./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix016_power.opt_rmo.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/mix016_power.opt_rmo.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 3fc7a688cbe32836e1b8ce30abe37b248e61f96ae5014519dab91b2515bcd4ed --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 05:15:35,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:15:35,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:15:35,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:15:35,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:15:35,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:15:35,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:15:35,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:15:35,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:15:35,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:15:35,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:15:35,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:15:35,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:15:35,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:15:35,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:15:35,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:15:35,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:15:35,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:15:35,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:15:35,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:15:35,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:15:35,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:15:35,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:15:35,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:15:35,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:15:35,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:15:35,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:15:35,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:15:35,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:15:35,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:15:35,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:15:35,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:15:35,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:15:35,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:15:35,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:15:35,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:15:35,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:15:35,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:15:35,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:15:35,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:15:35,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:15:35,614 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:15:35,642 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:15:35,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:15:35,643 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:15:35,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:15:35,644 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:15:35,644 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:15:35,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:15:35,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:15:35,645 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:15:35,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:15:35,646 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:15:35,646 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:15:35,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:15:35,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:15:35,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:15:35,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:15:35,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:15:35,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:15:35,647 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:15:35,647 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:15:35,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:15:35,647 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:15:35,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:15:35,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:15:35,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:15:35,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:15:35,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:15:35,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:15:35,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:15:35,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:15:35,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:15:35,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:15:35,649 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:15:35,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:15:35,649 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:15:35,650 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:15:35,650 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:15:35,650 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fc7a688cbe32836e1b8ce30abe37b248e61f96ae5014519dab91b2515bcd4ed Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:15:35,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:15:35,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:15:35,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:15:35,977 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:15:35,978 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:15:35,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix016_power.opt_rmo.opt.i [2023-09-01 05:15:37,021 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:15:37,181 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:15:37,181 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix016_power.opt_rmo.opt.i [2023-09-01 05:15:37,191 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f14c677d1/8a8ce8b7ddc049c58702840c050190fd/FLAG41951a72e [2023-09-01 05:15:37,565 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f14c677d1/8a8ce8b7ddc049c58702840c050190fd [2023-09-01 05:15:37,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:15:37,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:15:37,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:15:37,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:15:37,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:15:37,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:15:37" (1/1) ... [2023-09-01 05:15:37,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bf03b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:15:37, skipping insertion in model container [2023-09-01 05:15:37,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:15:37" (1/1) ... [2023-09-01 05:15:37,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:15:37,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:15:37,756 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/mix016_power.opt_rmo.opt.i[1001,1014] [2023-09-01 05:15:37,932 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:15:37,943 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:15:37,951 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/mix016_power.opt_rmo.opt.i[1001,1014] [2023-09-01 05:15:38,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:15:38,035 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:15:38,036 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:15:38,040 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:15:38,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:15:38 WrapperNode [2023-09-01 05:15:38,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:15:38,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:15:38,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:15:38,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:15:38,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:15:38" (1/1) ... [2023-09-01 05:15:38,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:15:38" (1/1) ... [2023-09-01 05:15:38,103 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 132 [2023-09-01 05:15:38,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:15:38,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:15:38,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:15:38,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:15:38,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:15:38" (1/1) ... [2023-09-01 05:15:38,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:15:38" (1/1) ... [2023-09-01 05:15:38,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:15:38" (1/1) ... [2023-09-01 05:15:38,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:15:38" (1/1) ... [2023-09-01 05:15:38,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:15:38" (1/1) ... [2023-09-01 05:15:38,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:15:38" (1/1) ... [2023-09-01 05:15:38,141 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:15:38" (1/1) ... [2023-09-01 05:15:38,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:15:38" (1/1) ... [2023-09-01 05:15:38,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:15:38,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:15:38,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:15:38,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:15:38,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:15:38" (1/1) ... [2023-09-01 05:15:38,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:15:38,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:15:38,199 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 05:15:38,211 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 05:15:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:15:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:15:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:15:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:15:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:15:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:15:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:15:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:15:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:15:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-09-01 05:15:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-09-01 05:15:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:15:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:15:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:15:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:15:38,253 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 05:15:38,435 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:15:38,437 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:15:38,728 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:15:38,816 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:15:38,817 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:15:38,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:15:38 BoogieIcfgContainer [2023-09-01 05:15:38,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:15:38,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:15:38,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:15:38,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:15:38,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:15:37" (1/3) ... [2023-09-01 05:15:38,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba67782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:15:38, skipping insertion in model container [2023-09-01 05:15:38,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:15:38" (2/3) ... [2023-09-01 05:15:38,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba67782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:15:38, skipping insertion in model container [2023-09-01 05:15:38,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:15:38" (3/3) ... [2023-09-01 05:15:38,825 INFO L112 eAbstractionObserver]: Analyzing ICFG mix016_power.opt_rmo.opt.i [2023-09-01 05:15:38,831 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:15:38,837 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:15:38,838 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-09-01 05:15:38,838 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:15:38,883 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:15:38,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 114 transitions, 243 flow [2023-09-01 05:15:38,960 INFO L130 PetriNetUnfolder]: 2/111 cut-off events. [2023-09-01 05:15:38,960 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:15:38,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-09-01 05:15:38,965 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 114 transitions, 243 flow [2023-09-01 05:15:38,968 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 111 transitions, 231 flow [2023-09-01 05:15:38,971 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:15:38,980 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 111 transitions, 231 flow [2023-09-01 05:15:38,984 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 111 transitions, 231 flow [2023-09-01 05:15:38,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 111 transitions, 231 flow [2023-09-01 05:15:39,015 INFO L130 PetriNetUnfolder]: 2/111 cut-off events. [2023-09-01 05:15:39,020 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:15:39,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-09-01 05:15:39,023 INFO L119 LiptonReduction]: Number of co-enabled transitions 2346 [2023-09-01 05:15:41,884 INFO L134 LiptonReduction]: Checked pairs total: 8878 [2023-09-01 05:15:41,884 INFO L136 LiptonReduction]: Total number of compositions: 92 [2023-09-01 05:15:41,901 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:15:41,906 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;@1933e98d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:15:41,907 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-09-01 05:15:41,910 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-09-01 05:15:41,910 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:15:41,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:15:41,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:15:41,912 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:15:41,915 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:15:41,916 INFO L85 PathProgramCache]: Analyzing trace with hash 471486290, now seen corresponding path program 1 times [2023-09-01 05:15:41,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:15:41,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889559235] [2023-09-01 05:15:41,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:15:41,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:15:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:15:42,231 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 05:15:42,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:15:42,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889559235] [2023-09-01 05:15:42,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889559235] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:15:42,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:15:42,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:15:42,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391652837] [2023-09-01 05:15:42,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:15:42,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:15:42,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:15:42,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:15:42,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:15:42,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 206 [2023-09-01 05:15:42,293 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 05:15:42,294 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:15:42,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 206 [2023-09-01 05:15:42,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:15:42,593 INFO L130 PetriNetUnfolder]: 1421/2235 cut-off events. [2023-09-01 05:15:42,593 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-09-01 05:15:42,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4468 conditions, 2235 events. 1421/2235 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 11278 event pairs, 440 based on Foata normal form. 118/1786 useless extension candidates. Maximal degree in co-relation 4457. Up to 1666 conditions per place. [2023-09-01 05:15:42,605 INFO L137 encePairwiseOnDemand]: 195/206 looper letters, 40 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2023-09-01 05:15:42,605 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 47 transitions, 197 flow [2023-09-01 05:15:42,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:15:42,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:15:42,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 331 transitions. [2023-09-01 05:15:42,615 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5355987055016181 [2023-09-01 05:15:42,615 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 331 transitions. [2023-09-01 05:15:42,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 331 transitions. [2023-09-01 05:15:42,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:15:42,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 331 transitions. [2023-09-01 05:15:42,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 05:15:42,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 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 05:15:42,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 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 05:15:42,627 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 69 flow. Second operand 3 states and 331 transitions. [2023-09-01 05:15:42,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 47 transitions, 197 flow [2023-09-01 05:15:42,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 47 transitions, 192 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 05:15:42,631 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 100 flow [2023-09-01 05:15:42,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2023-09-01 05:15:42,634 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 0 predicate places. [2023-09-01 05:15:42,634 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 100 flow [2023-09-01 05:15:42,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 05:15:42,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:15:42,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:15:42,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:15:42,636 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:15:42,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:15:42,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1273608111, now seen corresponding path program 1 times [2023-09-01 05:15:42,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:15:42,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005808938] [2023-09-01 05:15:42,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:15:42,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:15:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:15:42,794 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 05:15:42,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:15:42,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005808938] [2023-09-01 05:15:42,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005808938] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:15:42,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:15:42,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:15:42,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492554780] [2023-09-01 05:15:42,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:15:42,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:15:42,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:15:42,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:15:42,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:15:42,808 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 206 [2023-09-01 05:15:42,808 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 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 05:15:42,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:15:42,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 206 [2023-09-01 05:15:42,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:15:43,067 INFO L130 PetriNetUnfolder]: 1105/1735 cut-off events. [2023-09-01 05:15:43,067 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2023-09-01 05:15:43,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4148 conditions, 1735 events. 1105/1735 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8422 event pairs, 368 based on Foata normal form. 0/1442 useless extension candidates. Maximal degree in co-relation 4137. Up to 1165 conditions per place. [2023-09-01 05:15:43,075 INFO L137 encePairwiseOnDemand]: 199/206 looper letters, 37 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2023-09-01 05:15:43,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 44 transitions, 204 flow [2023-09-01 05:15:43,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:15:43,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:15:43,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 416 transitions. [2023-09-01 05:15:43,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5048543689320388 [2023-09-01 05:15:43,078 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 416 transitions. [2023-09-01 05:15:43,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 416 transitions. [2023-09-01 05:15:43,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:15:43,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 416 transitions. [2023-09-01 05:15:43,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 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 05:15:43,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 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 05:15:43,082 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 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 05:15:43,082 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 100 flow. Second operand 4 states and 416 transitions. [2023-09-01 05:15:43,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 44 transitions, 204 flow [2023-09-01 05:15:43,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 44 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:15:43,084 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 92 flow [2023-09-01 05:15:43,084 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=92, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2023-09-01 05:15:43,085 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -1 predicate places. [2023-09-01 05:15:43,085 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 92 flow [2023-09-01 05:15:43,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 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 05:15:43,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:15:43,086 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:15:43,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:15:43,086 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:15:43,086 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:15:43,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1273608110, now seen corresponding path program 1 times [2023-09-01 05:15:43,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:15:43,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123520606] [2023-09-01 05:15:43,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:15:43,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:15:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:15:43,143 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 05:15:43,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:15:43,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123520606] [2023-09-01 05:15:43,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123520606] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:15:43,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:15:43,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:15:43,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249220546] [2023-09-01 05:15:43,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:15:43,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:15:43,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:15:43,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:15:43,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:15:43,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 206 [2023-09-01 05:15:43,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 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 05:15:43,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:15:43,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 206 [2023-09-01 05:15:43,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:15:43,375 INFO L130 PetriNetUnfolder]: 870/1370 cut-off events. [2023-09-01 05:15:43,375 INFO L131 PetriNetUnfolder]: For 462/462 co-relation queries the response was YES. [2023-09-01 05:15:43,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3231 conditions, 1370 events. 870/1370 cut-off events. For 462/462 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 6513 event pairs, 326 based on Foata normal form. 0/1255 useless extension candidates. Maximal degree in co-relation 3219. Up to 549 conditions per place. [2023-09-01 05:15:43,394 INFO L137 encePairwiseOnDemand]: 199/206 looper letters, 47 selfloop transitions, 7 changer transitions 3/60 dead transitions. [2023-09-01 05:15:43,394 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 60 transitions, 280 flow [2023-09-01 05:15:43,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:15:43,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:15:43,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2023-09-01 05:15:43,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5242718446601942 [2023-09-01 05:15:43,395 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 432 transitions. [2023-09-01 05:15:43,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 432 transitions. [2023-09-01 05:15:43,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:15:43,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 432 transitions. [2023-09-01 05:15:43,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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 05:15:43,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 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 05:15:43,399 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 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 05:15:43,399 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 92 flow. Second operand 4 states and 432 transitions. [2023-09-01 05:15:43,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 60 transitions, 280 flow [2023-09-01 05:15:43,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 60 transitions, 275 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:15:43,401 INFO L231 Difference]: Finished difference. Result has 40 places, 29 transitions, 113 flow [2023-09-01 05:15:43,402 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=113, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2023-09-01 05:15:43,403 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-09-01 05:15:43,405 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 113 flow [2023-09-01 05:15:43,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 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 05:15:43,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:15:43,405 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:15:43,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:15:43,406 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:15:43,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:15:43,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1050983181, now seen corresponding path program 1 times [2023-09-01 05:15:43,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:15:43,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777978862] [2023-09-01 05:15:43,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:15:43,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:15:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:15:43,542 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 05:15:43,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:15:43,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777978862] [2023-09-01 05:15:43,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777978862] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:15:43,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:15:43,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:15:43,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239772252] [2023-09-01 05:15:43,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:15:43,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:15:43,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:15:43,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:15:43,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:15:43,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 206 [2023-09-01 05:15:43,555 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 113 flow. Second operand has 5 states, 5 states have (on average 96.0) internal successors, (480), 5 states have internal predecessors, (480), 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 05:15:43,555 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:15:43,556 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 206 [2023-09-01 05:15:43,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:15:43,730 INFO L130 PetriNetUnfolder]: 838/1314 cut-off events. [2023-09-01 05:15:43,730 INFO L131 PetriNetUnfolder]: For 957/957 co-relation queries the response was YES. [2023-09-01 05:15:43,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3484 conditions, 1314 events. 838/1314 cut-off events. For 957/957 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 6257 event pairs, 326 based on Foata normal form. 18/1239 useless extension candidates. Maximal degree in co-relation 3471. Up to 549 conditions per place. [2023-09-01 05:15:43,733 INFO L137 encePairwiseOnDemand]: 199/206 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2023-09-01 05:15:43,734 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 54 transitions, 259 flow [2023-09-01 05:15:43,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:15:43,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:15:43,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 519 transitions. [2023-09-01 05:15:43,738 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.503883495145631 [2023-09-01 05:15:43,738 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 519 transitions. [2023-09-01 05:15:43,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 519 transitions. [2023-09-01 05:15:43,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:15:43,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 519 transitions. [2023-09-01 05:15:43,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 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 05:15:43,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 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 05:15:43,742 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 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 05:15:43,742 INFO L175 Difference]: Start difference. First operand has 40 places, 29 transitions, 113 flow. Second operand 5 states and 519 transitions. [2023-09-01 05:15:43,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 54 transitions, 259 flow [2023-09-01 05:15:43,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 54 transitions, 235 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-09-01 05:15:43,747 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2023-09-01 05:15:43,747 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2023-09-01 05:15:43,748 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -2 predicate places. [2023-09-01 05:15:43,748 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2023-09-01 05:15:43,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.0) internal successors, (480), 5 states have internal predecessors, (480), 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 05:15:43,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-09-01 05:15:43,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-09-01 05:15:43,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-09-01 05:15:43,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-09-01 05:15:43,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-09-01 05:15:43,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-09-01 05:15:43,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-09-01 05:15:43,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-09-01 05:15:43,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-09-01 05:15:43,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-09-01 05:15:43,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-09-01 05:15:43,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-09-01 05:15:43,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-09-01 05:15:43,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-09-01 05:15:43,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-09-01 05:15:43,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:15:43,753 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-09-01 05:15:43,757 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:15:43,757 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:15:43,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:15:43 BasicIcfg [2023-09-01 05:15:43,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:15:43,764 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:15:43,764 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:15:43,764 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:15:43,764 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:15:38" (3/4) ... [2023-09-01 05:15:43,766 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:15:43,769 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:15:43,769 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:15:43,769 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-09-01 05:15:43,773 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-09-01 05:15:43,773 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-09-01 05:15:43,773 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 05:15:43,773 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:15:43,802 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:15:43,803 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:15:43,803 INFO L158 Benchmark]: Toolchain (without parser) took 6235.91ms. Allocated memory was 58.7MB in the beginning and 151.0MB in the end (delta: 92.3MB). Free memory was 30.1MB in the beginning and 53.3MB in the end (delta: -23.2MB). Peak memory consumption was 70.1MB. Max. memory is 16.1GB. [2023-09-01 05:15:43,803 INFO L158 Benchmark]: CDTParser took 0.77ms. Allocated memory is still 58.7MB. Free memory is still 36.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:15:43,804 INFO L158 Benchmark]: CACSL2BoogieTranslator took 473.41ms. Allocated memory was 58.7MB in the beginning and 81.8MB in the end (delta: 23.1MB). Free memory was 30.0MB in the beginning and 43.5MB in the end (delta: -13.6MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2023-09-01 05:15:43,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.55ms. Allocated memory is still 81.8MB. Free memory was 43.5MB in the beginning and 41.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:15:43,804 INFO L158 Benchmark]: Boogie Preprocessor took 53.06ms. Allocated memory is still 81.8MB. Free memory was 41.1MB in the beginning and 60.8MB in the end (delta: -19.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:15:43,804 INFO L158 Benchmark]: RCFGBuilder took 660.78ms. Allocated memory is still 81.8MB. Free memory was 60.8MB in the beginning and 49.4MB in the end (delta: 11.3MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2023-09-01 05:15:43,804 INFO L158 Benchmark]: TraceAbstraction took 4943.20ms. Allocated memory was 81.8MB in the beginning and 151.0MB in the end (delta: 69.2MB). Free memory was 49.0MB in the beginning and 56.5MB in the end (delta: -7.5MB). Peak memory consumption was 82.5MB. Max. memory is 16.1GB. [2023-09-01 05:15:43,805 INFO L158 Benchmark]: Witness Printer took 38.87ms. Allocated memory is still 151.0MB. Free memory was 56.5MB in the beginning and 53.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:15:43,806 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77ms. Allocated memory is still 58.7MB. Free memory is still 36.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 473.41ms. Allocated memory was 58.7MB in the beginning and 81.8MB in the end (delta: 23.1MB). Free memory was 30.0MB in the beginning and 43.5MB in the end (delta: -13.6MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.55ms. Allocated memory is still 81.8MB. Free memory was 43.5MB in the beginning and 41.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.06ms. Allocated memory is still 81.8MB. Free memory was 41.1MB in the beginning and 60.8MB in the end (delta: -19.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 660.78ms. Allocated memory is still 81.8MB. Free memory was 60.8MB in the beginning and 49.4MB in the end (delta: 11.3MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4943.20ms. Allocated memory was 81.8MB in the beginning and 151.0MB in the end (delta: 69.2MB). Free memory was 49.0MB in the beginning and 56.5MB in the end (delta: -7.5MB). Peak memory consumption was 82.5MB. Max. memory is 16.1GB. * Witness Printer took 38.87ms. Allocated memory is still 151.0MB. Free memory was 56.5MB in the beginning and 53.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 119 PlacesBefore, 39 PlacesAfterwards, 111 TransitionsBefore, 30 TransitionsAfterwards, 2346 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 92 TotalNumberOfCompositions, 8878 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3776, independent: 3490, independent conditional: 0, independent unconditional: 3490, dependent: 286, dependent conditional: 0, dependent unconditional: 286, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1245, independent: 1201, independent conditional: 0, independent unconditional: 1201, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3776, independent: 2289, independent conditional: 0, independent unconditional: 2289, dependent: 242, dependent conditional: 0, dependent unconditional: 242, unknown: 1245, unknown conditional: 0, unknown unconditional: 1245] , Statistics on independence cache: Total cache size (in pairs): 160, Positive cache size: 138, Positive conditional cache size: 0, Positive unconditional cache size: 138, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 769]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 769]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: 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 7 procedures, 146 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 150 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 128 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 271 IncrementalHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 5 mSDtfsCounter, 271 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 123 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 05:15:43,826 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