./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c --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/weaver/parallel-ticket-2.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 2c45fd7cfbad1c12ff3ef6a6150c824b5f7de404c290f417bc2834c0c8e69422 --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 15:12:32,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 15:12:32,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 15:12:32,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 15:12:32,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 15:12:32,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 15:12:32,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 15:12:32,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 15:12:32,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 15:12:32,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 15:12:32,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 15:12:32,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 15:12:32,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 15:12:32,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 15:12:32,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 15:12:32,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 15:12:32,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 15:12:32,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 15:12:32,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 15:12:32,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 15:12:32,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 15:12:32,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 15:12:32,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 15:12:32,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 15:12:32,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 15:12:32,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 15:12:32,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 15:12:32,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 15:12:32,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 15:12:32,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 15:12:32,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 15:12:32,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 15:12:32,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 15:12:32,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 15:12:32,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 15:12:32,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 15:12:32,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 15:12:32,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 15:12:32,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 15:12:32,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 15:12:32,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 15:12:32,180 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 15:12:32,212 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 15:12:32,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 15:12:32,214 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 15:12:32,214 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 15:12:32,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 15:12:32,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 15:12:32,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 15:12:32,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 15:12:32,216 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 15:12:32,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 15:12:32,216 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 15:12:32,217 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 15:12:32,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 15:12:32,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 15:12:32,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 15:12:32,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 15:12:32,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 15:12:32,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 15:12:32,218 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 15:12:32,219 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 15:12:32,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 15:12:32,219 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 15:12:32,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 15:12:32,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 15:12:32,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 15:12:32,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 15:12:32,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 15:12:32,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 15:12:32,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 15:12:32,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 15:12:32,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 15:12:32,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 15:12:32,221 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 15:12:32,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 15:12:32,222 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 15:12:32,222 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 15:12:32,222 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 15:12:32,222 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c45fd7cfbad1c12ff3ef6a6150c824b5f7de404c290f417bc2834c0c8e69422 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 15:12:32,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 15:12:32,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 15:12:32,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 15:12:32,543 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 15:12:32,543 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 15:12:32,544 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c [2023-08-30 15:12:33,789 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 15:12:34,021 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 15:12:34,022 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c [2023-08-30 15:12:34,029 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a83ad3e30/98b23b09cccf483e9bf4038dad000f08/FLAGaa2874878 [2023-08-30 15:12:34,042 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a83ad3e30/98b23b09cccf483e9bf4038dad000f08 [2023-08-30 15:12:34,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 15:12:34,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 15:12:34,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 15:12:34,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 15:12:34,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 15:12:34,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:12:34" (1/1) ... [2023-08-30 15:12:34,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b3be651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:34, skipping insertion in model container [2023-08-30 15:12:34,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:12:34" (1/1) ... [2023-08-30 15:12:34,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 15:12:34,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 15:12:34,262 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/parallel-ticket-2.wvr.c[2652,2665] [2023-08-30 15:12:34,268 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 15:12:34,279 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 15:12:34,314 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/parallel-ticket-2.wvr.c[2652,2665] [2023-08-30 15:12:34,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 15:12:34,323 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 15:12:34,324 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 15:12:34,329 INFO L208 MainTranslator]: Completed translation [2023-08-30 15:12:34,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:34 WrapperNode [2023-08-30 15:12:34,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 15:12:34,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 15:12:34,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 15:12:34,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 15:12:34,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:34" (1/1) ... [2023-08-30 15:12:34,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:34" (1/1) ... [2023-08-30 15:12:34,382 INFO L138 Inliner]: procedures = 21, calls = 40, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 132 [2023-08-30 15:12:34,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 15:12:34,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 15:12:34,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 15:12:34,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 15:12:34,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:34" (1/1) ... [2023-08-30 15:12:34,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:34" (1/1) ... [2023-08-30 15:12:34,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:34" (1/1) ... [2023-08-30 15:12:34,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:34" (1/1) ... [2023-08-30 15:12:34,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:34" (1/1) ... [2023-08-30 15:12:34,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:34" (1/1) ... [2023-08-30 15:12:34,420 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:34" (1/1) ... [2023-08-30 15:12:34,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:34" (1/1) ... [2023-08-30 15:12:34,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 15:12:34,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 15:12:34,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 15:12:34,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 15:12:34,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:34" (1/1) ... [2023-08-30 15:12:34,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 15:12:34,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 15:12:34,458 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 15:12:34,468 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 15:12:34,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 15:12:34,490 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 15:12:34,490 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 15:12:34,491 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-30 15:12:34,491 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-30 15:12:34,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 15:12:34,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 15:12:34,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 15:12:34,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 15:12:34,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 15:12:34,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 15:12:34,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 15:12:34,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 15:12:34,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 15:12:34,494 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 15:12:34,576 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 15:12:34,578 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 15:12:34,828 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 15:12:34,960 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 15:12:34,960 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 15:12:34,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:12:34 BoogieIcfgContainer [2023-08-30 15:12:34,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 15:12:34,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 15:12:34,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 15:12:34,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 15:12:34,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:12:34" (1/3) ... [2023-08-30 15:12:34,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c8b04c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:12:34, skipping insertion in model container [2023-08-30 15:12:34,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:34" (2/3) ... [2023-08-30 15:12:34,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c8b04c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:12:34, skipping insertion in model container [2023-08-30 15:12:34,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:12:34" (3/3) ... [2023-08-30 15:12:34,975 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-2.wvr.c [2023-08-30 15:12:34,982 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 15:12:34,989 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 15:12:34,989 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 15:12:34,989 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 15:12:35,044 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 15:12:35,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 101 transitions, 218 flow [2023-08-30 15:12:35,134 INFO L130 PetriNetUnfolder]: 2/99 cut-off events. [2023-08-30 15:12:35,140 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 15:12:35,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 99 events. 2/99 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2023-08-30 15:12:35,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 101 transitions, 218 flow [2023-08-30 15:12:35,148 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 83 transitions, 175 flow [2023-08-30 15:12:35,151 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 15:12:35,158 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 83 transitions, 175 flow [2023-08-30 15:12:35,160 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 83 transitions, 175 flow [2023-08-30 15:12:35,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 83 transitions, 175 flow [2023-08-30 15:12:35,182 INFO L130 PetriNetUnfolder]: 1/83 cut-off events. [2023-08-30 15:12:35,183 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 15:12:35,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 83 events. 1/83 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 53 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2023-08-30 15:12:35,184 INFO L119 LiptonReduction]: Number of co-enabled transitions 538 [2023-08-30 15:12:38,012 INFO L134 LiptonReduction]: Checked pairs total: 2755 [2023-08-30 15:12:38,013 INFO L136 LiptonReduction]: Total number of compositions: 64 [2023-08-30 15:12:38,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 15:12:38,030 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;@73a087ed, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 15:12:38,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-08-30 15:12:38,033 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2023-08-30 15:12:38,033 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 15:12:38,033 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:12:38,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 15:12:38,034 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-08-30 15:12:38,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:12:38,038 INFO L85 PathProgramCache]: Analyzing trace with hash 399968, now seen corresponding path program 1 times [2023-08-30 15:12:38,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:12:38,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828431364] [2023-08-30 15:12:38,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:12:38,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:12:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:12:38,423 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 15:12:38,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:12:38,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828431364] [2023-08-30 15:12:38,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828431364] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:12:38,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:12:38,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 15:12:38,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995250529] [2023-08-30 15:12:38,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:12:38,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 15:12:38,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:12:38,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 15:12:38,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 15:12:38,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 165 [2023-08-30 15:12:38,480 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 15:12:38,480 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:12:38,481 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 165 [2023-08-30 15:12:38,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:12:38,593 INFO L130 PetriNetUnfolder]: 161/326 cut-off events. [2023-08-30 15:12:38,593 INFO L131 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2023-08-30 15:12:38,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 654 conditions, 326 events. 161/326 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1590 event pairs, 86 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 584. Up to 298 conditions per place. [2023-08-30 15:12:38,599 INFO L137 encePairwiseOnDemand]: 158/165 looper letters, 23 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2023-08-30 15:12:38,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 122 flow [2023-08-30 15:12:38,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 15:12:38,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 15:12:38,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2023-08-30 15:12:38,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2023-08-30 15:12:38,620 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2023-08-30 15:12:38,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2023-08-30 15:12:38,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:12:38,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2023-08-30 15:12:38,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 15:12:38,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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 15:12:38,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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 15:12:38,635 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 57 flow. Second operand 3 states and 264 transitions. [2023-08-30 15:12:38,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 122 flow [2023-08-30 15:12:38,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 29 transitions, 116 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 15:12:38,640 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 77 flow [2023-08-30 15:12:38,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2023-08-30 15:12:38,646 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 0 predicate places. [2023-08-30 15:12:38,647 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 77 flow [2023-08-30 15:12:38,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 15:12:38,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:12:38,651 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 15:12:38,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 15:12:38,652 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-08-30 15:12:38,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:12:38,653 INFO L85 PathProgramCache]: Analyzing trace with hash -966825360, now seen corresponding path program 1 times [2023-08-30 15:12:38,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:12:38,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404892127] [2023-08-30 15:12:38,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:12:38,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:12:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:12:38,743 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 15:12:38,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:12:38,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404892127] [2023-08-30 15:12:38,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404892127] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:12:38,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:12:38,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 15:12:38,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517065378] [2023-08-30 15:12:38,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:12:38,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 15:12:38,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:12:38,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 15:12:38,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 15:12:38,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 165 [2023-08-30 15:12:38,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 15:12:38,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:12:38,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 165 [2023-08-30 15:12:38,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:12:38,829 INFO L130 PetriNetUnfolder]: 133/270 cut-off events. [2023-08-30 15:12:38,830 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-08-30 15:12:38,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 270 events. 133/270 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1296 event pairs, 123 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 438. Up to 252 conditions per place. [2023-08-30 15:12:38,834 INFO L137 encePairwiseOnDemand]: 162/165 looper letters, 20 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-30 15:12:38,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 24 transitions, 111 flow [2023-08-30 15:12:38,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 15:12:38,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 15:12:38,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2023-08-30 15:12:38,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5151515151515151 [2023-08-30 15:12:38,837 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2023-08-30 15:12:38,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2023-08-30 15:12:38,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:12:38,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2023-08-30 15:12:38,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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 15:12:38,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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 15:12:38,841 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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 15:12:38,841 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 77 flow. Second operand 3 states and 255 transitions. [2023-08-30 15:12:38,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 24 transitions, 111 flow [2023-08-30 15:12:38,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 24 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 15:12:38,843 INFO L231 Difference]: Finished difference. Result has 30 places, 24 transitions, 68 flow [2023-08-30 15:12:38,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=28, 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=68, PETRI_PLACES=30, PETRI_TRANSITIONS=24} [2023-08-30 15:12:38,844 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2023-08-30 15:12:38,844 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 24 transitions, 68 flow [2023-08-30 15:12:38,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 15:12:38,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:12:38,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 15:12:38,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 15:12:38,845 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-08-30 15:12:38,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:12:38,848 INFO L85 PathProgramCache]: Analyzing trace with hash -969036899, now seen corresponding path program 1 times [2023-08-30 15:12:38,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:12:38,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607727693] [2023-08-30 15:12:38,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:12:38,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:12:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:12:39,008 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 15:12:39,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:12:39,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607727693] [2023-08-30 15:12:39,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607727693] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:12:39,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:12:39,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 15:12:39,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054346426] [2023-08-30 15:12:39,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:12:39,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 15:12:39,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:12:39,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 15:12:39,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 15:12:39,022 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 165 [2023-08-30 15:12:39,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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 15:12:39,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:12:39,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 165 [2023-08-30 15:12:39,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:12:39,084 INFO L130 PetriNetUnfolder]: 105/224 cut-off events. [2023-08-30 15:12:39,084 INFO L131 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2023-08-30 15:12:39,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 224 events. 105/224 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 981 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 465. Up to 146 conditions per place. [2023-08-30 15:12:39,086 INFO L137 encePairwiseOnDemand]: 160/165 looper letters, 28 selfloop transitions, 5 changer transitions 0/36 dead transitions. [2023-08-30 15:12:39,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 36 transitions, 157 flow [2023-08-30 15:12:39,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 15:12:39,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 15:12:39,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 347 transitions. [2023-08-30 15:12:39,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5257575757575758 [2023-08-30 15:12:39,087 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 347 transitions. [2023-08-30 15:12:39,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 347 transitions. [2023-08-30 15:12:39,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:12:39,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 347 transitions. [2023-08-30 15:12:39,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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 15:12:39,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 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 15:12:39,091 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 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 15:12:39,091 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 68 flow. Second operand 4 states and 347 transitions. [2023-08-30 15:12:39,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 36 transitions, 157 flow [2023-08-30 15:12:39,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 36 transitions, 156 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 15:12:39,092 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 69 flow [2023-08-30 15:12:39,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=69, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2023-08-30 15:12:39,093 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2023-08-30 15:12:39,093 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 69 flow [2023-08-30 15:12:39,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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 15:12:39,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:12:39,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:12:39,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 15:12:39,094 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-08-30 15:12:39,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:12:39,094 INFO L85 PathProgramCache]: Analyzing trace with hash 22373732, now seen corresponding path program 1 times [2023-08-30 15:12:39,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:12:39,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518076600] [2023-08-30 15:12:39,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:12:39,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:12:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:12:39,191 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 15:12:39,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:12:39,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518076600] [2023-08-30 15:12:39,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518076600] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:12:39,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:12:39,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 15:12:39,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5566379] [2023-08-30 15:12:39,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:12:39,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 15:12:39,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:12:39,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 15:12:39,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 15:12:39,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 165 [2023-08-30 15:12:39,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 15:12:39,200 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:12:39,200 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 165 [2023-08-30 15:12:39,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:12:39,247 INFO L130 PetriNetUnfolder]: 53/124 cut-off events. [2023-08-30 15:12:39,247 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2023-08-30 15:12:39,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 124 events. 53/124 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 397 event pairs, 22 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 285. Up to 70 conditions per place. [2023-08-30 15:12:39,248 INFO L137 encePairwiseOnDemand]: 158/165 looper letters, 23 selfloop transitions, 3 changer transitions 2/31 dead transitions. [2023-08-30 15:12:39,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 31 transitions, 153 flow [2023-08-30 15:12:39,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 15:12:39,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 15:12:39,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2023-08-30 15:12:39,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2023-08-30 15:12:39,251 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2023-08-30 15:12:39,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2023-08-30 15:12:39,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:12:39,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2023-08-30 15:12:39,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 15:12:39,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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 15:12:39,254 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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 15:12:39,254 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 69 flow. Second operand 3 states and 264 transitions. [2023-08-30 15:12:39,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 31 transitions, 153 flow [2023-08-30 15:12:39,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 31 transitions, 134 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-30 15:12:39,256 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 73 flow [2023-08-30 15:12:39,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2023-08-30 15:12:39,257 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2023-08-30 15:12:39,257 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 73 flow [2023-08-30 15:12:39,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 15:12:39,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:12:39,257 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:12:39,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 15:12:39,258 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-08-30 15:12:39,258 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:12:39,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1586836490, now seen corresponding path program 1 times [2023-08-30 15:12:39,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:12:39,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220875574] [2023-08-30 15:12:39,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:12:39,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:12:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:12:39,292 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 15:12:39,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:12:39,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220875574] [2023-08-30 15:12:39,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220875574] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:12:39,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:12:39,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 15:12:39,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154435220] [2023-08-30 15:12:39,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:12:39,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 15:12:39,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:12:39,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 15:12:39,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 15:12:39,299 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 165 [2023-08-30 15:12:39,299 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 15:12:39,300 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:12:39,300 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 165 [2023-08-30 15:12:39,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:12:39,328 INFO L130 PetriNetUnfolder]: 44/107 cut-off events. [2023-08-30 15:12:39,329 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2023-08-30 15:12:39,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 107 events. 44/107 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 335 event pairs, 38 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 249. Up to 95 conditions per place. [2023-08-30 15:12:39,330 INFO L137 encePairwiseOnDemand]: 162/165 looper letters, 16 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-08-30 15:12:39,330 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 20 transitions, 99 flow [2023-08-30 15:12:39,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 15:12:39,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 15:12:39,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-08-30 15:12:39,331 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5070707070707071 [2023-08-30 15:12:39,331 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-08-30 15:12:39,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-08-30 15:12:39,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:12:39,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-08-30 15:12:39,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 15:12:39,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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 15:12:39,334 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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 15:12:39,334 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 73 flow. Second operand 3 states and 251 transitions. [2023-08-30 15:12:39,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 20 transitions, 99 flow [2023-08-30 15:12:39,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 20 transitions, 96 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 15:12:39,336 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 64 flow [2023-08-30 15:12:39,336 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-08-30 15:12:39,336 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -2 predicate places. [2023-08-30 15:12:39,337 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 64 flow [2023-08-30 15:12:39,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 15:12:39,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:12:39,337 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:12:39,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 15:12:39,338 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-08-30 15:12:39,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:12:39,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1075677771, now seen corresponding path program 1 times [2023-08-30 15:12:39,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:12:39,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878376404] [2023-08-30 15:12:39,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:12:39,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:12:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:12:39,412 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 15:12:39,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:12:39,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878376404] [2023-08-30 15:12:39,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878376404] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:12:39,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:12:39,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 15:12:39,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808338566] [2023-08-30 15:12:39,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:12:39,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 15:12:39,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:12:39,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 15:12:39,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 15:12:39,422 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 165 [2023-08-30 15:12:39,423 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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 15:12:39,423 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:12:39,423 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 165 [2023-08-30 15:12:39,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:12:39,454 INFO L130 PetriNetUnfolder]: 40/95 cut-off events. [2023-08-30 15:12:39,454 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-08-30 15:12:39,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 95 events. 40/95 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 273 event pairs, 16 based on Foata normal form. 6/98 useless extension candidates. Maximal degree in co-relation 207. Up to 45 conditions per place. [2023-08-30 15:12:39,455 INFO L137 encePairwiseOnDemand]: 160/165 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2023-08-30 15:12:39,455 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 25 transitions, 118 flow [2023-08-30 15:12:39,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 15:12:39,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 15:12:39,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 334 transitions. [2023-08-30 15:12:39,457 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5060606060606061 [2023-08-30 15:12:39,457 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 334 transitions. [2023-08-30 15:12:39,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 334 transitions. [2023-08-30 15:12:39,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:12:39,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 334 transitions. [2023-08-30 15:12:39,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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 15:12:39,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 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 15:12:39,460 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 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 15:12:39,460 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 64 flow. Second operand 4 states and 334 transitions. [2023-08-30 15:12:39,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 25 transitions, 118 flow [2023-08-30 15:12:39,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 25 transitions, 114 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 15:12:39,461 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2023-08-30 15:12:39,461 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2023-08-30 15:12:39,462 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2023-08-30 15:12:39,462 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2023-08-30 15:12:39,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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 15:12:39,469 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2023-08-30 15:12:39,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2023-08-30 15:12:39,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2023-08-30 15:12:39,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2023-08-30 15:12:39,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2023-08-30 15:12:39,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2023-08-30 15:12:39,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2023-08-30 15:12:39,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2023-08-30 15:12:39,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2023-08-30 15:12:39,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2023-08-30 15:12:39,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2023-08-30 15:12:39,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2023-08-30 15:12:39,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2023-08-30 15:12:39,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2023-08-30 15:12:39,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2023-08-30 15:12:39,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2023-08-30 15:12:39,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2023-08-30 15:12:39,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2023-08-30 15:12:39,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 15:12:39,473 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-30 15:12:39,478 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 15:12:39,479 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 15:12:39,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:12:39 BasicIcfg [2023-08-30 15:12:39,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 15:12:39,486 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 15:12:39,486 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 15:12:39,486 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 15:12:39,487 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:12:34" (3/4) ... [2023-08-30 15:12:39,489 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 15:12:39,493 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-30 15:12:39,493 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-30 15:12:39,499 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-08-30 15:12:39,499 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 15:12:39,499 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 15:12:39,499 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 15:12:39,528 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 15:12:39,529 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 15:12:39,529 INFO L158 Benchmark]: Toolchain (without parser) took 5484.25ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 55.8MB in the beginning and 42.9MB in the end (delta: 12.9MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2023-08-30 15:12:39,530 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 38.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 15:12:39,530 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.30ms. Allocated memory is still 77.6MB. Free memory was 55.5MB in the beginning and 44.8MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 15:12:39,530 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.56ms. Allocated memory is still 77.6MB. Free memory was 44.8MB in the beginning and 42.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 15:12:39,530 INFO L158 Benchmark]: Boogie Preprocessor took 40.48ms. Allocated memory is still 77.6MB. Free memory was 42.9MB in the beginning and 41.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 15:12:39,531 INFO L158 Benchmark]: RCFGBuilder took 541.04ms. Allocated memory is still 77.6MB. Free memory was 41.5MB in the beginning and 42.3MB in the end (delta: -793.0kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 15:12:39,531 INFO L158 Benchmark]: TraceAbstraction took 4516.23ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 41.5MB in the beginning and 45.8MB in the end (delta: -4.3MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2023-08-30 15:12:39,531 INFO L158 Benchmark]: Witness Printer took 42.89ms. Allocated memory is still 94.4MB. Free memory was 45.8MB in the beginning and 42.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 15:12:39,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 38.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.30ms. Allocated memory is still 77.6MB. Free memory was 55.5MB in the beginning and 44.8MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.56ms. Allocated memory is still 77.6MB. Free memory was 44.8MB in the beginning and 42.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.48ms. Allocated memory is still 77.6MB. Free memory was 42.9MB in the beginning and 41.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 541.04ms. Allocated memory is still 77.6MB. Free memory was 41.5MB in the beginning and 42.3MB in the end (delta: -793.0kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4516.23ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 41.5MB in the beginning and 45.8MB in the end (delta: -4.3MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Witness Printer took 42.89ms. Allocated memory is still 94.4MB. Free memory was 45.8MB in the beginning and 42.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 89 PlacesBefore, 31 PlacesAfterwards, 83 TransitionsBefore, 24 TransitionsAfterwards, 538 CoEnabledTransitionPairs, 7 FixpointIterations, 49 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 2755 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1293, independent: 1109, independent conditional: 0, independent unconditional: 1109, dependent: 184, dependent conditional: 0, dependent unconditional: 184, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 262, independent: 239, independent conditional: 0, independent unconditional: 239, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1293, independent: 870, independent conditional: 0, independent unconditional: 870, dependent: 161, dependent conditional: 0, dependent unconditional: 161, unknown: 262, unknown conditional: 0, unknown unconditional: 262] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: 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, 125 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 198 IncrementalHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 7 mSDtfsCounter, 198 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=1, InterpolantAutomatonStates: 20, 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, 0.6s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 15:12:39,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE