./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix039.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix039.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 4df22382a468f75ea1bc6624bacd8789c0b9b9f8aa1bc2866cf2715dcbc507bc --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 05:20:50,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:20:50,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:20:51,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:20:51,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:20:51,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:20:51,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:20:51,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:20:51,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:20:51,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:20:51,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:20:51,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:20:51,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:20:51,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:20:51,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:20:51,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:20:51,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:20:51,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:20:51,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:20:51,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:20:51,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:20:51,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:20:51,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:20:51,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:20:51,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:20:51,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:20:51,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:20:51,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:20:51,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:20:51,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:20:51,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:20:51,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:20:51,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:20:51,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:20:51,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:20:51,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:20:51,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:20:51,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:20:51,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:20:51,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:20:51,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:20:51,105 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:20:51,136 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:20:51,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:20:51,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:20:51,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:20:51,139 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:20:51,139 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:20:51,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:20:51,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:20:51,140 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:20:51,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:20:51,141 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:20:51,142 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:20:51,142 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:20:51,142 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:20:51,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:20:51,143 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:20:51,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:20:51,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:20:51,143 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:20:51,143 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:20:51,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:20:51,144 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:20:51,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:20:51,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:20:51,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:20:51,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:20:51,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:20:51,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:20:51,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:20:51,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:20:51,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:20:51,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:20:51,147 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:20:51,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:20:51,147 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:20:51,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:20:51,148 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:20:51,148 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4df22382a468f75ea1bc6624bacd8789c0b9b9f8aa1bc2866cf2715dcbc507bc Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:20:51,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:20:51,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:20:51,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:20:51,507 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:20:51,507 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:20:51,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix039.opt.i [2023-09-01 05:20:52,676 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:20:52,935 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:20:52,936 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix039.opt.i [2023-09-01 05:20:52,949 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09e44b069/abf980b583294ecc98b968d69cdef71a/FLAGe0509b959 [2023-09-01 05:20:52,966 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09e44b069/abf980b583294ecc98b968d69cdef71a [2023-09-01 05:20:52,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:20:52,969 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:20:52,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:20:52,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:20:52,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:20:52,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:20:52" (1/1) ... [2023-09-01 05:20:52,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ff306b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:20:52, skipping insertion in model container [2023-09-01 05:20:52,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:20:52" (1/1) ... [2023-09-01 05:20:52,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:20:53,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:20:53,206 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/mix039.opt.i[944,957] [2023-09-01 05:20:53,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:20:53,463 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:20:53,496 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/mix039.opt.i[944,957] [2023-09-01 05:20:53,538 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:20:53,563 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:20:53,563 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:20:53,569 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:20:53,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:20:53 WrapperNode [2023-09-01 05:20:53,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:20:53,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:20:53,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:20:53,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:20:53,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:20:53" (1/1) ... [2023-09-01 05:20:53,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:20:53" (1/1) ... [2023-09-01 05:20:53,610 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 154 [2023-09-01 05:20:53,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:20:53,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:20:53,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:20:53,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:20:53,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:20:53" (1/1) ... [2023-09-01 05:20:53,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:20:53" (1/1) ... [2023-09-01 05:20:53,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:20:53" (1/1) ... [2023-09-01 05:20:53,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:20:53" (1/1) ... [2023-09-01 05:20:53,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:20:53" (1/1) ... [2023-09-01 05:20:53,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:20:53" (1/1) ... [2023-09-01 05:20:53,654 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:20:53" (1/1) ... [2023-09-01 05:20:53,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:20:53" (1/1) ... [2023-09-01 05:20:53,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:20:53,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:20:53,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:20:53,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:20:53,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:20:53" (1/1) ... [2023-09-01 05:20:53,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:20:53,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:20:53,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 05:20:53,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 05:20:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:20:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:20:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:20:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:20:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:20:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:20:53,746 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:20:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:20:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:20:53,747 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-09-01 05:20:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-09-01 05:20:53,747 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-09-01 05:20:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-09-01 05:20:53,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:20:53,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:20:53,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:20:53,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:20:53,749 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 05:20:53,964 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:20:53,965 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:20:54,277 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:20:54,437 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:20:54,437 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:20:54,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:20:54 BoogieIcfgContainer [2023-09-01 05:20:54,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:20:54,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:20:54,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:20:54,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:20:54,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:20:52" (1/3) ... [2023-09-01 05:20:54,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189c5860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:20:54, skipping insertion in model container [2023-09-01 05:20:54,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:20:53" (2/3) ... [2023-09-01 05:20:54,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189c5860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:20:54, skipping insertion in model container [2023-09-01 05:20:54,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:20:54" (3/3) ... [2023-09-01 05:20:54,450 INFO L112 eAbstractionObserver]: Analyzing ICFG mix039.opt.i [2023-09-01 05:20:54,458 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:20:54,466 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:20:54,467 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-09-01 05:20:54,467 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:20:54,538 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:20:54,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 136 transitions, 292 flow [2023-09-01 05:20:54,652 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2023-09-01 05:20:54,652 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:20:54,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 92 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2023-09-01 05:20:54,658 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 136 transitions, 292 flow [2023-09-01 05:20:54,668 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 132 transitions, 276 flow [2023-09-01 05:20:54,672 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:20:54,681 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 132 transitions, 276 flow [2023-09-01 05:20:54,683 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 132 transitions, 276 flow [2023-09-01 05:20:54,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 132 transitions, 276 flow [2023-09-01 05:20:54,717 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2023-09-01 05:20:54,718 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:20:54,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 92 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2023-09-01 05:20:54,723 INFO L119 LiptonReduction]: Number of co-enabled transitions 3684 [2023-09-01 05:20:58,832 INFO L134 LiptonReduction]: Checked pairs total: 11371 [2023-09-01 05:20:58,832 INFO L136 LiptonReduction]: Total number of compositions: 105 [2023-09-01 05:20:58,852 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:20:58,858 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;@6cac490c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:20:58,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-09-01 05:20:58,866 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-09-01 05:20:58,867 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:20:58,867 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:20:58,868 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:20:58,868 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:20:58,872 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:20:58,872 INFO L85 PathProgramCache]: Analyzing trace with hash 532045978, now seen corresponding path program 1 times [2023-09-01 05:20:58,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:20:58,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043678073] [2023-09-01 05:20:58,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:20:58,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:20:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:20:59,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:20:59,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:20:59,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043678073] [2023-09-01 05:20:59,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043678073] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:20:59,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:20:59,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:20:59,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077561245] [2023-09-01 05:20:59,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:20:59,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:20:59,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:20:59,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:20:59,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:20:59,171 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 241 [2023-09-01 05:20:59,174 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 33 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:20:59,174 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:20:59,174 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 241 [2023-09-01 05:20:59,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:21:00,306 INFO L130 PetriNetUnfolder]: 6649/9345 cut-off events. [2023-09-01 05:21:00,307 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2023-09-01 05:21:00,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18867 conditions, 9345 events. 6649/9345 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 52718 event pairs, 1861 based on Foata normal form. 0/6574 useless extension candidates. Maximal degree in co-relation 18855. Up to 8623 conditions per place. [2023-09-01 05:21:00,371 INFO L137 encePairwiseOnDemand]: 228/241 looper letters, 45 selfloop transitions, 5 changer transitions 0/53 dead transitions. [2023-09-01 05:21:00,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 53 transitions, 227 flow [2023-09-01 05:21:00,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:21:00,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:21:00,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2023-09-01 05:21:00,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5449515905947441 [2023-09-01 05:21:00,385 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2023-09-01 05:21:00,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2023-09-01 05:21:00,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:21:00,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2023-09-01 05:21:00,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:00,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:00,397 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:00,399 INFO L175 Difference]: Start difference. First operand has 46 places, 33 transitions, 78 flow. Second operand 3 states and 394 transitions. [2023-09-01 05:21:00,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 53 transitions, 227 flow [2023-09-01 05:21:00,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 53 transitions, 220 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 05:21:00,405 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 121 flow [2023-09-01 05:21:00,407 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2023-09-01 05:21:00,410 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2023-09-01 05:21:00,410 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 121 flow [2023-09-01 05:21:00,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:00,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:21:00,411 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:21:00,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:21:00,412 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:21:00,412 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:21:00,412 INFO L85 PathProgramCache]: Analyzing trace with hash -2028457021, now seen corresponding path program 1 times [2023-09-01 05:21:00,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:21:00,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469386481] [2023-09-01 05:21:00,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:21:00,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:21:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:21:00,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:21:00,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:21:00,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469386481] [2023-09-01 05:21:00,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469386481] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:21:00,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:21:00,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:21:00,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517393044] [2023-09-01 05:21:00,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:21:00,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:21:00,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:21:00,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:21:00,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:21:00,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 241 [2023-09-01 05:21:00,536 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 121 flow. Second operand has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:00,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:21:00,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 241 [2023-09-01 05:21:00,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:21:01,115 INFO L130 PetriNetUnfolder]: 3813/5373 cut-off events. [2023-09-01 05:21:01,115 INFO L131 PetriNetUnfolder]: For 314/314 co-relation queries the response was YES. [2023-09-01 05:21:01,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13378 conditions, 5373 events. 3813/5373 cut-off events. For 314/314 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 27096 event pairs, 909 based on Foata normal form. 0/4448 useless extension candidates. Maximal degree in co-relation 13367. Up to 4650 conditions per place. [2023-09-01 05:21:01,149 INFO L137 encePairwiseOnDemand]: 232/241 looper letters, 41 selfloop transitions, 5 changer transitions 0/49 dead transitions. [2023-09-01 05:21:01,150 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 49 transitions, 235 flow [2023-09-01 05:21:01,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:21:01,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:21:01,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 498 transitions. [2023-09-01 05:21:01,153 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.516597510373444 [2023-09-01 05:21:01,153 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 498 transitions. [2023-09-01 05:21:01,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 498 transitions. [2023-09-01 05:21:01,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:21:01,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 498 transitions. [2023-09-01 05:21:01,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 124.5) internal successors, (498), 4 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:01,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:01,158 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:01,158 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 121 flow. Second operand 4 states and 498 transitions. [2023-09-01 05:21:01,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 49 transitions, 235 flow [2023-09-01 05:21:01,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 49 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:21:01,160 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 110 flow [2023-09-01 05:21:01,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2023-09-01 05:21:01,161 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2023-09-01 05:21:01,161 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 110 flow [2023-09-01 05:21:01,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:01,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:21:01,162 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:21:01,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:21:01,162 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:21:01,163 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:21:01,163 INFO L85 PathProgramCache]: Analyzing trace with hash -2028457020, now seen corresponding path program 1 times [2023-09-01 05:21:01,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:21:01,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560796316] [2023-09-01 05:21:01,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:21:01,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:21:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:21:01,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:21:01,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:21:01,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560796316] [2023-09-01 05:21:01,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560796316] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:21:01,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:21:01,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:21:01,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743256166] [2023-09-01 05:21:01,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:21:01,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:21:01,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:21:01,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:21:01,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:21:01,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 241 [2023-09-01 05:21:01,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:01,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:21:01,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 241 [2023-09-01 05:21:01,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:21:01,642 INFO L130 PetriNetUnfolder]: 2366/3388 cut-off events. [2023-09-01 05:21:01,643 INFO L131 PetriNetUnfolder]: For 974/974 co-relation queries the response was YES. [2023-09-01 05:21:01,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8339 conditions, 3388 events. 2366/3388 cut-off events. For 974/974 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 15719 event pairs, 511 based on Foata normal form. 0/3171 useless extension candidates. Maximal degree in co-relation 8327. Up to 1450 conditions per place. [2023-09-01 05:21:01,662 INFO L137 encePairwiseOnDemand]: 232/241 looper letters, 55 selfloop transitions, 9 changer transitions 0/67 dead transitions. [2023-09-01 05:21:01,663 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 67 transitions, 324 flow [2023-09-01 05:21:01,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:21:01,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:21:01,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 516 transitions. [2023-09-01 05:21:01,665 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5352697095435685 [2023-09-01 05:21:01,665 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 516 transitions. [2023-09-01 05:21:01,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 516 transitions. [2023-09-01 05:21:01,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:21:01,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 516 transitions. [2023-09-01 05:21:01,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:01,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:01,670 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:01,670 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 110 flow. Second operand 4 states and 516 transitions. [2023-09-01 05:21:01,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 67 transitions, 324 flow [2023-09-01 05:21:01,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 67 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:21:01,673 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 162 flow [2023-09-01 05:21:01,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=162, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2023-09-01 05:21:01,674 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2023-09-01 05:21:01,674 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 162 flow [2023-09-01 05:21:01,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:01,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:21:01,675 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:21:01,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:21:01,675 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:21:01,676 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:21:01,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1521751769, now seen corresponding path program 1 times [2023-09-01 05:21:01,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:21:01,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313719287] [2023-09-01 05:21:01,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:21:01,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:21:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:21:01,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:21:01,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:21:01,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313719287] [2023-09-01 05:21:01,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313719287] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:21:01,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:21:01,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:21:01,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764617892] [2023-09-01 05:21:01,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:21:01,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:21:01,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:21:01,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:21:01,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:21:01,790 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 241 [2023-09-01 05:21:01,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 162 flow. Second operand has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:01,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:21:01,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 241 [2023-09-01 05:21:01,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:21:02,253 INFO L130 PetriNetUnfolder]: 2087/2947 cut-off events. [2023-09-01 05:21:02,254 INFO L131 PetriNetUnfolder]: For 1980/1980 co-relation queries the response was YES. [2023-09-01 05:21:02,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8502 conditions, 2947 events. 2087/2947 cut-off events. For 1980/1980 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 13089 event pairs, 467 based on Foata normal form. 0/2916 useless extension candidates. Maximal degree in co-relation 8489. Up to 1216 conditions per place. [2023-09-01 05:21:02,278 INFO L137 encePairwiseOnDemand]: 232/241 looper letters, 63 selfloop transitions, 13 changer transitions 4/83 dead transitions. [2023-09-01 05:21:02,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 83 transitions, 442 flow [2023-09-01 05:21:02,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:21:02,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:21:02,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 644 transitions. [2023-09-01 05:21:02,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5344398340248963 [2023-09-01 05:21:02,285 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 644 transitions. [2023-09-01 05:21:02,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 644 transitions. [2023-09-01 05:21:02,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:21:02,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 644 transitions. [2023-09-01 05:21:02,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:02,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 241.0) internal successors, (1446), 6 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:02,291 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 241.0) internal successors, (1446), 6 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:02,291 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 162 flow. Second operand 5 states and 644 transitions. [2023-09-01 05:21:02,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 83 transitions, 442 flow [2023-09-01 05:21:02,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 83 transitions, 424 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-09-01 05:21:02,300 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 186 flow [2023-09-01 05:21:02,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=186, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2023-09-01 05:21:02,302 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places. [2023-09-01 05:21:02,302 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 186 flow [2023-09-01 05:21:02,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:02,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:21:02,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:21:02,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:21:02,304 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:21:02,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:21:02,304 INFO L85 PathProgramCache]: Analyzing trace with hash -2146395103, now seen corresponding path program 1 times [2023-09-01 05:21:02,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:21:02,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630849411] [2023-09-01 05:21:02,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:21:02,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:21:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:21:02,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:21:02,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:21:02,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630849411] [2023-09-01 05:21:02,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630849411] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:21:02,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:21:02,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:21:02,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557905356] [2023-09-01 05:21:02,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:21:02,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:21:02,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:21:02,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:21:02,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:21:02,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 241 [2023-09-01 05:21:02,469 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:02,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:21:02,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 241 [2023-09-01 05:21:02,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:21:02,825 INFO L130 PetriNetUnfolder]: 2060/2900 cut-off events. [2023-09-01 05:21:02,825 INFO L131 PetriNetUnfolder]: For 2502/2502 co-relation queries the response was YES. [2023-09-01 05:21:02,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8583 conditions, 2900 events. 2060/2900 cut-off events. For 2502/2502 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 12891 event pairs, 467 based on Foata normal form. 16/2901 useless extension candidates. Maximal degree in co-relation 8569. Up to 1216 conditions per place. [2023-09-01 05:21:02,836 INFO L137 encePairwiseOnDemand]: 232/241 looper letters, 0 selfloop transitions, 0 changer transitions 75/75 dead transitions. [2023-09-01 05:21:02,836 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 75 transitions, 394 flow [2023-09-01 05:21:02,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:21:02,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:21:02,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 748 transitions. [2023-09-01 05:21:02,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5172890733056709 [2023-09-01 05:21:02,843 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 748 transitions. [2023-09-01 05:21:02,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 748 transitions. [2023-09-01 05:21:02,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:21:02,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 748 transitions. [2023-09-01 05:21:02,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.66666666666667) internal successors, (748), 6 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:02,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:02,850 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:02,851 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 186 flow. Second operand 6 states and 748 transitions. [2023-09-01 05:21:02,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 75 transitions, 394 flow [2023-09-01 05:21:02,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 75 transitions, 339 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-09-01 05:21:02,905 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2023-09-01 05:21:02,905 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2023-09-01 05:21:02,907 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2023-09-01 05:21:02,907 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2023-09-01 05:21:02,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:21:02,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-09-01 05:21:02,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-09-01 05:21:02,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-09-01 05:21:02,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-09-01 05:21:02,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-09-01 05:21:02,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-09-01 05:21:02,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-09-01 05:21:02,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-09-01 05:21:02,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-09-01 05:21:02,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-09-01 05:21:02,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-09-01 05:21:02,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-09-01 05:21:02,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-09-01 05:21:02,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-09-01 05:21:02,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-09-01 05:21:02,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-09-01 05:21:02,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-09-01 05:21:02,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-09-01 05:21:02,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-09-01 05:21:02,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-09-01 05:21:02,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 05:21:02,921 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-09-01 05:21:02,926 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:21:02,926 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:21:02,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:21:02 BasicIcfg [2023-09-01 05:21:02,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:21:02,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:21:02,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:21:02,932 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:21:02,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:20:54" (3/4) ... [2023-09-01 05:21:02,935 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:21:02,940 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:21:02,940 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:21:02,940 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-09-01 05:21:02,940 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-09-01 05:21:02,945 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-09-01 05:21:02,946 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-09-01 05:21:02,946 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 05:21:02,946 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:21:02,982 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:21:02,982 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:21:02,983 INFO L158 Benchmark]: Toolchain (without parser) took 10013.15ms. Allocated memory was 67.1MB in the beginning and 578.8MB in the end (delta: 511.7MB). Free memory was 43.5MB in the beginning and 305.4MB in the end (delta: -261.8MB). Peak memory consumption was 251.1MB. Max. memory is 16.1GB. [2023-09-01 05:21:02,983 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory is still 27.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:21:02,983 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.75ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 37.3MB in the end (delta: 6.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-09-01 05:21:02,983 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.88ms. Allocated memory is still 67.1MB. Free memory was 37.3MB in the beginning and 34.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:21:02,984 INFO L158 Benchmark]: Boogie Preprocessor took 52.59ms. Allocated memory is still 67.1MB. Free memory was 34.7MB in the beginning and 32.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:21:02,984 INFO L158 Benchmark]: RCFGBuilder took 775.87ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 32.9MB in the beginning and 47.1MB in the end (delta: -14.3MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2023-09-01 05:21:02,984 INFO L158 Benchmark]: TraceAbstraction took 8488.26ms. Allocated memory was 81.8MB in the beginning and 578.8MB in the end (delta: 497.0MB). Free memory was 46.6MB in the beginning and 308.5MB in the end (delta: -261.9MB). Peak memory consumption was 339.4MB. Max. memory is 16.1GB. [2023-09-01 05:21:02,985 INFO L158 Benchmark]: Witness Printer took 50.01ms. Allocated memory is still 578.8MB. Free memory was 308.5MB in the beginning and 305.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:21:02,986 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 50.3MB. Free memory is still 27.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 599.75ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 37.3MB in the end (delta: 6.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.88ms. Allocated memory is still 67.1MB. Free memory was 37.3MB in the beginning and 34.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.59ms. Allocated memory is still 67.1MB. Free memory was 34.7MB in the beginning and 32.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 775.87ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 32.9MB in the beginning and 47.1MB in the end (delta: -14.3MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8488.26ms. Allocated memory was 81.8MB in the beginning and 578.8MB in the end (delta: 497.0MB). Free memory was 46.6MB in the beginning and 308.5MB in the end (delta: -261.9MB). Peak memory consumption was 339.4MB. Max. memory is 16.1GB. * Witness Printer took 50.01ms. Allocated memory is still 578.8MB. Free memory was 308.5MB in the beginning and 305.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.1s, 143 PlacesBefore, 46 PlacesAfterwards, 132 TransitionsBefore, 33 TransitionsAfterwards, 3684 CoEnabledTransitionPairs, 7 FixpointIterations, 44 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 105 TotalNumberOfCompositions, 11371 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5103, independent: 4800, independent conditional: 0, independent unconditional: 4800, dependent: 303, dependent conditional: 0, dependent unconditional: 303, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1927, independent: 1867, independent conditional: 0, independent unconditional: 1867, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5103, independent: 2933, independent conditional: 0, independent unconditional: 2933, dependent: 243, dependent conditional: 0, dependent unconditional: 243, unknown: 1927, unknown conditional: 0, unknown unconditional: 1927] , Statistics on independence cache: Total cache size (in pairs): 228, Positive cache size: 204, Positive conditional cache size: 0, Positive unconditional cache size: 204, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 805]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 805]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 841]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 841]: 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, 178 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: 8.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 266 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 405 IncrementalHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 7 mSDtfsCounter, 405 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, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 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! [2023-09-01 05:21:03,005 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