./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix055_power.oepc_pso.oepc_rmo.oepc.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/mix055_power.oepc_pso.oepc_rmo.oepc.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 b8efebf87dc67f98045ac231dc43d6a61f436e058244f16134f1d46d3b696c80 --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 05:22:11,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:22:11,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:22:11,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:22:11,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:22:11,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:22:11,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:22:11,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:22:11,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:22:11,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:22:11,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:22:11,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:22:11,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:22:11,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:22:11,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:22:11,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:22:11,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:22:11,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:22:11,542 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:22:11,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:22:11,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:22:11,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:22:11,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:22:11,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:22:11,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:22:11,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:22:11,563 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:22:11,564 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:22:11,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:22:11,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:22:11,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:22:11,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:22:11,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:22:11,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:22:11,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:22:11,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:22:11,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:22:11,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:22:11,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:22:11,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:22:11,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:22:11,572 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:22:11,593 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:22:11,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:22:11,594 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:22:11,594 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:22:11,595 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:22:11,595 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:22:11,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:22:11,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:22:11,596 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:22:11,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:22:11,596 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:22:11,597 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:22:11,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:22:11,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:22:11,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:22:11,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:22:11,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:22:11,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:22:11,598 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:22:11,598 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:22:11,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:22:11,599 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:22:11,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:22:11,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:22:11,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:22:11,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:22:11,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:22:11,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:22:11,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:22:11,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:22:11,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:22:11,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:22:11,601 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:22:11,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:22:11,602 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:22:11,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:22:11,602 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:22:11,602 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8efebf87dc67f98045ac231dc43d6a61f436e058244f16134f1d46d3b696c80 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:22:11,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:22:11,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:22:11,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:22:11,930 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:22:11,930 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:22:11,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix055_power.oepc_pso.oepc_rmo.oepc.i [2023-09-01 05:22:13,194 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:22:13,523 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:22:13,523 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix055_power.oepc_pso.oepc_rmo.oepc.i [2023-09-01 05:22:13,555 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7b53421c/2fb4df00c9494730b23ad8a6a2f861b8/FLAG49f1b3b40 [2023-09-01 05:22:13,577 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7b53421c/2fb4df00c9494730b23ad8a6a2f861b8 [2023-09-01 05:22:13,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:22:13,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:22:13,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:22:13,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:22:13,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:22:13,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:22:13" (1/1) ... [2023-09-01 05:22:13,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@124c75df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:13, skipping insertion in model container [2023-09-01 05:22:13,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:22:13" (1/1) ... [2023-09-01 05:22:13,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:22:13,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:22:13,774 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/mix055_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-09-01 05:22:13,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:22:13,929 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:22:13,961 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/mix055_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-09-01 05:22:14,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:22:14,036 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:22:14,037 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:22:14,043 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:22:14,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:14 WrapperNode [2023-09-01 05:22:14,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:22:14,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:22:14,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:22:14,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:22:14,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:14" (1/1) ... [2023-09-01 05:22:14,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:14" (1/1) ... [2023-09-01 05:22:14,112 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2023-09-01 05:22:14,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:22:14,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:22:14,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:22:14,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:22:14,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:14" (1/1) ... [2023-09-01 05:22:14,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:14" (1/1) ... [2023-09-01 05:22:14,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:14" (1/1) ... [2023-09-01 05:22:14,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:14" (1/1) ... [2023-09-01 05:22:14,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:14" (1/1) ... [2023-09-01 05:22:14,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:14" (1/1) ... [2023-09-01 05:22:14,162 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:14" (1/1) ... [2023-09-01 05:22:14,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:14" (1/1) ... [2023-09-01 05:22:14,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:22:14,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:22:14,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:22:14,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:22:14,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:14" (1/1) ... [2023-09-01 05:22:14,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:22:14,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:22:14,210 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 05:22:14,226 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 05:22:14,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:22:14,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:22:14,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:22:14,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:22:14,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:22:14,251 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:22:14,251 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:22:14,251 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:22:14,251 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:22:14,252 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-09-01 05:22:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-09-01 05:22:14,252 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-09-01 05:22:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-09-01 05:22:14,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:22:14,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:22:14,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:22:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:22:14,254 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 05:22:14,422 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:22:14,424 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:22:14,744 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:22:14,852 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:22:14,852 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:22:14,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:22:14 BoogieIcfgContainer [2023-09-01 05:22:14,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:22:14,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:22:14,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:22:14,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:22:14,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:22:13" (1/3) ... [2023-09-01 05:22:14,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b7eff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:22:14, skipping insertion in model container [2023-09-01 05:22:14,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:22:14" (2/3) ... [2023-09-01 05:22:14,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b7eff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:22:14, skipping insertion in model container [2023-09-01 05:22:14,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:22:14" (3/3) ... [2023-09-01 05:22:14,862 INFO L112 eAbstractionObserver]: Analyzing ICFG mix055_power.oepc_pso.oepc_rmo.oepc.i [2023-09-01 05:22:14,888 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:22:14,896 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:22:14,897 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-09-01 05:22:14,897 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:22:14,947 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:22:14,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 134 transitions, 288 flow [2023-09-01 05:22:15,059 INFO L130 PetriNetUnfolder]: 2/130 cut-off events. [2023-09-01 05:22:15,060 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:22:15,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 130 events. 2/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-09-01 05:22:15,066 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 134 transitions, 288 flow [2023-09-01 05:22:15,074 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 130 transitions, 272 flow [2023-09-01 05:22:15,079 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:22:15,087 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 130 transitions, 272 flow [2023-09-01 05:22:15,090 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 130 transitions, 272 flow [2023-09-01 05:22:15,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 130 transitions, 272 flow [2023-09-01 05:22:15,121 INFO L130 PetriNetUnfolder]: 2/130 cut-off events. [2023-09-01 05:22:15,121 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:22:15,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 130 events. 2/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-09-01 05:22:15,124 INFO L119 LiptonReduction]: Number of co-enabled transitions 3888 [2023-09-01 05:22:19,011 INFO L134 LiptonReduction]: Checked pairs total: 14371 [2023-09-01 05:22:19,011 INFO L136 LiptonReduction]: Total number of compositions: 105 [2023-09-01 05:22:19,023 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:22:19,028 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;@231f16ae, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:22:19,028 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-09-01 05:22:19,034 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-09-01 05:22:19,034 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:22:19,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:22:19,035 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 05:22:19,035 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:22:19,044 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:22:19,044 INFO L85 PathProgramCache]: Analyzing trace with hash -61348856, now seen corresponding path program 1 times [2023-09-01 05:22:19,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:22:19,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486843128] [2023-09-01 05:22:19,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:22:19,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:22:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:22:19,311 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 05:22:19,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:22:19,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486843128] [2023-09-01 05:22:19,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486843128] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:22:19,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:22:19,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:22:19,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106947379] [2023-09-01 05:22:19,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:22:19,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:22:19,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:22:19,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:22:19,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:22:19,375 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 239 [2023-09-01 05:22:19,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 35 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 05:22:19,378 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:22:19,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 239 [2023-09-01 05:22:19,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:22:21,062 INFO L130 PetriNetUnfolder]: 9717/13507 cut-off events. [2023-09-01 05:22:21,063 INFO L131 PetriNetUnfolder]: For 127/127 co-relation queries the response was YES. [2023-09-01 05:22:21,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27281 conditions, 13507 events. 9717/13507 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 73536 event pairs, 2763 based on Foata normal form. 0/10178 useless extension candidates. Maximal degree in co-relation 27269. Up to 11755 conditions per place. [2023-09-01 05:22:21,171 INFO L137 encePairwiseOnDemand]: 226/239 looper letters, 49 selfloop transitions, 5 changer transitions 0/57 dead transitions. [2023-09-01 05:22:21,172 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 57 transitions, 243 flow [2023-09-01 05:22:21,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:22:21,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:22:21,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2023-09-01 05:22:21,189 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5341701534170153 [2023-09-01 05:22:21,190 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2023-09-01 05:22:21,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2023-09-01 05:22:21,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:22:21,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2023-09-01 05:22:21,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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 05:22:21,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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 05:22:21,208 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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 05:22:21,210 INFO L175 Difference]: Start difference. First operand has 48 places, 35 transitions, 82 flow. Second operand 3 states and 383 transitions. [2023-09-01 05:22:21,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 57 transitions, 243 flow [2023-09-01 05:22:21,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 57 transitions, 236 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 05:22:21,219 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 125 flow [2023-09-01 05:22:21,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-09-01 05:22:21,226 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-09-01 05:22:21,229 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 125 flow [2023-09-01 05:22:21,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 05:22:21,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:22:21,230 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:22:21,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:22:21,231 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:22:21,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:22:21,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1264631788, now seen corresponding path program 1 times [2023-09-01 05:22:21,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:22:21,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021057108] [2023-09-01 05:22:21,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:22:21,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:22:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:22:21,381 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 05:22:21,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:22:21,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021057108] [2023-09-01 05:22:21,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021057108] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:22:21,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:22:21,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:22:21,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957913990] [2023-09-01 05:22:21,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:22:21,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:22:21,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:22:21,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:22:21,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:22:21,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 239 [2023-09-01 05:22:21,396 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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 05:22:21,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:22:21,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 239 [2023-09-01 05:22:21,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:22:22,523 INFO L130 PetriNetUnfolder]: 6207/8605 cut-off events. [2023-09-01 05:22:22,524 INFO L131 PetriNetUnfolder]: For 502/502 co-relation queries the response was YES. [2023-09-01 05:22:22,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20912 conditions, 8605 events. 6207/8605 cut-off events. For 502/502 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 44432 event pairs, 1715 based on Foata normal form. 0/7450 useless extension candidates. Maximal degree in co-relation 20901. Up to 6852 conditions per place. [2023-09-01 05:22:22,606 INFO L137 encePairwiseOnDemand]: 230/239 looper letters, 45 selfloop transitions, 5 changer transitions 0/53 dead transitions. [2023-09-01 05:22:22,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 53 transitions, 251 flow [2023-09-01 05:22:22,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:22:22,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:22:22,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 482 transitions. [2023-09-01 05:22:22,610 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.50418410041841 [2023-09-01 05:22:22,610 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 482 transitions. [2023-09-01 05:22:22,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 482 transitions. [2023-09-01 05:22:22,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:22:22,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 482 transitions. [2023-09-01 05:22:22,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 120.5) internal successors, (482), 4 states have internal predecessors, (482), 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 05:22:22,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 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 05:22:22,615 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 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 05:22:22,615 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 125 flow. Second operand 4 states and 482 transitions. [2023-09-01 05:22:22,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 53 transitions, 251 flow [2023-09-01 05:22:22,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 53 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:22:22,619 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 114 flow [2023-09-01 05:22:22,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=114, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2023-09-01 05:22:22,621 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-09-01 05:22:22,621 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 114 flow [2023-09-01 05:22:22,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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 05:22:22,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:22:22,622 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:22:22,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:22:22,622 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:22:22,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:22:22,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1264631789, now seen corresponding path program 1 times [2023-09-01 05:22:22,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:22:22,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008122756] [2023-09-01 05:22:22,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:22:22,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:22:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:22:22,799 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 05:22:22,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:22:22,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008122756] [2023-09-01 05:22:22,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008122756] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:22:22,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:22:22,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:22:22,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942224618] [2023-09-01 05:22:22,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:22:22,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:22:22,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:22:22,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:22:22,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:22:22,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 239 [2023-09-01 05:22:22,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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 05:22:22,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:22:22,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 239 [2023-09-01 05:22:22,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:22:23,559 INFO L130 PetriNetUnfolder]: 4260/5936 cut-off events. [2023-09-01 05:22:23,560 INFO L131 PetriNetUnfolder]: For 1612/1612 co-relation queries the response was YES. [2023-09-01 05:22:23,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14241 conditions, 5936 events. 4260/5936 cut-off events. For 1612/1612 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 29537 event pairs, 1261 based on Foata normal form. 0/5697 useless extension candidates. Maximal degree in co-relation 14229. Up to 2277 conditions per place. [2023-09-01 05:22:23,589 INFO L137 encePairwiseOnDemand]: 230/239 looper letters, 61 selfloop transitions, 9 changer transitions 0/73 dead transitions. [2023-09-01 05:22:23,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 73 transitions, 348 flow [2023-09-01 05:22:23,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:22:23,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:22:23,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 502 transitions. [2023-09-01 05:22:23,591 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5251046025104602 [2023-09-01 05:22:23,591 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 502 transitions. [2023-09-01 05:22:23,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 502 transitions. [2023-09-01 05:22:23,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:22:23,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 502 transitions. [2023-09-01 05:22:23,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 125.5) internal successors, (502), 4 states have internal predecessors, (502), 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 05:22:23,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 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 05:22:23,596 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 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 05:22:23,596 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 114 flow. Second operand 4 states and 502 transitions. [2023-09-01 05:22:23,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 73 transitions, 348 flow [2023-09-01 05:22:23,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 73 transitions, 342 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:22:23,600 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 166 flow [2023-09-01 05:22:23,600 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-09-01 05:22:23,601 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-09-01 05:22:23,601 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 166 flow [2023-09-01 05:22:23,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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 05:22:23,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:22:23,602 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 05:22:23,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:22:23,602 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:22:23,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:22:23,603 INFO L85 PathProgramCache]: Analyzing trace with hash -101637632, now seen corresponding path program 1 times [2023-09-01 05:22:23,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:22:23,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414743837] [2023-09-01 05:22:23,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:22:23,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:22:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:22:23,693 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 05:22:23,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:22:23,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414743837] [2023-09-01 05:22:23,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414743837] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:22:23,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:22:23,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:22:23,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345803014] [2023-09-01 05:22:23,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:22:23,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:22:23,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:22:23,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:22:23,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:22:23,707 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 239 [2023-09-01 05:22:23,708 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 110.0) internal successors, (550), 5 states have internal predecessors, (550), 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 05:22:23,708 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:22:23,708 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 239 [2023-09-01 05:22:23,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:22:24,413 INFO L130 PetriNetUnfolder]: 3939/5429 cut-off events. [2023-09-01 05:22:24,414 INFO L131 PetriNetUnfolder]: For 3330/3330 co-relation queries the response was YES. [2023-09-01 05:22:24,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14854 conditions, 5429 events. 3939/5429 cut-off events. For 3330/3330 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 26563 event pairs, 1217 based on Foata normal form. 0/5400 useless extension candidates. Maximal degree in co-relation 14841. Up to 2277 conditions per place. [2023-09-01 05:22:24,450 INFO L137 encePairwiseOnDemand]: 230/239 looper letters, 71 selfloop transitions, 13 changer transitions 4/91 dead transitions. [2023-09-01 05:22:24,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 91 transitions, 474 flow [2023-09-01 05:22:24,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:22:24,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:22:24,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 627 transitions. [2023-09-01 05:22:24,453 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5246861924686193 [2023-09-01 05:22:24,453 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 627 transitions. [2023-09-01 05:22:24,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 627 transitions. [2023-09-01 05:22:24,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:22:24,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 627 transitions. [2023-09-01 05:22:24,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 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 05:22:24,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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 05:22:24,458 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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 05:22:24,458 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 166 flow. Second operand 5 states and 627 transitions. [2023-09-01 05:22:24,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 91 transitions, 474 flow [2023-09-01 05:22:24,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 91 transitions, 456 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-09-01 05:22:24,469 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 190 flow [2023-09-01 05:22:24,469 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=190, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2023-09-01 05:22:24,471 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 2 predicate places. [2023-09-01 05:22:24,471 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 190 flow [2023-09-01 05:22:24,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.0) internal successors, (550), 5 states have internal predecessors, (550), 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 05:22:24,472 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:22:24,472 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:22:24,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:22:24,472 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:22:24,473 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:22:24,473 INFO L85 PathProgramCache]: Analyzing trace with hash -983334695, now seen corresponding path program 1 times [2023-09-01 05:22:24,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:22:24,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058604015] [2023-09-01 05:22:24,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:22:24,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:22:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:22:24,655 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 05:22:24,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:22:24,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058604015] [2023-09-01 05:22:24,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058604015] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:22:24,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:22:24,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:22:24,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598914601] [2023-09-01 05:22:24,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:22:24,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:22:24,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:22:24,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:22:24,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:22:24,665 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 239 [2023-09-01 05:22:24,666 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 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 05:22:24,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:22:24,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 239 [2023-09-01 05:22:24,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:22:25,389 INFO L130 PetriNetUnfolder]: 3912/5382 cut-off events. [2023-09-01 05:22:25,389 INFO L131 PetriNetUnfolder]: For 4036/4036 co-relation queries the response was YES. [2023-09-01 05:22:25,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15085 conditions, 5382 events. 3912/5382 cut-off events. For 4036/4036 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 26372 event pairs, 1217 based on Foata normal form. 16/5385 useless extension candidates. Maximal degree in co-relation 15071. Up to 2277 conditions per place. [2023-09-01 05:22:25,410 INFO L137 encePairwiseOnDemand]: 230/239 looper letters, 0 selfloop transitions, 0 changer transitions 83/83 dead transitions. [2023-09-01 05:22:25,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 83 transitions, 426 flow [2023-09-01 05:22:25,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:22:25,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:22:25,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 726 transitions. [2023-09-01 05:22:25,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5062761506276151 [2023-09-01 05:22:25,413 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 726 transitions. [2023-09-01 05:22:25,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 726 transitions. [2023-09-01 05:22:25,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:22:25,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 726 transitions. [2023-09-01 05:22:25,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.0) internal successors, (726), 6 states have internal predecessors, (726), 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 05:22:25,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 239.0) internal successors, (1673), 7 states have internal predecessors, (1673), 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 05:22:25,419 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 239.0) internal successors, (1673), 7 states have internal predecessors, (1673), 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 05:22:25,419 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 190 flow. Second operand 6 states and 726 transitions. [2023-09-01 05:22:25,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 83 transitions, 426 flow [2023-09-01 05:22:25,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 83 transitions, 371 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-09-01 05:22:25,491 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2023-09-01 05:22:25,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2023-09-01 05:22:25,492 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-09-01 05:22:25,492 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2023-09-01 05:22:25,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 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 05:22:25,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-09-01 05:22:25,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-09-01 05:22:25,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-09-01 05:22:25,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-09-01 05:22:25,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-09-01 05:22:25,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-09-01 05:22:25,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-09-01 05:22:25,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-09-01 05:22:25,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-09-01 05:22:25,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-09-01 05:22:25,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-09-01 05:22:25,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-09-01 05:22:25,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-09-01 05:22:25,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-09-01 05:22:25,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-09-01 05:22:25,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-09-01 05:22:25,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-09-01 05:22:25,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-09-01 05:22:25,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-09-01 05:22:25,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-09-01 05:22:25,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 05:22:25,501 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-09-01 05:22:25,506 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:22:25,506 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:22:25,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:22:25 BasicIcfg [2023-09-01 05:22:25,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:22:25,510 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:22:25,510 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:22:25,511 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:22:25,511 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:22:14" (3/4) ... [2023-09-01 05:22:25,513 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:22:25,518 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:22:25,518 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:22:25,519 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-09-01 05:22:25,519 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-09-01 05:22:25,523 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-09-01 05:22:25,523 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-09-01 05:22:25,524 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 05:22:25,524 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:22:25,559 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:22:25,560 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:22:25,560 INFO L158 Benchmark]: Toolchain (without parser) took 11979.21ms. Allocated memory was 79.7MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 55.6MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 379.1MB. Max. memory is 16.1GB. [2023-09-01 05:22:25,561 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 65.0MB. Free memory was 42.9MB in the beginning and 42.9MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:22:25,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.51ms. Allocated memory is still 79.7MB. Free memory was 55.4MB in the beginning and 50.3MB in the end (delta: 5.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-09-01 05:22:25,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.89ms. Allocated memory is still 79.7MB. Free memory was 50.3MB in the beginning and 47.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:22:25,562 INFO L158 Benchmark]: Boogie Preprocessor took 57.26ms. Allocated memory is still 79.7MB. Free memory was 47.5MB in the beginning and 45.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:22:25,562 INFO L158 Benchmark]: RCFGBuilder took 681.31ms. Allocated memory is still 79.7MB. Free memory was 45.5MB in the beginning and 31.2MB in the end (delta: 14.3MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2023-09-01 05:22:25,562 INFO L158 Benchmark]: TraceAbstraction took 10653.62ms. Allocated memory was 79.7MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 30.8MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 498.7MB. Max. memory is 16.1GB. [2023-09-01 05:22:25,562 INFO L158 Benchmark]: Witness Printer took 49.46ms. Allocated memory is still 1.7GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:22:25,564 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 65.0MB. Free memory was 42.9MB in the beginning and 42.9MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 460.51ms. Allocated memory is still 79.7MB. Free memory was 55.4MB in the beginning and 50.3MB in the end (delta: 5.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.89ms. Allocated memory is still 79.7MB. Free memory was 50.3MB in the beginning and 47.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.26ms. Allocated memory is still 79.7MB. Free memory was 47.5MB in the beginning and 45.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 681.31ms. Allocated memory is still 79.7MB. Free memory was 45.5MB in the beginning and 31.2MB in the end (delta: 14.3MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * TraceAbstraction took 10653.62ms. Allocated memory was 79.7MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 30.8MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 498.7MB. Max. memory is 16.1GB. * Witness Printer took 49.46ms. Allocated memory is still 1.7GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 141 PlacesBefore, 48 PlacesAfterwards, 130 TransitionsBefore, 35 TransitionsAfterwards, 3888 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 105 TotalNumberOfCompositions, 14371 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4649, independent: 4298, independent conditional: 0, independent unconditional: 4298, dependent: 351, dependent conditional: 0, dependent unconditional: 351, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2037, independent: 1967, independent conditional: 0, independent unconditional: 1967, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4649, independent: 2331, independent conditional: 0, independent unconditional: 2331, dependent: 281, dependent conditional: 0, dependent unconditional: 281, unknown: 2037, unknown conditional: 0, unknown unconditional: 2037] , Statistics on independence cache: Total cache size (in pairs): 229, Positive cache size: 202, Positive conditional cache size: 0, Positive unconditional cache size: 202, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 844]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 844]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 177 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 282 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 250 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 445 IncrementalHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 18 mSDtfsCounter, 445 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 201 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 05:22:25,596 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