./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe000_power.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_power.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 23eea01b75afdbb0ef381e4ddf0b030c295f59ec7a283af707e459bd9dd9c0c0 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 08:46:24,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:46:24,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:46:24,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:46:24,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:46:24,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:46:24,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:46:24,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:46:24,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:46:24,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:46:24,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:46:24,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:46:24,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:46:24,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:46:24,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:46:24,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:46:24,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:46:24,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:46:24,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:46:24,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:46:24,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:46:24,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:46:24,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:46:24,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:46:24,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:46:24,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:46:24,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:46:24,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:46:24,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:46:24,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:46:24,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:46:24,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:46:24,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:46:24,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:46:24,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:46:24,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:46:24,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:46:24,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:46:24,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:46:24,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:46:24,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:46:24,652 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:46:24,673 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:46:24,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:46:24,675 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:46:24,675 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:46:24,676 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:46:24,676 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:46:24,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:46:24,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:46:24,677 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:46:24,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:46:24,677 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:46:24,678 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:46:24,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:46:24,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:46:24,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:46:24,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:46:24,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:46:24,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:46:24,679 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:46:24,679 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:46:24,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:46:24,679 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:46:24,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:46:24,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:46:24,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:46:24,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:46:24,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:46:24,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:46:24,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:46:24,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:46:24,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:46:24,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:46:24,681 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:46:24,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:46:24,682 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:46:24,682 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:46:24,682 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:46:24,682 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23eea01b75afdbb0ef381e4ddf0b030c295f59ec7a283af707e459bd9dd9c0c0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:46:24,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:46:25,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:46:25,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:46:25,008 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:46:25,008 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:46:25,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_power.opt.i [2023-08-30 08:46:26,233 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:46:26,475 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:46:26,476 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_power.opt.i [2023-08-30 08:46:26,488 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd5a3be1d/9e9e5bc7ba9b4228a9760b2f221d56e0/FLAG255e67d35 [2023-08-30 08:46:26,499 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd5a3be1d/9e9e5bc7ba9b4228a9760b2f221d56e0 [2023-08-30 08:46:26,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:46:26,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:46:26,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:46:26,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:46:26,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:46:26,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:46:26" (1/1) ... [2023-08-30 08:46:26,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1296615b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:46:26, skipping insertion in model container [2023-08-30 08:46:26,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:46:26" (1/1) ... [2023-08-30 08:46:26,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:46:26,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:46:26,732 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/safe000_power.opt.i[951,964] [2023-08-30 08:46:26,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:46:26,967 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:46:26,978 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/safe000_power.opt.i[951,964] [2023-08-30 08:46:27,045 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:46:27,085 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:46:27,085 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:46:27,091 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:46:27,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:46:27 WrapperNode [2023-08-30 08:46:27,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:46:27,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:46:27,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:46:27,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:46:27,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:46:27" (1/1) ... [2023-08-30 08:46:27,139 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:46:27" (1/1) ... [2023-08-30 08:46:27,160 INFO L138 Inliner]: procedures = 176, calls = 73, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 183 [2023-08-30 08:46:27,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:46:27,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:46:27,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:46:27,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:46:27,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:46:27" (1/1) ... [2023-08-30 08:46:27,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:46:27" (1/1) ... [2023-08-30 08:46:27,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:46:27" (1/1) ... [2023-08-30 08:46:27,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:46:27" (1/1) ... [2023-08-30 08:46:27,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:46:27" (1/1) ... [2023-08-30 08:46:27,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:46:27" (1/1) ... [2023-08-30 08:46:27,189 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:46:27" (1/1) ... [2023-08-30 08:46:27,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:46:27" (1/1) ... [2023-08-30 08:46:27,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:46:27,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:46:27,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:46:27,195 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:46:27,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:46:27" (1/1) ... [2023-08-30 08:46:27,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:46:27,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:46:27,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 08:46:27,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 08:46:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 08:46:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:46:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:46:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:46:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:46:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:46:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:46:27,270 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:46:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:46:27,270 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:46:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 08:46:27,271 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 08:46:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:46:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:46:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:46:27,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:46:27,272 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 08:46:27,430 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:46:27,431 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:46:27,885 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:46:28,148 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:46:28,148 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:46:28,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:46:28 BoogieIcfgContainer [2023-08-30 08:46:28,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:46:28,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:46:28,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:46:28,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:46:28,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:46:26" (1/3) ... [2023-08-30 08:46:28,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ebd920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:46:28, skipping insertion in model container [2023-08-30 08:46:28,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:46:27" (2/3) ... [2023-08-30 08:46:28,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ebd920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:46:28, skipping insertion in model container [2023-08-30 08:46:28,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:46:28" (3/3) ... [2023-08-30 08:46:28,157 INFO L112 eAbstractionObserver]: Analyzing ICFG safe000_power.opt.i [2023-08-30 08:46:28,163 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:46:28,170 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:46:28,171 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 08:46:28,171 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:46:28,237 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:46:28,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 131 transitions, 277 flow [2023-08-30 08:46:28,349 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2023-08-30 08:46:28,349 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:46:28,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 128 events. 2/128 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. 0/120 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-08-30 08:46:28,355 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 131 transitions, 277 flow [2023-08-30 08:46:28,366 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 128 transitions, 265 flow [2023-08-30 08:46:28,373 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:46:28,384 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 128 transitions, 265 flow [2023-08-30 08:46:28,386 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 128 transitions, 265 flow [2023-08-30 08:46:28,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 128 transitions, 265 flow [2023-08-30 08:46:28,427 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2023-08-30 08:46:28,427 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:46:28,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 128 events. 2/128 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. 0/120 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-08-30 08:46:28,431 INFO L119 LiptonReduction]: Number of co-enabled transitions 2376 [2023-08-30 08:46:36,182 INFO L134 LiptonReduction]: Checked pairs total: 8390 [2023-08-30 08:46:36,182 INFO L136 LiptonReduction]: Total number of compositions: 109 [2023-08-30 08:46:36,194 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:46:36,199 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;@13e70942, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:46:36,199 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-30 08:46:36,207 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 08:46:36,207 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:46:36,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:46:36,208 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:46:36,208 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:46:36,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:46:36,212 INFO L85 PathProgramCache]: Analyzing trace with hash -549431338, now seen corresponding path program 1 times [2023-08-30 08:46:36,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:46:36,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833067564] [2023-08-30 08:46:36,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:46:36,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:46:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:46:36,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:46:36,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:46:36,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833067564] [2023-08-30 08:46:36,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833067564] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:46:36,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:46:36,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:46:36,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522161273] [2023-08-30 08:46:36,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:46:36,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:46:36,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:46:36,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:46:36,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:46:36,623 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 240 [2023-08-30 08:46:36,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:36,628 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:46:36,628 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 240 [2023-08-30 08:46:36,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:46:37,073 INFO L130 PetriNetUnfolder]: 1117/1758 cut-off events. [2023-08-30 08:46:37,074 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2023-08-30 08:46:37,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3551 conditions, 1758 events. 1117/1758 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 8385 event pairs, 381 based on Foata normal form. 0/1453 useless extension candidates. Maximal degree in co-relation 3540. Up to 1247 conditions per place. [2023-08-30 08:46:37,086 INFO L137 encePairwiseOnDemand]: 230/240 looper letters, 38 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2023-08-30 08:46:37,087 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 44 transitions, 187 flow [2023-08-30 08:46:37,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:46:37,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:46:37,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2023-08-30 08:46:37,098 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5166666666666667 [2023-08-30 08:46:37,099 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 372 transitions. [2023-08-30 08:46:37,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 372 transitions. [2023-08-30 08:46:37,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:46:37,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 372 transitions. [2023-08-30 08:46:37,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:37,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:37,111 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:37,113 INFO L175 Difference]: Start difference. First operand has 37 places, 27 transitions, 63 flow. Second operand 3 states and 372 transitions. [2023-08-30 08:46:37,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 44 transitions, 187 flow [2023-08-30 08:46:37,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 44 transitions, 182 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:46:37,117 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 96 flow [2023-08-30 08:46:37,119 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2023-08-30 08:46:37,123 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 0 predicate places. [2023-08-30 08:46:37,124 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 96 flow [2023-08-30 08:46:37,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:37,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:46:37,125 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:46:37,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:46:37,126 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:46:37,126 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:46:37,126 INFO L85 PathProgramCache]: Analyzing trace with hash -798122238, now seen corresponding path program 1 times [2023-08-30 08:46:37,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:46:37,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101282381] [2023-08-30 08:46:37,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:46:37,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:46:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:46:37,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:46:37,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:46:37,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101282381] [2023-08-30 08:46:37,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101282381] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:46:37,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:46:37,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:46:37,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58999039] [2023-08-30 08:46:37,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:46:37,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:46:37,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:46:37,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:46:37,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:46:37,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 240 [2023-08-30 08:46:37,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:37,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:46:37,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 240 [2023-08-30 08:46:37,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:46:37,657 INFO L130 PetriNetUnfolder]: 901/1410 cut-off events. [2023-08-30 08:46:37,657 INFO L131 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2023-08-30 08:46:37,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3387 conditions, 1410 events. 901/1410 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 6415 event pairs, 333 based on Foata normal form. 0/1273 useless extension candidates. Maximal degree in co-relation 3376. Up to 898 conditions per place. [2023-08-30 08:46:37,664 INFO L137 encePairwiseOnDemand]: 233/240 looper letters, 35 selfloop transitions, 4 changer transitions 0/41 dead transitions. [2023-08-30 08:46:37,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 41 transitions, 194 flow [2023-08-30 08:46:37,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:46:37,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:46:37,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 474 transitions. [2023-08-30 08:46:37,669 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49375 [2023-08-30 08:46:37,669 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 474 transitions. [2023-08-30 08:46:37,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 474 transitions. [2023-08-30 08:46:37,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:46:37,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 474 transitions. [2023-08-30 08:46:37,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:37,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:37,676 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:37,676 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 96 flow. Second operand 4 states and 474 transitions. [2023-08-30 08:46:37,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 41 transitions, 194 flow [2023-08-30 08:46:37,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 41 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:46:37,679 INFO L231 Difference]: Finished difference. Result has 36 places, 27 transitions, 88 flow [2023-08-30 08:46:37,680 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2023-08-30 08:46:37,680 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2023-08-30 08:46:37,680 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 88 flow [2023-08-30 08:46:37,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:37,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:46:37,681 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:46:37,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:46:37,682 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:46:37,684 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:46:37,684 INFO L85 PathProgramCache]: Analyzing trace with hash -798122237, now seen corresponding path program 1 times [2023-08-30 08:46:37,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:46:37,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436060158] [2023-08-30 08:46:37,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:46:37,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:46:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:46:37,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:46:37,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:46:37,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436060158] [2023-08-30 08:46:37,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436060158] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:46:37,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:46:37,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:46:37,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27030264] [2023-08-30 08:46:37,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:46:37,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:46:37,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:46:37,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:46:37,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:46:37,829 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 240 [2023-08-30 08:46:37,830 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:37,830 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:46:37,830 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 240 [2023-08-30 08:46:37,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:46:38,135 INFO L130 PetriNetUnfolder]: 736/1149 cut-off events. [2023-08-30 08:46:38,136 INFO L131 PetriNetUnfolder]: For 368/368 co-relation queries the response was YES. [2023-08-30 08:46:38,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2730 conditions, 1149 events. 736/1149 cut-off events. For 368/368 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 5053 event pairs, 305 based on Foata normal form. 0/1120 useless extension candidates. Maximal degree in co-relation 2718. Up to 482 conditions per place. [2023-08-30 08:46:38,141 INFO L137 encePairwiseOnDemand]: 233/240 looper letters, 44 selfloop transitions, 7 changer transitions 3/56 dead transitions. [2023-08-30 08:46:38,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 56 transitions, 266 flow [2023-08-30 08:46:38,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:46:38,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:46:38,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 489 transitions. [2023-08-30 08:46:38,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.509375 [2023-08-30 08:46:38,159 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 489 transitions. [2023-08-30 08:46:38,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 489 transitions. [2023-08-30 08:46:38,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:46:38,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 489 transitions. [2023-08-30 08:46:38,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 122.25) internal successors, (489), 4 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:38,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:38,163 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:38,164 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 88 flow. Second operand 4 states and 489 transitions. [2023-08-30 08:46:38,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 56 transitions, 266 flow [2023-08-30 08:46:38,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 56 transitions, 261 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 08:46:38,166 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 109 flow [2023-08-30 08:46:38,166 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2023-08-30 08:46:38,167 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 1 predicate places. [2023-08-30 08:46:38,167 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 109 flow [2023-08-30 08:46:38,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:38,168 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:46:38,168 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:46:38,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:46:38,168 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 08:46:38,169 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:46:38,169 INFO L85 PathProgramCache]: Analyzing trace with hash 755915266, now seen corresponding path program 1 times [2023-08-30 08:46:38,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:46:38,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423700628] [2023-08-30 08:46:38,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:46:38,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:46:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:46:38,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:46:38,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:46:38,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423700628] [2023-08-30 08:46:38,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423700628] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:46:38,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:46:38,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:46:38,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749310219] [2023-08-30 08:46:38,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:46:38,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:46:38,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:46:38,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:46:38,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:46:38,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 240 [2023-08-30 08:46:38,310 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 111.2) internal successors, (556), 5 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:38,310 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:46:38,310 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 240 [2023-08-30 08:46:38,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:46:38,607 INFO L130 PetriNetUnfolder]: 716/1113 cut-off events. [2023-08-30 08:46:38,607 INFO L131 PetriNetUnfolder]: For 774/774 co-relation queries the response was YES. [2023-08-30 08:46:38,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2951 conditions, 1113 events. 716/1113 cut-off events. For 774/774 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4930 event pairs, 305 based on Foata normal form. 12/1108 useless extension candidates. Maximal degree in co-relation 2938. Up to 482 conditions per place. [2023-08-30 08:46:38,610 INFO L137 encePairwiseOnDemand]: 233/240 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2023-08-30 08:46:38,610 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 50 transitions, 245 flow [2023-08-30 08:46:38,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:46:38,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:46:38,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 591 transitions. [2023-08-30 08:46:38,613 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4925 [2023-08-30 08:46:38,613 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 591 transitions. [2023-08-30 08:46:38,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 591 transitions. [2023-08-30 08:46:38,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:46:38,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 591 transitions. [2023-08-30 08:46:38,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:38,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:38,618 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:38,618 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 109 flow. Second operand 5 states and 591 transitions. [2023-08-30 08:46:38,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 50 transitions, 245 flow [2023-08-30 08:46:38,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 50 transitions, 221 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-30 08:46:38,621 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-30 08:46:38,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-30 08:46:38,621 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2023-08-30 08:46:38,622 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-30 08:46:38,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.2) internal successors, (556), 5 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:46:38,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-08-30 08:46:38,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-08-30 08:46:38,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-08-30 08:46:38,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-08-30 08:46:38,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-08-30 08:46:38,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-08-30 08:46:38,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-30 08:46:38,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-08-30 08:46:38,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-08-30 08:46:38,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-08-30 08:46:38,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-08-30 08:46:38,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-08-30 08:46:38,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-08-30 08:46:38,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-08-30 08:46:38,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-08-30 08:46:38,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:46:38,628 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 08:46:38,631 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:46:38,632 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:46:38,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:46:38 BasicIcfg [2023-08-30 08:46:38,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:46:38,643 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:46:38,643 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:46:38,643 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:46:38,643 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:46:28" (3/4) ... [2023-08-30 08:46:38,645 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:46:38,649 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:46:38,649 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:46:38,649 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 08:46:38,654 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2023-08-30 08:46:38,655 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-08-30 08:46:38,655 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 08:46:38,655 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:46:38,701 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:46:38,701 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:46:38,702 INFO L158 Benchmark]: Toolchain (without parser) took 12199.74ms. Allocated memory was 65.0MB in the beginning and 230.7MB in the end (delta: 165.7MB). Free memory was 43.6MB in the beginning and 101.4MB in the end (delta: -57.8MB). Peak memory consumption was 107.7MB. Max. memory is 16.1GB. [2023-08-30 08:46:38,702 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory is still 42.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:46:38,703 INFO L158 Benchmark]: CACSL2BoogieTranslator took 588.23ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 43.4MB in the beginning and 50.2MB in the end (delta: -6.8MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2023-08-30 08:46:38,703 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.68ms. Allocated memory is still 81.8MB. Free memory was 50.2MB in the beginning and 47.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:46:38,703 INFO L158 Benchmark]: Boogie Preprocessor took 32.56ms. Allocated memory is still 81.8MB. Free memory was 47.7MB in the beginning and 45.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:46:38,703 INFO L158 Benchmark]: RCFGBuilder took 955.66ms. Allocated memory is still 81.8MB. Free memory was 45.3MB in the beginning and 45.3MB in the end (delta: -5.6kB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2023-08-30 08:46:38,704 INFO L158 Benchmark]: TraceAbstraction took 10490.42ms. Allocated memory was 81.8MB in the beginning and 230.7MB in the end (delta: 148.9MB). Free memory was 44.2MB in the beginning and 105.6MB in the end (delta: -61.3MB). Peak memory consumption was 130.6MB. Max. memory is 16.1GB. [2023-08-30 08:46:38,704 INFO L158 Benchmark]: Witness Printer took 58.96ms. Allocated memory is still 230.7MB. Free memory was 105.6MB in the beginning and 101.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:46:38,706 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory is still 42.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 588.23ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 43.4MB in the beginning and 50.2MB in the end (delta: -6.8MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.68ms. Allocated memory is still 81.8MB. Free memory was 50.2MB in the beginning and 47.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.56ms. Allocated memory is still 81.8MB. Free memory was 47.7MB in the beginning and 45.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 955.66ms. Allocated memory is still 81.8MB. Free memory was 45.3MB in the beginning and 45.3MB in the end (delta: -5.6kB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * TraceAbstraction took 10490.42ms. Allocated memory was 81.8MB in the beginning and 230.7MB in the end (delta: 148.9MB). Free memory was 44.2MB in the beginning and 105.6MB in the end (delta: -61.3MB). Peak memory consumption was 130.6MB. Max. memory is 16.1GB. * Witness Printer took 58.96ms. Allocated memory is still 230.7MB. Free memory was 105.6MB in the beginning and 101.4MB in the end (delta: 4.2MB). 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: 7.8s, 136 PlacesBefore, 37 PlacesAfterwards, 128 TransitionsBefore, 27 TransitionsAfterwards, 2376 CoEnabledTransitionPairs, 7 FixpointIterations, 57 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 109 TotalNumberOfCompositions, 8390 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2757, independent: 2475, independent conditional: 0, independent unconditional: 2475, dependent: 282, dependent conditional: 0, dependent unconditional: 282, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1313, independent: 1245, independent conditional: 0, independent unconditional: 1245, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2757, independent: 1230, independent conditional: 0, independent unconditional: 1230, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 1313, unknown conditional: 0, unknown unconditional: 1313] , Statistics on independence cache: Total cache size (in pairs): 146, Positive cache size: 122, Positive conditional cache size: 0, Positive unconditional cache size: 122, 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: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: 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, 163 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: 10.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 259 IncrementalHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 10 mSDtfsCounter, 259 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=109occurred 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, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 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! [2023-08-30 08:46:38,734 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