./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 08:50:11,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:50:11,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:50:11,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:50:11,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:50:11,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:50:11,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:50:11,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:50:11,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:50:11,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:50:11,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:50:11,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:50:11,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:50:11,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:50:11,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:50:11,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:50:11,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:50:11,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:50:11,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:50:11,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:50:11,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:50:11,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:50:11,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:50:11,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:50:11,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:50:11,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:50:11,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:50:11,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:50:11,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:50:11,199 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:50:11,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:50:11,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:50:11,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:50:11,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:50:11,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:50:11,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:50:11,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:50:11,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:50:11,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:50:11,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:50:11,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:50:11,208 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:50:11,248 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:50:11,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:50:11,250 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:50:11,250 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:50:11,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:50:11,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:50:11,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:50:11,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:50:11,252 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:50:11,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:50:11,253 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:50:11,254 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:50:11,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:50:11,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:50:11,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:50:11,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:50:11,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:50:11,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:50:11,255 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:50:11,255 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:50:11,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:50:11,256 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:50:11,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:50:11,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:50:11,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:50:11,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:50:11,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:50:11,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:50:11,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:50:11,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:50:11,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:50:11,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:50:11,258 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:50:11,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:50:11,258 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:50:11,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:50:11,259 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:50:11,259 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:50:11,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:50:11,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:50:11,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:50:11,603 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:50:11,603 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:50:11,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 08:50:12,943 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:50:13,204 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:50:13,208 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 08:50:13,220 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed6f0062f/b25c1293eec84bcc89897aeb68944c67/FLAG2bdd2c787 [2023-08-30 08:50:13,235 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed6f0062f/b25c1293eec84bcc89897aeb68944c67 [2023-08-30 08:50:13,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:50:13,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:50:13,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:50:13,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:50:13,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:50:13,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:50:13" (1/1) ... [2023-08-30 08:50:13,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23fee3bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:13, skipping insertion in model container [2023-08-30 08:50:13,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:50:13" (1/1) ... [2023-08-30 08:50:13,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:50:13,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:50:13,420 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-08-30 08:50:13,559 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:50:13,573 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:50:13,587 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-08-30 08:50:13,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:50:13,657 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:50:13,658 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:50:13,664 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:50:13,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:13 WrapperNode [2023-08-30 08:50:13,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:50:13,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:50:13,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:50:13,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:50:13,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:13" (1/1) ... [2023-08-30 08:50:13,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:13" (1/1) ... [2023-08-30 08:50:13,739 INFO L138 Inliner]: procedures = 177, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2023-08-30 08:50:13,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:50:13,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:50:13,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:50:13,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:50:13,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:13" (1/1) ... [2023-08-30 08:50:13,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:13" (1/1) ... [2023-08-30 08:50:13,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:13" (1/1) ... [2023-08-30 08:50:13,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:13" (1/1) ... [2023-08-30 08:50:13,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:13" (1/1) ... [2023-08-30 08:50:13,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:13" (1/1) ... [2023-08-30 08:50:13,768 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:13" (1/1) ... [2023-08-30 08:50:13,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:13" (1/1) ... [2023-08-30 08:50:13,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:50:13,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:50:13,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:50:13,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:50:13,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:13" (1/1) ... [2023-08-30 08:50:13,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:50:13,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:50:13,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 08:50:13,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 08:50:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:50:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:50:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:50:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:50:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:50:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:50:13,844 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:50:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:50:13,844 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:50:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 08:50:13,845 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 08:50:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 08:50:13,845 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 08:50:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:50:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:50:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:50:13,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:50:13,846 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 08:50:13,948 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:50:13,949 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:50:14,294 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:50:14,328 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:50:14,336 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:50:14,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:50:14 BoogieIcfgContainer [2023-08-30 08:50:14,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:50:14,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:50:14,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:50:14,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:50:14,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:50:13" (1/3) ... [2023-08-30 08:50:14,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604ee19c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:50:14, skipping insertion in model container [2023-08-30 08:50:14,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:13" (2/3) ... [2023-08-30 08:50:14,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604ee19c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:50:14, skipping insertion in model container [2023-08-30 08:50:14,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:50:14" (3/3) ... [2023-08-30 08:50:14,349 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 08:50:14,357 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:50:14,366 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:50:14,366 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 08:50:14,366 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:50:14,466 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:50:14,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 111 transitions, 242 flow [2023-08-30 08:50:14,575 INFO L130 PetriNetUnfolder]: 2/107 cut-off events. [2023-08-30 08:50:14,575 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:50:14,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 107 events. 2/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2023-08-30 08:50:14,581 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 111 transitions, 242 flow [2023-08-30 08:50:14,586 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 107 transitions, 226 flow [2023-08-30 08:50:14,590 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:50:14,601 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 107 transitions, 226 flow [2023-08-30 08:50:14,609 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 107 transitions, 226 flow [2023-08-30 08:50:14,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 107 transitions, 226 flow [2023-08-30 08:50:14,688 INFO L130 PetriNetUnfolder]: 2/107 cut-off events. [2023-08-30 08:50:14,688 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:50:14,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 107 events. 2/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2023-08-30 08:50:14,692 INFO L119 LiptonReduction]: Number of co-enabled transitions 3296 [2023-08-30 08:50:17,311 INFO L134 LiptonReduction]: Checked pairs total: 9465 [2023-08-30 08:50:17,311 INFO L136 LiptonReduction]: Total number of compositions: 87 [2023-08-30 08:50:17,322 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:50:17,326 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;@47d8b38a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:50:17,327 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 08:50:17,334 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 08:50:17,334 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:50:17,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:17,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 08:50:17,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:50:17,342 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:17,342 INFO L85 PathProgramCache]: Analyzing trace with hash 378961950, now seen corresponding path program 1 times [2023-08-30 08:50:17,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:17,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472916972] [2023-08-30 08:50:17,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:17,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:17,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:17,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:17,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472916972] [2023-08-30 08:50:17,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472916972] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:17,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:17,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:50:17,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119765909] [2023-08-30 08:50:17,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:17,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:50:17,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:17,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:50:17,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:50:17,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 198 [2023-08-30 08:50:17,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 31 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:17,643 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:17,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 198 [2023-08-30 08:50:17,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:18,132 INFO L130 PetriNetUnfolder]: 2908/4224 cut-off events. [2023-08-30 08:50:18,133 INFO L131 PetriNetUnfolder]: For 78/78 co-relation queries the response was YES. [2023-08-30 08:50:18,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8604 conditions, 4224 events. 2908/4224 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 23036 event pairs, 1609 based on Foata normal form. 16/2653 useless extension candidates. Maximal degree in co-relation 8592. Up to 4107 conditions per place. [2023-08-30 08:50:18,173 INFO L137 encePairwiseOnDemand]: 183/198 looper letters, 35 selfloop transitions, 5 changer transitions 0/44 dead transitions. [2023-08-30 08:50:18,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 44 transitions, 189 flow [2023-08-30 08:50:18,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:50:18,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:50:18,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 324 transitions. [2023-08-30 08:50:18,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2023-08-30 08:50:18,192 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 324 transitions. [2023-08-30 08:50:18,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 324 transitions. [2023-08-30 08:50:18,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:18,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 324 transitions. [2023-08-30 08:50:18,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:18,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:18,207 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:18,208 INFO L175 Difference]: Start difference. First operand has 43 places, 31 transitions, 74 flow. Second operand 3 states and 324 transitions. [2023-08-30 08:50:18,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 44 transitions, 189 flow [2023-08-30 08:50:18,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 44 transitions, 182 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 08:50:18,216 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 117 flow [2023-08-30 08:50:18,219 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2023-08-30 08:50:18,224 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2023-08-30 08:50:18,227 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 117 flow [2023-08-30 08:50:18,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:18,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:18,228 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:18,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:50:18,229 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:50:18,236 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:18,237 INFO L85 PathProgramCache]: Analyzing trace with hash 910540516, now seen corresponding path program 1 times [2023-08-30 08:50:18,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:18,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034463786] [2023-08-30 08:50:18,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:18,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:18,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:18,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:18,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034463786] [2023-08-30 08:50:18,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034463786] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:18,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:18,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:50:18,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215021984] [2023-08-30 08:50:18,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:18,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:50:18,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:18,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:50:18,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:50:18,422 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 198 [2023-08-30 08:50:18,425 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 117 flow. Second operand has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:18,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:18,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 198 [2023-08-30 08:50:18,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:18,681 INFO L130 PetriNetUnfolder]: 1412/2094 cut-off events. [2023-08-30 08:50:18,682 INFO L131 PetriNetUnfolder]: For 214/214 co-relation queries the response was YES. [2023-08-30 08:50:18,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5578 conditions, 2094 events. 1412/2094 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 10088 event pairs, 609 based on Foata normal form. 0/1597 useless extension candidates. Maximal degree in co-relation 5567. Up to 1976 conditions per place. [2023-08-30 08:50:18,697 INFO L137 encePairwiseOnDemand]: 189/198 looper letters, 31 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2023-08-30 08:50:18,697 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 40 transitions, 199 flow [2023-08-30 08:50:18,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:50:18,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:50:18,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 404 transitions. [2023-08-30 08:50:18,700 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.51010101010101 [2023-08-30 08:50:18,700 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 404 transitions. [2023-08-30 08:50:18,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 404 transitions. [2023-08-30 08:50:18,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:18,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 404 transitions. [2023-08-30 08:50:18,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:18,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:18,705 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:18,705 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 117 flow. Second operand 4 states and 404 transitions. [2023-08-30 08:50:18,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 40 transitions, 199 flow [2023-08-30 08:50:18,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 40 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:50:18,707 INFO L231 Difference]: Finished difference. Result has 40 places, 30 transitions, 106 flow [2023-08-30 08:50:18,707 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2023-08-30 08:50:18,708 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2023-08-30 08:50:18,708 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 106 flow [2023-08-30 08:50:18,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:18,708 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:18,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:18,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:50:18,709 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:50:18,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:18,710 INFO L85 PathProgramCache]: Analyzing trace with hash 910698617, now seen corresponding path program 1 times [2023-08-30 08:50:18,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:18,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420598899] [2023-08-30 08:50:18,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:18,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:18,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:18,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:18,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420598899] [2023-08-30 08:50:18,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420598899] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:18,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:18,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:50:18,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069558856] [2023-08-30 08:50:18,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:18,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:50:18,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:18,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:50:18,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:50:18,771 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 198 [2023-08-30 08:50:18,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:18,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:18,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 198 [2023-08-30 08:50:18,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:18,956 INFO L130 PetriNetUnfolder]: 548/904 cut-off events. [2023-08-30 08:50:18,959 INFO L131 PetriNetUnfolder]: For 238/238 co-relation queries the response was YES. [2023-08-30 08:50:18,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2405 conditions, 904 events. 548/904 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4035 event pairs, 170 based on Foata normal form. 32/803 useless extension candidates. Maximal degree in co-relation 2393. Up to 611 conditions per place. [2023-08-30 08:50:18,964 INFO L137 encePairwiseOnDemand]: 188/198 looper letters, 39 selfloop transitions, 9 changer transitions 0/52 dead transitions. [2023-08-30 08:50:18,965 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 52 transitions, 264 flow [2023-08-30 08:50:18,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:50:18,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:50:18,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 417 transitions. [2023-08-30 08:50:18,967 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5265151515151515 [2023-08-30 08:50:18,967 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 417 transitions. [2023-08-30 08:50:18,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 417 transitions. [2023-08-30 08:50:18,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:18,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 417 transitions. [2023-08-30 08:50:18,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:18,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:18,971 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:18,972 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 106 flow. Second operand 4 states and 417 transitions. [2023-08-30 08:50:18,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 52 transitions, 264 flow [2023-08-30 08:50:18,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 52 transitions, 258 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 08:50:18,975 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 160 flow [2023-08-30 08:50:18,975 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2023-08-30 08:50:18,976 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2023-08-30 08:50:18,979 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 160 flow [2023-08-30 08:50:18,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:18,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:18,979 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:18,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:50:18,980 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:50:18,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:18,981 INFO L85 PathProgramCache]: Analyzing trace with hash -981544616, now seen corresponding path program 1 times [2023-08-30 08:50:18,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:18,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505474286] [2023-08-30 08:50:18,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:18,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:19,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:19,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:19,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505474286] [2023-08-30 08:50:19,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505474286] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:19,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:19,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:50:19,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065655115] [2023-08-30 08:50:19,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:19,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:50:19,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:19,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:50:19,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:50:19,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 198 [2023-08-30 08:50:19,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 160 flow. Second operand has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:19,114 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:19,114 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 198 [2023-08-30 08:50:19,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:19,236 INFO L130 PetriNetUnfolder]: 296/508 cut-off events. [2023-08-30 08:50:19,236 INFO L131 PetriNetUnfolder]: For 408/408 co-relation queries the response was YES. [2023-08-30 08:50:19,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1641 conditions, 508 events. 296/508 cut-off events. For 408/408 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1896 event pairs, 61 based on Foata normal form. 24/513 useless extension candidates. Maximal degree in co-relation 1628. Up to 210 conditions per place. [2023-08-30 08:50:19,240 INFO L137 encePairwiseOnDemand]: 188/198 looper letters, 41 selfloop transitions, 13 changer transitions 4/62 dead transitions. [2023-08-30 08:50:19,241 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 62 transitions, 360 flow [2023-08-30 08:50:19,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:50:19,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:50:19,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 518 transitions. [2023-08-30 08:50:19,244 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5232323232323233 [2023-08-30 08:50:19,244 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 518 transitions. [2023-08-30 08:50:19,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 518 transitions. [2023-08-30 08:50:19,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:19,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 518 transitions. [2023-08-30 08:50:19,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:19,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:19,249 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:19,249 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 160 flow. Second operand 5 states and 518 transitions. [2023-08-30 08:50:19,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 62 transitions, 360 flow [2023-08-30 08:50:19,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 62 transitions, 342 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-30 08:50:19,255 INFO L231 Difference]: Finished difference. Result has 45 places, 34 transitions, 186 flow [2023-08-30 08:50:19,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=186, PETRI_PLACES=45, PETRI_TRANSITIONS=34} [2023-08-30 08:50:19,256 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2023-08-30 08:50:19,257 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 34 transitions, 186 flow [2023-08-30 08:50:19,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:19,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:19,257 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:19,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:50:19,258 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:50:19,258 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:19,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1719528058, now seen corresponding path program 1 times [2023-08-30 08:50:19,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:19,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133621908] [2023-08-30 08:50:19,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:19,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:19,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:19,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133621908] [2023-08-30 08:50:19,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133621908] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:19,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:19,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:50:19,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180817839] [2023-08-30 08:50:19,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:19,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:50:19,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:19,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:50:19,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:50:19,368 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 198 [2023-08-30 08:50:19,369 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 34 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 93.66666666666667) internal successors, (562), 6 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:19,369 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:19,369 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 198 [2023-08-30 08:50:19,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:19,467 INFO L130 PetriNetUnfolder]: 269/450 cut-off events. [2023-08-30 08:50:19,467 INFO L131 PetriNetUnfolder]: For 502/502 co-relation queries the response was YES. [2023-08-30 08:50:19,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1502 conditions, 450 events. 269/450 cut-off events. For 502/502 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1690 event pairs, 51 based on Foata normal form. 12/455 useless extension candidates. Maximal degree in co-relation 1488. Up to 176 conditions per place. [2023-08-30 08:50:19,469 INFO L137 encePairwiseOnDemand]: 188/198 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2023-08-30 08:50:19,469 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 52 transitions, 300 flow [2023-08-30 08:50:19,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:19,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:19,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 599 transitions. [2023-08-30 08:50:19,471 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5042087542087542 [2023-08-30 08:50:19,471 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 599 transitions. [2023-08-30 08:50:19,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 599 transitions. [2023-08-30 08:50:19,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:19,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 599 transitions. [2023-08-30 08:50:19,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:19,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:19,475 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:19,475 INFO L175 Difference]: Start difference. First operand has 45 places, 34 transitions, 186 flow. Second operand 6 states and 599 transitions. [2023-08-30 08:50:19,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 52 transitions, 300 flow [2023-08-30 08:50:19,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 52 transitions, 245 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 08:50:19,480 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2023-08-30 08:50:19,480 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2023-08-30 08:50:19,480 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -5 predicate places. [2023-08-30 08:50:19,481 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2023-08-30 08:50:19,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.66666666666667) internal successors, (562), 6 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:19,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 08:50:19,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 08:50:19,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 08:50:19,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 08:50:19,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 08:50:19,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 08:50:19,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 08:50:19,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 08:50:19,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 08:50:19,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 08:50:19,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 08:50:19,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 08:50:19,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 08:50:19,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 08:50:19,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 08:50:19,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 08:50:19,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 08:50:19,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 08:50:19,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 08:50:19,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 08:50:19,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 08:50:19,487 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 08:50:19,492 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:50:19,492 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:50:19,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:50:19 BasicIcfg [2023-08-30 08:50:19,495 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:50:19,495 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:50:19,495 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:50:19,495 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:50:19,496 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:50:14" (3/4) ... [2023-08-30 08:50:19,498 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:50:19,502 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:50:19,502 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:50:19,503 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 08:50:19,503 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 08:50:19,506 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-08-30 08:50:19,506 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 08:50:19,506 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 08:50:19,507 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:50:19,541 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:50:19,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:50:19,541 INFO L158 Benchmark]: Toolchain (without parser) took 6302.79ms. Allocated memory was 62.9MB in the beginning and 182.5MB in the end (delta: 119.5MB). Free memory was 31.6MB in the beginning and 85.1MB in the end (delta: -53.6MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. [2023-08-30 08:50:19,542 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 52.4MB. Free memory was 30.6MB in the beginning and 30.5MB in the end (delta: 54.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:50:19,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.01ms. Allocated memory is still 62.9MB. Free memory was 31.4MB in the beginning and 42.1MB in the end (delta: -10.7MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2023-08-30 08:50:19,542 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.72ms. Allocated memory is still 62.9MB. Free memory was 42.1MB in the beginning and 40.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:50:19,542 INFO L158 Benchmark]: Boogie Preprocessor took 41.23ms. Allocated memory is still 62.9MB. Free memory was 40.0MB in the beginning and 38.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:50:19,542 INFO L158 Benchmark]: RCFGBuilder took 557.31ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 38.4MB in the beginning and 49.6MB in the end (delta: -11.2MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2023-08-30 08:50:19,543 INFO L158 Benchmark]: TraceAbstraction took 5152.52ms. Allocated memory was 75.5MB in the beginning and 182.5MB in the end (delta: 107.0MB). Free memory was 48.9MB in the beginning and 88.3MB in the end (delta: -39.4MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. [2023-08-30 08:50:19,543 INFO L158 Benchmark]: Witness Printer took 45.62ms. Allocated memory is still 182.5MB. Free memory was 88.3MB in the beginning and 85.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:50:19,544 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 52.4MB. Free memory was 30.6MB in the beginning and 30.5MB in the end (delta: 54.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 430.01ms. Allocated memory is still 62.9MB. Free memory was 31.4MB in the beginning and 42.1MB in the end (delta: -10.7MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.72ms. Allocated memory is still 62.9MB. Free memory was 42.1MB in the beginning and 40.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.23ms. Allocated memory is still 62.9MB. Free memory was 40.0MB in the beginning and 38.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 557.31ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 38.4MB in the beginning and 49.6MB in the end (delta: -11.2MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5152.52ms. Allocated memory was 75.5MB in the beginning and 182.5MB in the end (delta: 107.0MB). Free memory was 48.9MB in the beginning and 88.3MB in the end (delta: -39.4MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. * Witness Printer took 45.62ms. Allocated memory is still 182.5MB. Free memory was 88.3MB in the beginning and 85.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 118 PlacesBefore, 43 PlacesAfterwards, 107 TransitionsBefore, 31 TransitionsAfterwards, 3296 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 87 TotalNumberOfCompositions, 9465 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4666, independent: 4434, independent conditional: 0, independent unconditional: 4434, dependent: 232, dependent conditional: 0, dependent unconditional: 232, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1779, independent: 1740, independent conditional: 0, independent unconditional: 1740, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4666, independent: 2694, independent conditional: 0, independent unconditional: 2694, dependent: 193, dependent conditional: 0, dependent unconditional: 193, unknown: 1779, unknown conditional: 0, unknown unconditional: 1779] , Statistics on independence cache: Total cache size (in pairs): 185, Positive cache size: 168, Positive conditional cache size: 0, Positive unconditional cache size: 168, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 150 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 157 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 336 IncrementalHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 6 mSDtfsCounter, 336 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 165 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 08:50:19,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE