference]: Start difference. First operand has 41 places, 26 transitions, 115 flow. Second operand 3 states and 903 transitions. [2023-08-30 10:58:55,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 24 transitions, 151 flow [2023-08-30 10:58:55,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 24 transitions, 149 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:58:55,823 INFO L231 Difference]: Finished difference. Result has 40 places, 23 transitions, 101 flow [2023-08-30 10:58:55,823 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=40, PETRI_TRANSITIONS=23} [2023-08-30 10:58:55,824 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2023-08-30 10:58:55,824 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 23 transitions, 101 flow [2023-08-30 10:58:55,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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 10:58:55,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:58:55,825 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:58:55,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-30 10:58:55,825 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-30 10:58:55,825 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:58:55,825 INFO L85 PathProgramCache]: Analyzing trace with hash 233059932, now seen corresponding path program 1 times [2023-08-30 10:58:55,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:58:55,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274472052] [2023-08-30 10:58:55,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:58:55,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:58:55,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:58:55,876 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-30 10:58:55,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:58:55,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274472052] [2023-08-30 10:58:55,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274472052] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:58:55,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:58:55,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 10:58:55,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277530813] [2023-08-30 10:58:55,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:58:55,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:58:55,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:58:55,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:58:55,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:58:55,888 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 705 [2023-08-30 10:58:55,889 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 23 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 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 10:58:55,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:58:55,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 705 [2023-08-30 10:58:55,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:58:55,963 INFO L130 PetriNetUnfolder]: 249/448 cut-off events. [2023-08-30 10:58:55,963 INFO L131 PetriNetUnfolder]: For 248/248 co-relation queries the response was YES. [2023-08-30 10:58:55,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1246 conditions, 448 events. 249/448 cut-off events. For 248/248 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1759 event pairs, 180 based on Foata normal form. 0/448 useless extension candidates. Maximal degree in co-relation 1226. Up to 448 conditions per place. [2023-08-30 10:58:55,965 INFO L137 encePairwiseOnDemand]: 703/705 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2023-08-30 10:58:55,965 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 22 transitions, 141 flow [2023-08-30 10:58:55,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:58:55,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:58:55,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 894 transitions. [2023-08-30 10:58:55,968 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4226950354609929 [2023-08-30 10:58:55,968 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 894 transitions. [2023-08-30 10:58:55,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 894 transitions. [2023-08-30 10:58:55,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:58:55,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 894 transitions. [2023-08-30 10:58:55,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 298.0) internal successors, (894), 3 states have internal predecessors, (894), 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 10:58:55,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:55,973 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 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 10:58:55,973 INFO L175 Difference]: Start difference. First operand has 40 places, 23 transitions, 101 flow. Second operand 3 states and 894 transitions. [2023-08-30 10:58:55,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 22 transitions, 141 flow [2023-08-30 10:58:55,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 22 transitions, 138 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 10:58:55,975 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2023-08-30 10:58:55,975 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2023-08-30 10:58:55,975 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2023-08-30 10:58:55,976 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2023-08-30 10:58:55,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 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 10:58:55,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 38 remaining) [2023-08-30 10:58:55,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 38 remaining) [2023-08-30 10:58:55,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 38 remaining) [2023-08-30 10:58:55,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 38 remaining) [2023-08-30 10:58:55,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 38 remaining) [2023-08-30 10:58:55,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 38 remaining) [2023-08-30 10:58:55,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 38 remaining) [2023-08-30 10:58:55,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 38 remaining) [2023-08-30 10:58:55,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 38 remaining) [2023-08-30 10:58:55,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 38 remaining) [2023-08-30 10:58:55,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 38 remaining) [2023-08-30 10:58:55,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 38 remaining) [2023-08-30 10:58:55,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 38 remaining) [2023-08-30 10:58:55,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 38 remaining) [2023-08-30 10:58:55,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 38 remaining) [2023-08-30 10:58:55,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 38 remaining) [2023-08-30 10:58:55,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 38 remaining) [2023-08-30 10:58:55,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 38 remaining) [2023-08-30 10:58:55,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 38 remaining) [2023-08-30 10:58:55,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 38 remaining) [2023-08-30 10:58:55,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 38 remaining) [2023-08-30 10:58:55,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 38 remaining) [2023-08-30 10:58:55,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 38 remaining) [2023-08-30 10:58:55,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 38 remaining) [2023-08-30 10:58:55,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 38 remaining) [2023-08-30 10:58:55,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 38 remaining) [2023-08-30 10:58:55,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 38 remaining) [2023-08-30 10:58:55,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 38 remaining) [2023-08-30 10:58:55,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 38 remaining) [2023-08-30 10:58:55,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 38 remaining) [2023-08-30 10:58:55,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 38 remaining) [2023-08-30 10:58:55,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 38 remaining) [2023-08-30 10:58:55,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 38 remaining) [2023-08-30 10:58:55,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 38 remaining) [2023-08-30 10:58:55,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 38 remaining) [2023-08-30 10:58:55,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 38 remaining) [2023-08-30 10:58:55,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 38 remaining) [2023-08-30 10:58:55,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 38 remaining) [2023-08-30 10:58:55,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-30 10:58:55,985 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:58:55,989 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 10:58:55,989 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 10:58:55,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:58:55 BasicIcfg [2023-08-30 10:58:55,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 10:58:55,992 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 10:58:55,992 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 10:58:55,992 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 10:58:55,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:58:35" (3/4) ... [2023-08-30 10:58:55,994 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 10:58:55,998 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-30 10:58:55,999 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-30 10:58:56,004 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-30 10:58:56,004 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 10:58:56,004 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 10:58:56,005 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 10:58:56,047 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 10:58:56,047 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 10:58:56,047 INFO L158 Benchmark]: Toolchain (without parser) took 22010.22ms. Allocated memory was 79.7MB in the beginning and 396.4MB in the end (delta: 316.7MB). Free memory was 57.7MB in the beginning and 191.8MB in the end (delta: -134.1MB). Peak memory consumption was 185.5MB. Max. memory is 16.1GB. [2023-08-30 10:58:56,048 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory was 36.4MB in the beginning and 36.4MB in the end (delta: 57.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 10:58:56,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.35ms. Allocated memory is still 79.7MB. Free memory was 57.6MB in the beginning and 45.3MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 10:58:56,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.24ms. Allocated memory is still 79.7MB. Free memory was 45.3MB in the beginning and 42.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 10:58:56,049 INFO L158 Benchmark]: Boogie Preprocessor took 47.13ms. Allocated memory is still 79.7MB. Free memory was 42.9MB in the beginning and 41.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 10:58:56,049 INFO L158 Benchmark]: RCFGBuilder took 709.95ms. Allocated memory is still 79.7MB. Free memory was 40.8MB in the beginning and 45.0MB in the end (delta: -4.2MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2023-08-30 10:58:56,049 INFO L158 Benchmark]: TraceAbstraction took 20810.11ms. Allocated memory was 79.7MB in the beginning and 396.4MB in the end (delta: 316.7MB). Free memory was 44.6MB in the beginning and 196.0MB in the end (delta: -151.4MB). Peak memory consumption was 167.9MB. Max. memory is 16.1GB. [2023-08-30 10:58:56,050 INFO L158 Benchmark]: Witness Printer took 55.48ms. Allocated memory is still 396.4MB. Free memory was 196.0MB in the beginning and 191.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 10:58:56,052 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory was 36.4MB in the beginning and 36.4MB in the end (delta: 57.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.35ms. Allocated memory is still 79.7MB. Free memory was 57.6MB in the beginning and 45.3MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.24ms. Allocated memory is still 79.7MB. Free memory was 45.3MB in the beginning and 42.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.13ms. Allocated memory is still 79.7MB. Free memory was 42.9MB in the beginning and 41.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 709.95ms. Allocated memory is still 79.7MB. Free memory was 40.8MB in the beginning and 45.0MB in the end (delta: -4.2MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * TraceAbstraction took 20810.11ms. Allocated memory was 79.7MB in the beginning and 396.4MB in the end (delta: 316.7MB). Free memory was 44.6MB in the beginning and 196.0MB in the end (delta: -151.4MB). Peak memory consumption was 167.9MB. Max. memory is 16.1GB. * Witness Printer took 55.48ms. Allocated memory is still 396.4MB. Free memory was 196.0MB in the beginning and 191.8MB 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: 12.6s, 286 PlacesBefore, 40 PlacesAfterwards, 301 TransitionsBefore, 36 TransitionsAfterwards, 18512 CoEnabledTransitionPairs, 8 FixpointIterations, 106 TrivialSequentialCompositions, 202 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 51 ConcurrentYvCompositions, 19 ChoiceCompositions, 387 TotalNumberOfCompositions, 18426 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18252, independent: 18238, independent conditional: 0, independent unconditional: 18238, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11036, independent: 11030, independent conditional: 0, independent unconditional: 11030, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 18252, independent: 7208, independent conditional: 0, independent unconditional: 7208, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 11036, unknown conditional: 0, unknown unconditional: 11036] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 130]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 130]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 131]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 131]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 132]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 132]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 130]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 130]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 131]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 131]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 132]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 132]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 123]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 123]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 460 locations, 38 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: 20.6s, OverallIterations: 15, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 878 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 643 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1036 IncrementalHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 46 mSDtfsCounter, 1036 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 58 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=9, InterpolantAutomatonStates: 55, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 160 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 376 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1166 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 26 InterpolantComputations, 12 PerfectInterpolantSequences, 96/122 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 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 10:58:56,087 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