./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix017.oepc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix017.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a97b4f259d777d70ea3df756a2f94b2605f52fea9df0872361c6911477a44448 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 12:57:31,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 12:57:31,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 12:57:31,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 12:57:31,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 12:57:31,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 12:57:31,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 12:57:31,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 12:57:31,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 12:57:31,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 12:57:31,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 12:57:31,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 12:57:31,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 12:57:31,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 12:57:31,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 12:57:31,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 12:57:31,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 12:57:31,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 12:57:31,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 12:57:31,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 12:57:31,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 12:57:31,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 12:57:31,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 12:57:31,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 12:57:31,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 12:57:31,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 12:57:31,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 12:57:31,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 12:57:31,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 12:57:31,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 12:57:31,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 12:57:31,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 12:57:31,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 12:57:31,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 12:57:31,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 12:57:31,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 12:57:31,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 12:57:31,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 12:57:31,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 12:57:31,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 12:57:31,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 12:57:31,286 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 12:57:31,310 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 12:57:31,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 12:57:31,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 12:57:31,311 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 12:57:31,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 12:57:31,312 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 12:57:31,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 12:57:31,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 12:57:31,313 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 12:57:31,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 12:57:31,313 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 12:57:31,313 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 12:57:31,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 12:57:31,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 12:57:31,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 12:57:31,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 12:57:31,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 12:57:31,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 12:57:31,314 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 12:57:31,314 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 12:57:31,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 12:57:31,315 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 12:57:31,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 12:57:31,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 12:57:31,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 12:57:31,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 12:57:31,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:57:31,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 12:57:31,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 12:57:31,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 12:57:31,316 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 12:57:31,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 12:57:31,316 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 12:57:31,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 12:57:31,317 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 12:57:31,317 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 12:57:31,317 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 12:57:31,317 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a97b4f259d777d70ea3df756a2f94b2605f52fea9df0872361c6911477a44448 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 12:57:31,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 12:57:31,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 12:57:31,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 12:57:31,535 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 12:57:31,535 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 12:57:31,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix017.oepc.i [2023-08-30 12:57:32,503 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 12:57:32,695 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 12:57:32,695 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix017.oepc.i [2023-08-30 12:57:32,703 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09f0d2cfe/0fb9af944a53447385d62c3266b3e700/FLAG32c0ce8a8 [2023-08-30 12:57:32,713 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09f0d2cfe/0fb9af944a53447385d62c3266b3e700 [2023-08-30 12:57:32,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 12:57:32,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 12:57:32,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 12:57:32,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 12:57:32,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 12:57:32,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:57:32" (1/1) ... [2023-08-30 12:57:32,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4219da2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:32, skipping insertion in model container [2023-08-30 12:57:32,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:57:32" (1/1) ... [2023-08-30 12:57:32,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 12:57:32,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 12:57:32,840 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix017.oepc.i[945,958] [2023-08-30 12:57:33,014 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:57:33,024 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 12:57:33,032 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix017.oepc.i[945,958] [2023-08-30 12:57:33,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:57:33,113 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 12:57:33,114 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 12:57:33,118 INFO L208 MainTranslator]: Completed translation [2023-08-30 12:57:33,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:33 WrapperNode [2023-08-30 12:57:33,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 12:57:33,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 12:57:33,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 12:57:33,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 12:57:33,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:33" (1/1) ... [2023-08-30 12:57:33,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:33" (1/1) ... [2023-08-30 12:57:33,179 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 148 [2023-08-30 12:57:33,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 12:57:33,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 12:57:33,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 12:57:33,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 12:57:33,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:33" (1/1) ... [2023-08-30 12:57:33,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:33" (1/1) ... [2023-08-30 12:57:33,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:33" (1/1) ... [2023-08-30 12:57:33,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:33" (1/1) ... [2023-08-30 12:57:33,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:33" (1/1) ... [2023-08-30 12:57:33,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:33" (1/1) ... [2023-08-30 12:57:33,221 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:33" (1/1) ... [2023-08-30 12:57:33,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:33" (1/1) ... [2023-08-30 12:57:33,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 12:57:33,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 12:57:33,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 12:57:33,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 12:57:33,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:33" (1/1) ... [2023-08-30 12:57:33,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:57:33,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 12:57:33,254 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 12:57:33,260 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 12:57:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 12:57:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 12:57:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 12:57:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 12:57:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 12:57:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 12:57:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 12:57:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 12:57:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 12:57:33,293 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 12:57:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 12:57:33,293 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 12:57:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 12:57:33,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 12:57:33,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 12:57:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 12:57:33,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 12:57:33,295 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 12:57:33,423 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 12:57:33,424 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 12:57:33,681 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 12:57:33,800 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 12:57:33,800 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 12:57:33,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:57:33 BoogieIcfgContainer [2023-08-30 12:57:33,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 12:57:33,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 12:57:33,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 12:57:33,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 12:57:33,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 12:57:32" (1/3) ... [2023-08-30 12:57:33,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151cbaf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:57:33, skipping insertion in model container [2023-08-30 12:57:33,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:57:33" (2/3) ... [2023-08-30 12:57:33,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151cbaf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:57:33, skipping insertion in model container [2023-08-30 12:57:33,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:57:33" (3/3) ... [2023-08-30 12:57:33,813 INFO L112 eAbstractionObserver]: Analyzing ICFG mix017.oepc.i [2023-08-30 12:57:33,818 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 12:57:33,823 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 12:57:33,824 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 12:57:33,824 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 12:57:33,864 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 12:57:33,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 138 transitions, 296 flow [2023-08-30 12:57:33,961 INFO L130 PetriNetUnfolder]: 2/134 cut-off events. [2023-08-30 12:57:33,962 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:57:33,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 134 events. 2/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2023-08-30 12:57:33,966 INFO L82 GeneralOperation]: Start removeDead. Operand has 149 places, 138 transitions, 296 flow [2023-08-30 12:57:33,970 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 134 transitions, 280 flow [2023-08-30 12:57:33,972 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 12:57:33,978 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 134 transitions, 280 flow [2023-08-30 12:57:33,980 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 134 transitions, 280 flow [2023-08-30 12:57:33,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 134 transitions, 280 flow [2023-08-30 12:57:33,995 INFO L130 PetriNetUnfolder]: 2/134 cut-off events. [2023-08-30 12:57:33,995 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:57:33,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 134 events. 2/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2023-08-30 12:57:33,998 INFO L119 LiptonReduction]: Number of co-enabled transitions 4002 [2023-08-30 12:57:37,125 INFO L134 LiptonReduction]: Checked pairs total: 14887 [2023-08-30 12:57:37,125 INFO L136 LiptonReduction]: Total number of compositions: 107 [2023-08-30 12:57:37,135 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 12:57:37,139 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;@7d003e7e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 12:57:37,139 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 12:57:37,143 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 12:57:37,143 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:57:37,143 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:57:37,144 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 12:57:37,144 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 12:57:37,147 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:57:37,147 INFO L85 PathProgramCache]: Analyzing trace with hash 258346309, now seen corresponding path program 1 times [2023-08-30 12:57:37,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:57:37,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657729883] [2023-08-30 12:57:37,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:57:37,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:57:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:57:37,358 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 12:57:37,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:57:37,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657729883] [2023-08-30 12:57:37,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657729883] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:57:37,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:57:37,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 12:57:37,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738589461] [2023-08-30 12:57:37,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:57:37,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 12:57:37,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:57:37,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 12:57:37,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 12:57:37,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 245 [2023-08-30 12:57:37,416 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 12:57:37,416 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:57:37,416 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 245 [2023-08-30 12:57:37,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:57:38,545 INFO L130 PetriNetUnfolder]: 9717/13532 cut-off events. [2023-08-30 12:57:38,545 INFO L131 PetriNetUnfolder]: For 123/123 co-relation queries the response was YES. [2023-08-30 12:57:38,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27306 conditions, 13532 events. 9717/13532 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 568. Compared 74908 event pairs, 2763 based on Foata normal form. 0/10171 useless extension candidates. Maximal degree in co-relation 27294. Up to 11755 conditions per place. [2023-08-30 12:57:38,611 INFO L137 encePairwiseOnDemand]: 231/245 looper letters, 49 selfloop transitions, 5 changer transitions 0/58 dead transitions. [2023-08-30 12:57:38,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 58 transitions, 245 flow [2023-08-30 12:57:38,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 12:57:38,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 12:57:38,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2023-08-30 12:57:38,620 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5401360544217687 [2023-08-30 12:57:38,621 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2023-08-30 12:57:38,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2023-08-30 12:57:38,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:57:38,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2023-08-30 12:57:38,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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 12:57:38,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 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 12:57:38,628 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 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 12:57:38,630 INFO L175 Difference]: Start difference. First operand has 49 places, 37 transitions, 86 flow. Second operand 3 states and 397 transitions. [2023-08-30 12:57:38,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 58 transitions, 245 flow [2023-08-30 12:57:38,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 58 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 12:57:38,634 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 127 flow [2023-08-30 12:57:38,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-08-30 12:57:38,638 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2023-08-30 12:57:38,638 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 127 flow [2023-08-30 12:57:38,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 12:57:38,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:57:38,639 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:57:38,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 12:57:38,640 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 12:57:38,640 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:57:38,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1406048292, now seen corresponding path program 1 times [2023-08-30 12:57:38,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:57:38,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993328084] [2023-08-30 12:57:38,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:57:38,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:57:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:57:38,737 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 12:57:38,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:57:38,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993328084] [2023-08-30 12:57:38,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993328084] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:57:38,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:57:38,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:57:38,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857794680] [2023-08-30 12:57:38,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:57:38,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 12:57:38,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:57:38,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 12:57:38,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 12:57:38,749 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 245 [2023-08-30 12:57:38,750 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 127 flow. Second operand has 4 states, 4 states have (on average 113.5) internal successors, (454), 4 states have internal predecessors, (454), 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 12:57:38,750 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:57:38,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 245 [2023-08-30 12:57:38,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:57:39,501 INFO L130 PetriNetUnfolder]: 6207/8630 cut-off events. [2023-08-30 12:57:39,501 INFO L131 PetriNetUnfolder]: For 477/477 co-relation queries the response was YES. [2023-08-30 12:57:39,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20937 conditions, 8630 events. 6207/8630 cut-off events. For 477/477 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 45321 event pairs, 1715 based on Foata normal form. 0/7443 useless extension candidates. Maximal degree in co-relation 20926. Up to 6852 conditions per place. [2023-08-30 12:57:39,541 INFO L137 encePairwiseOnDemand]: 236/245 looper letters, 45 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2023-08-30 12:57:39,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 54 transitions, 253 flow [2023-08-30 12:57:39,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 12:57:39,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 12:57:39,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 498 transitions. [2023-08-30 12:57:39,546 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5081632653061224 [2023-08-30 12:57:39,546 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 498 transitions. [2023-08-30 12:57:39,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 498 transitions. [2023-08-30 12:57:39,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:57:39,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 498 transitions. [2023-08-30 12:57:39,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 124.5) internal successors, (498), 4 states have internal predecessors, (498), 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 12:57:39,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 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 12:57:39,551 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 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 12:57:39,551 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 127 flow. Second operand 4 states and 498 transitions. [2023-08-30 12:57:39,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 54 transitions, 253 flow [2023-08-30 12:57:39,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 54 transitions, 248 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 12:57:39,553 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 116 flow [2023-08-30 12:57:39,553 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=116, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2023-08-30 12:57:39,554 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2023-08-30 12:57:39,554 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 116 flow [2023-08-30 12:57:39,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.5) internal successors, (454), 4 states have internal predecessors, (454), 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 12:57:39,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:57:39,555 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:57:39,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 12:57:39,555 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 12:57:39,557 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:57:39,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1406048293, now seen corresponding path program 1 times [2023-08-30 12:57:39,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:57:39,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436369700] [2023-08-30 12:57:39,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:57:39,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:57:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:57:39,675 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 12:57:39,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:57:39,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436369700] [2023-08-30 12:57:39,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436369700] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:57:39,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:57:39,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:57:39,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45365121] [2023-08-30 12:57:39,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:57:39,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 12:57:39,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:57:39,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 12:57:39,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 12:57:39,687 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 245 [2023-08-30 12:57:39,688 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 113.5) internal successors, (454), 4 states have internal predecessors, (454), 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 12:57:39,688 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:57:39,688 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 245 [2023-08-30 12:57:39,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:57:40,323 INFO L130 PetriNetUnfolder]: 4260/5961 cut-off events. [2023-08-30 12:57:40,324 INFO L131 PetriNetUnfolder]: For 1562/1562 co-relation queries the response was YES. [2023-08-30 12:57:40,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14266 conditions, 5961 events. 4260/5961 cut-off events. For 1562/1562 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 30230 event pairs, 1261 based on Foata normal form. 0/5690 useless extension candidates. Maximal degree in co-relation 14254. Up to 2277 conditions per place. [2023-08-30 12:57:40,342 INFO L137 encePairwiseOnDemand]: 236/245 looper letters, 61 selfloop transitions, 9 changer transitions 0/74 dead transitions. [2023-08-30 12:57:40,342 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 74 transitions, 350 flow [2023-08-30 12:57:40,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 12:57:40,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 12:57:40,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 518 transitions. [2023-08-30 12:57:40,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5285714285714286 [2023-08-30 12:57:40,344 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 518 transitions. [2023-08-30 12:57:40,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 518 transitions. [2023-08-30 12:57:40,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:57:40,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 518 transitions. [2023-08-30 12:57:40,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 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 12:57:40,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 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 12:57:40,347 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 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 12:57:40,348 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 116 flow. Second operand 4 states and 518 transitions. [2023-08-30 12:57:40,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 74 transitions, 350 flow [2023-08-30 12:57:40,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 74 transitions, 344 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 12:57:40,350 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 168 flow [2023-08-30 12:57:40,350 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-08-30 12:57:40,351 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2023-08-30 12:57:40,351 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 168 flow [2023-08-30 12:57:40,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.5) internal successors, (454), 4 states have internal predecessors, (454), 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 12:57:40,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:57:40,352 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:57:40,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 12:57:40,352 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 12:57:40,353 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:57:40,353 INFO L85 PathProgramCache]: Analyzing trace with hash -127942095, now seen corresponding path program 1 times [2023-08-30 12:57:40,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:57:40,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799515427] [2023-08-30 12:57:40,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:57:40,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:57:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:57:40,463 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 12:57:40,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:57:40,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799515427] [2023-08-30 12:57:40,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799515427] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:57:40,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:57:40,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 12:57:40,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18118749] [2023-08-30 12:57:40,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:57:40,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 12:57:40,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:57:40,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 12:57:40,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 12:57:40,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 245 [2023-08-30 12:57:40,476 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 168 flow. Second operand has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 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 12:57:40,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:57:40,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 245 [2023-08-30 12:57:40,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:57:41,002 INFO L130 PetriNetUnfolder]: 3939/5454 cut-off events. [2023-08-30 12:57:41,003 INFO L131 PetriNetUnfolder]: For 3255/3255 co-relation queries the response was YES. [2023-08-30 12:57:41,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14879 conditions, 5454 events. 3939/5454 cut-off events. For 3255/3255 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 27202 event pairs, 1217 based on Foata normal form. 0/5393 useless extension candidates. Maximal degree in co-relation 14866. Up to 2277 conditions per place. [2023-08-30 12:57:41,022 INFO L137 encePairwiseOnDemand]: 236/245 looper letters, 71 selfloop transitions, 13 changer transitions 4/92 dead transitions. [2023-08-30 12:57:41,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 92 transitions, 476 flow [2023-08-30 12:57:41,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 12:57:41,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 12:57:41,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 647 transitions. [2023-08-30 12:57:41,027 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5281632653061225 [2023-08-30 12:57:41,027 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 647 transitions. [2023-08-30 12:57:41,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 647 transitions. [2023-08-30 12:57:41,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:57:41,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 647 transitions. [2023-08-30 12:57:41,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.4) internal successors, (647), 5 states have internal predecessors, (647), 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 12:57:41,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 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 12:57:41,032 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 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 12:57:41,032 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 168 flow. Second operand 5 states and 647 transitions. [2023-08-30 12:57:41,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 92 transitions, 476 flow [2023-08-30 12:57:41,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 92 transitions, 458 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-30 12:57:41,041 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 192 flow [2023-08-30 12:57:41,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=192, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2023-08-30 12:57:41,042 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2023-08-30 12:57:41,042 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 192 flow [2023-08-30 12:57:41,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 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 12:57:41,043 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:57:41,043 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:57:41,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 12:57:41,043 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 12:57:41,044 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:57:41,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1286290771, now seen corresponding path program 1 times [2023-08-30 12:57:41,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:57:41,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401668807] [2023-08-30 12:57:41,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:57:41,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:57:41,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:57:41,152 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 12:57:41,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:57:41,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401668807] [2023-08-30 12:57:41,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401668807] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:57:41,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:57:41,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 12:57:41,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142771159] [2023-08-30 12:57:41,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:57:41,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 12:57:41,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:57:41,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 12:57:41,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 12:57:41,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 245 [2023-08-30 12:57:41,162 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 114.5) internal successors, (687), 6 states have internal predecessors, (687), 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 12:57:41,162 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:57:41,162 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 245 [2023-08-30 12:57:41,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:57:41,641 INFO L130 PetriNetUnfolder]: 3912/5407 cut-off events. [2023-08-30 12:57:41,642 INFO L131 PetriNetUnfolder]: For 3961/3961 co-relation queries the response was YES. [2023-08-30 12:57:41,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15110 conditions, 5407 events. 3912/5407 cut-off events. For 3961/3961 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 27013 event pairs, 1217 based on Foata normal form. 16/5378 useless extension candidates. Maximal degree in co-relation 15096. Up to 2277 conditions per place. [2023-08-30 12:57:41,650 INFO L137 encePairwiseOnDemand]: 236/245 looper letters, 0 selfloop transitions, 0 changer transitions 84/84 dead transitions. [2023-08-30 12:57:41,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 84 transitions, 428 flow [2023-08-30 12:57:41,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 12:57:41,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 12:57:41,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 750 transitions. [2023-08-30 12:57:41,652 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5102040816326531 [2023-08-30 12:57:41,652 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 750 transitions. [2023-08-30 12:57:41,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 750 transitions. [2023-08-30 12:57:41,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:57:41,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 750 transitions. [2023-08-30 12:57:41,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 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 12:57:41,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 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 12:57:41,657 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 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 12:57:41,657 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 192 flow. Second operand 6 states and 750 transitions. [2023-08-30 12:57:41,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 84 transitions, 428 flow [2023-08-30 12:57:41,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 84 transitions, 373 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 12:57:41,733 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2023-08-30 12:57:41,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2023-08-30 12:57:41,734 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2023-08-30 12:57:41,734 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2023-08-30 12:57:41,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.5) internal successors, (687), 6 states have internal predecessors, (687), 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 12:57:41,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 12:57:41,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 12:57:41,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 12:57:41,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 12:57:41,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 12:57:41,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 12:57:41,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 12:57:41,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 12:57:41,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 12:57:41,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 12:57:41,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 12:57:41,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 12:57:41,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 12:57:41,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 12:57:41,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 12:57:41,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 12:57:41,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 12:57:41,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 12:57:41,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 12:57:41,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 12:57:41,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 12:57:41,739 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 12:57:41,743 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 12:57:41,743 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 12:57:41,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 12:57:41 BasicIcfg [2023-08-30 12:57:41,745 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 12:57:41,745 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 12:57:41,745 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 12:57:41,745 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 12:57:41,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:57:33" (3/4) ... [2023-08-30 12:57:41,747 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 12:57:41,750 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 12:57:41,750 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 12:57:41,750 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 12:57:41,750 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 12:57:41,753 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-08-30 12:57:41,753 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 12:57:41,754 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 12:57:41,754 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 12:57:41,776 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 12:57:41,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 12:57:41,776 INFO L158 Benchmark]: Toolchain (without parser) took 9060.84ms. Allocated memory was 79.7MB in the beginning and 895.5MB in the end (delta: 815.8MB). Free memory was 55.5MB in the beginning and 645.1MB in the end (delta: -589.6MB). Peak memory consumption was 227.3MB. Max. memory is 16.1GB. [2023-08-30 12:57:41,776 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 79.7MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 12:57:41,781 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.74ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 55.2MB in the beginning and 81.9MB in the end (delta: -26.7MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2023-08-30 12:57:41,781 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.17ms. Allocated memory is still 107.0MB. Free memory was 81.9MB in the beginning and 79.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:57:41,782 INFO L158 Benchmark]: Boogie Preprocessor took 43.81ms. Allocated memory is still 107.0MB. Free memory was 79.7MB in the beginning and 77.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:57:41,783 INFO L158 Benchmark]: RCFGBuilder took 577.33ms. Allocated memory is still 107.0MB. Free memory was 77.3MB in the beginning and 67.3MB in the end (delta: 10.0MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2023-08-30 12:57:41,783 INFO L158 Benchmark]: TraceAbstraction took 7941.80ms. Allocated memory was 107.0MB in the beginning and 895.5MB in the end (delta: 788.5MB). Free memory was 66.8MB in the beginning and 648.2MB in the end (delta: -581.5MB). Peak memory consumption was 608.7MB. Max. memory is 16.1GB. [2023-08-30 12:57:41,783 INFO L158 Benchmark]: Witness Printer took 30.77ms. Allocated memory is still 895.5MB. Free memory was 648.2MB in the beginning and 645.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 12:57:41,785 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 79.7MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.74ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 55.2MB in the beginning and 81.9MB in the end (delta: -26.7MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.17ms. Allocated memory is still 107.0MB. Free memory was 81.9MB in the beginning and 79.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.81ms. Allocated memory is still 107.0MB. Free memory was 79.7MB in the beginning and 77.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 577.33ms. Allocated memory is still 107.0MB. Free memory was 77.3MB in the beginning and 67.3MB in the end (delta: 10.0MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * TraceAbstraction took 7941.80ms. Allocated memory was 107.0MB in the beginning and 895.5MB in the end (delta: 788.5MB). Free memory was 66.8MB in the beginning and 648.2MB in the end (delta: -581.5MB). Peak memory consumption was 608.7MB. Max. memory is 16.1GB. * Witness Printer took 30.77ms. Allocated memory is still 895.5MB. Free memory was 648.2MB in the beginning and 645.1MB in the end (delta: 3.2MB). 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: 3.1s, 145 PlacesBefore, 49 PlacesAfterwards, 134 TransitionsBefore, 37 TransitionsAfterwards, 4002 CoEnabledTransitionPairs, 7 FixpointIterations, 44 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 107 TotalNumberOfCompositions, 14887 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4565, independent: 4202, independent conditional: 0, independent unconditional: 4202, dependent: 363, dependent conditional: 0, dependent unconditional: 363, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2070, independent: 2009, independent conditional: 0, independent unconditional: 2009, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4565, independent: 2193, independent conditional: 0, independent unconditional: 2193, dependent: 302, dependent conditional: 0, dependent unconditional: 302, unknown: 2070, unknown conditional: 0, unknown unconditional: 2070] , Statistics on independence cache: Total cache size (in pairs): 203, Positive cache size: 176, Positive conditional cache size: 0, Positive unconditional cache size: 176, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 817]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 817]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 853]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 853]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 182 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 250 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 229 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 454 IncrementalHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 6 mSDtfsCounter, 454 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 12:57:41,811 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