./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix021.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix021.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 576d0750cd121d18ae295ddde1dd1649436f79f5ff3834655e4b6c15fd1260db --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 05:17:00,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:17:00,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:17:00,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:17:00,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:17:00,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:17:00,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:17:00,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:17:00,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:17:00,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:17:00,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:17:00,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:17:00,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:17:00,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:17:00,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:17:00,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:17:00,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:17:00,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:17:00,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:17:00,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:17:00,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:17:00,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:17:00,327 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:17:00,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:17:00,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:17:00,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:17:00,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:17:00,336 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:17:00,336 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:17:00,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:17:00,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:17:00,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:17:00,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:17:00,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:17:00,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:17:00,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:17:00,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:17:00,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:17:00,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:17:00,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:17:00,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:17:00,348 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:17:00,376 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:17:00,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:17:00,377 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:17:00,377 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:17:00,378 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:17:00,378 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:17:00,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:17:00,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:17:00,379 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:17:00,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:17:00,380 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:17:00,380 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:17:00,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:17:00,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:17:00,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:17:00,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:17:00,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:17:00,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:17:00,381 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:17:00,381 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:17:00,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:17:00,381 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:17:00,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:17:00,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:17:00,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:17:00,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:17:00,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:17:00,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:17:00,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:17:00,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:17:00,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:17:00,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:17:00,383 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:17:00,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:17:00,384 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:17:00,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:17:00,384 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:17:00,384 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 576d0750cd121d18ae295ddde1dd1649436f79f5ff3834655e4b6c15fd1260db Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:17:00,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:17:00,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:17:00,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:17:00,688 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:17:00,688 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:17:00,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix021.opt.i [2023-09-01 05:17:01,885 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:17:02,137 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:17:02,138 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix021.opt.i [2023-09-01 05:17:02,148 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e5c61ee/7028ccd4de574ad89c2531870946d1b8/FLAG242f0cc8e [2023-09-01 05:17:02,427 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e5c61ee/7028ccd4de574ad89c2531870946d1b8 [2023-09-01 05:17:02,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:17:02,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:17:02,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:17:02,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:17:02,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:17:02,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:17:02" (1/1) ... [2023-09-01 05:17:02,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59681fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:02, skipping insertion in model container [2023-09-01 05:17:02,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:17:02" (1/1) ... [2023-09-01 05:17:02,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:17:02,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:17:02,573 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/mix021.opt.i[944,957] [2023-09-01 05:17:02,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:17:02,721 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:17:02,732 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/mix021.opt.i[944,957] [2023-09-01 05:17:02,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:17:02,823 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:17:02,823 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:17:02,828 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:17:02,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:02 WrapperNode [2023-09-01 05:17:02,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:17:02,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:17:02,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:17:02,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:17:02,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:02" (1/1) ... [2023-09-01 05:17:02,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:02" (1/1) ... [2023-09-01 05:17:02,893 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 166 [2023-09-01 05:17:02,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:17:02,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:17:02,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:17:02,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:17:02,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:02" (1/1) ... [2023-09-01 05:17:02,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:02" (1/1) ... [2023-09-01 05:17:02,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:02" (1/1) ... [2023-09-01 05:17:02,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:02" (1/1) ... [2023-09-01 05:17:02,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:02" (1/1) ... [2023-09-01 05:17:02,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:02" (1/1) ... [2023-09-01 05:17:02,933 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:02" (1/1) ... [2023-09-01 05:17:02,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:02" (1/1) ... [2023-09-01 05:17:02,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:17:02,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:17:02,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:17:02,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:17:02,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:02" (1/1) ... [2023-09-01 05:17:02,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:17:02,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:17:03,010 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 05:17:03,029 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 05:17:03,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:17:03,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:17:03,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:17:03,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:17:03,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:17:03,041 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:17:03,041 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:17:03,041 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:17:03,041 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:17:03,041 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-09-01 05:17:03,041 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-09-01 05:17:03,042 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-09-01 05:17:03,042 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-09-01 05:17:03,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:17:03,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:17:03,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:17:03,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:17:03,043 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 05:17:03,173 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:17:03,186 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:17:03,450 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:17:03,593 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:17:03,593 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:17:03,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:17:03 BoogieIcfgContainer [2023-09-01 05:17:03,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:17:03,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:17:03,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:17:03,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:17:03,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:17:02" (1/3) ... [2023-09-01 05:17:03,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16cf0107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:17:03, skipping insertion in model container [2023-09-01 05:17:03,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:17:02" (2/3) ... [2023-09-01 05:17:03,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16cf0107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:17:03, skipping insertion in model container [2023-09-01 05:17:03,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:17:03" (3/3) ... [2023-09-01 05:17:03,603 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021.opt.i [2023-09-01 05:17:03,613 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:17:03,620 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:17:03,620 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-09-01 05:17:03,620 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:17:03,658 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:17:03,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 133 transitions, 286 flow [2023-09-01 05:17:03,734 INFO L130 PetriNetUnfolder]: 2/129 cut-off events. [2023-09-01 05:17:03,735 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:17:03,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 129 events. 2/129 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2023-09-01 05:17:03,739 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 133 transitions, 286 flow [2023-09-01 05:17:03,742 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 129 transitions, 270 flow [2023-09-01 05:17:03,745 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:17:03,751 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 129 transitions, 270 flow [2023-09-01 05:17:03,753 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 129 transitions, 270 flow [2023-09-01 05:17:03,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 129 transitions, 270 flow [2023-09-01 05:17:03,787 INFO L130 PetriNetUnfolder]: 2/129 cut-off events. [2023-09-01 05:17:03,787 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:17:03,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 129 events. 2/129 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2023-09-01 05:17:03,790 INFO L119 LiptonReduction]: Number of co-enabled transitions 3576 [2023-09-01 05:17:06,714 INFO L134 LiptonReduction]: Checked pairs total: 10768 [2023-09-01 05:17:06,715 INFO L136 LiptonReduction]: Total number of compositions: 103 [2023-09-01 05:17:06,741 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:17:06,747 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;@6c5b2648, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:17:06,747 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-09-01 05:17:06,750 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-09-01 05:17:06,750 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:17:06,751 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:17:06,751 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:17:06,751 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 05:17:06,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:17:06,755 INFO L85 PathProgramCache]: Analyzing trace with hash 555041682, now seen corresponding path program 1 times [2023-09-01 05:17:06,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:17:06,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635526140] [2023-09-01 05:17:06,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:17:06,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:17:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:17:06,944 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 05:17:06,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:17:06,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635526140] [2023-09-01 05:17:06,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635526140] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:17:06,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:17:06,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:17:06,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082977748] [2023-09-01 05:17:06,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:17:06,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:17:06,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:17:06,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:17:06,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:17:06,983 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 236 [2023-09-01 05:17:06,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 34 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 05:17:06,985 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:17:06,985 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 236 [2023-09-01 05:17:06,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:17:07,824 INFO L130 PetriNetUnfolder]: 6649/9359 cut-off events. [2023-09-01 05:17:07,824 INFO L131 PetriNetUnfolder]: For 90/90 co-relation queries the response was YES. [2023-09-01 05:17:07,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18881 conditions, 9359 events. 6649/9359 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 52864 event pairs, 1861 based on Foata normal form. 0/6588 useless extension candidates. Maximal degree in co-relation 18869. Up to 8623 conditions per place. [2023-09-01 05:17:07,864 INFO L137 encePairwiseOnDemand]: 222/236 looper letters, 45 selfloop transitions, 5 changer transitions 0/53 dead transitions. [2023-09-01 05:17:07,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 53 transitions, 227 flow [2023-09-01 05:17:07,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:17:07,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:17:07,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2023-09-01 05:17:07,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5423728813559322 [2023-09-01 05:17:07,874 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 384 transitions. [2023-09-01 05:17:07,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 384 transitions. [2023-09-01 05:17:07,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:17:07,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 384 transitions. [2023-09-01 05:17:07,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 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 05:17:07,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 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 05:17:07,899 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 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 05:17:07,900 INFO L175 Difference]: Start difference. First operand has 46 places, 34 transitions, 80 flow. Second operand 3 states and 384 transitions. [2023-09-01 05:17:07,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 53 transitions, 227 flow [2023-09-01 05:17:07,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 53 transitions, 220 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 05:17:07,904 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 121 flow [2023-09-01 05:17:07,905 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2023-09-01 05:17:07,908 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2023-09-01 05:17:07,908 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 121 flow [2023-09-01 05:17:07,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 05:17:07,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:17:07,909 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:17:07,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:17:07,909 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:17:07,909 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:17:07,910 INFO L85 PathProgramCache]: Analyzing trace with hash 119548738, now seen corresponding path program 1 times [2023-09-01 05:17:07,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:17:07,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757999276] [2023-09-01 05:17:07,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:17:07,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:17:07,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:17:07,972 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 05:17:07,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:17:07,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757999276] [2023-09-01 05:17:07,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757999276] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:17:07,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:17:07,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:17:07,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249428766] [2023-09-01 05:17:07,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:17:07,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:17:07,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:17:07,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:17:07,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:17:07,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 236 [2023-09-01 05:17:07,981 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 121 flow. Second operand has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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 05:17:07,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:17:07,982 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 236 [2023-09-01 05:17:07,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:17:08,524 INFO L130 PetriNetUnfolder]: 4313/6339 cut-off events. [2023-09-01 05:17:08,524 INFO L131 PetriNetUnfolder]: For 298/298 co-relation queries the response was YES. [2023-09-01 05:17:08,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15750 conditions, 6339 events. 4313/6339 cut-off events. For 298/298 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 35190 event pairs, 709 based on Foata normal form. 0/5068 useless extension candidates. Maximal degree in co-relation 15739. Up to 3430 conditions per place. [2023-09-01 05:17:08,550 INFO L137 encePairwiseOnDemand]: 223/236 looper letters, 59 selfloop transitions, 13 changer transitions 0/75 dead transitions. [2023-09-01 05:17:08,550 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 75 transitions, 367 flow [2023-09-01 05:17:08,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:17:08,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:17:08,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2023-09-01 05:17:08,552 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.538135593220339 [2023-09-01 05:17:08,552 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 508 transitions. [2023-09-01 05:17:08,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 508 transitions. [2023-09-01 05:17:08,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:17:08,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 508 transitions. [2023-09-01 05:17:08,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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 05:17:08,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 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 05:17:08,556 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 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 05:17:08,556 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 121 flow. Second operand 4 states and 508 transitions. [2023-09-01 05:17:08,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 75 transitions, 367 flow [2023-09-01 05:17:08,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 75 transitions, 362 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:17:08,558 INFO L231 Difference]: Finished difference. Result has 49 places, 45 transitions, 219 flow [2023-09-01 05:17:08,559 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=49, PETRI_TRANSITIONS=45} [2023-09-01 05:17:08,559 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 3 predicate places. [2023-09-01 05:17:08,559 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 45 transitions, 219 flow [2023-09-01 05:17:08,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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 05:17:08,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:17:08,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:17:08,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:17:08,560 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:17:08,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:17:08,561 INFO L85 PathProgramCache]: Analyzing trace with hash 119548737, now seen corresponding path program 1 times [2023-09-01 05:17:08,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:17:08,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039678852] [2023-09-01 05:17:08,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:17:08,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:17:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:17:08,601 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 05:17:08,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:17:08,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039678852] [2023-09-01 05:17:08,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039678852] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:17:08,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:17:08,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:17:08,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303113692] [2023-09-01 05:17:08,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:17:08,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:17:08,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:17:08,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:17:08,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:17:08,608 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 236 [2023-09-01 05:17:08,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 45 transitions, 219 flow. Second operand has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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 05:17:08,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:17:08,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 236 [2023-09-01 05:17:08,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:17:08,914 INFO L130 PetriNetUnfolder]: 2366/3402 cut-off events. [2023-09-01 05:17:08,914 INFO L131 PetriNetUnfolder]: For 2764/2764 co-relation queries the response was YES. [2023-09-01 05:17:08,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9527 conditions, 3402 events. 2366/3402 cut-off events. For 2764/2764 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 15814 event pairs, 511 based on Foata normal form. 586/3771 useless extension candidates. Maximal degree in co-relation 9513. Up to 2665 conditions per place. [2023-09-01 05:17:08,928 INFO L137 encePairwiseOnDemand]: 227/236 looper letters, 45 selfloop transitions, 5 changer transitions 0/53 dead transitions. [2023-09-01 05:17:08,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 53 transitions, 301 flow [2023-09-01 05:17:08,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:17:08,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:17:08,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 482 transitions. [2023-09-01 05:17:08,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.510593220338983 [2023-09-01 05:17:08,930 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 482 transitions. [2023-09-01 05:17:08,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 482 transitions. [2023-09-01 05:17:08,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:17:08,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 482 transitions. [2023-09-01 05:17:08,931 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 05:17:08,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 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 05:17:08,933 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 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 05:17:08,933 INFO L175 Difference]: Start difference. First operand has 49 places, 45 transitions, 219 flow. Second operand 4 states and 482 transitions. [2023-09-01 05:17:08,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 53 transitions, 301 flow [2023-09-01 05:17:08,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 53 transitions, 278 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-09-01 05:17:08,961 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 150 flow [2023-09-01 05:17:08,961 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=150, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2023-09-01 05:17:08,962 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2023-09-01 05:17:08,962 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 150 flow [2023-09-01 05:17:08,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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 05:17:08,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:17:08,963 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:17:08,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:17:08,963 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 05:17:08,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:17:08,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1355859430, now seen corresponding path program 1 times [2023-09-01 05:17:08,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:17:08,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850004145] [2023-09-01 05:17:08,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:17:08,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:17:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:17:09,035 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 05:17:09,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:17:09,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850004145] [2023-09-01 05:17:09,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850004145] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:17:09,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:17:09,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:17:09,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456441700] [2023-09-01 05:17:09,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:17:09,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:17:09,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:17:09,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:17:09,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:17:09,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 236 [2023-09-01 05:17:09,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 150 flow. Second operand has 5 states, 5 states have (on average 110.6) internal successors, (553), 5 states have internal predecessors, (553), 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 05:17:09,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:17:09,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 236 [2023-09-01 05:17:09,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:17:09,362 INFO L130 PetriNetUnfolder]: 2087/2961 cut-off events. [2023-09-01 05:17:09,363 INFO L131 PetriNetUnfolder]: For 2070/2070 co-relation queries the response was YES. [2023-09-01 05:17:09,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7748 conditions, 2961 events. 2087/2961 cut-off events. For 2070/2070 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 13233 event pairs, 467 based on Foata normal form. 0/2930 useless extension candidates. Maximal degree in co-relation 7735. Up to 1216 conditions per place. [2023-09-01 05:17:09,383 INFO L137 encePairwiseOnDemand]: 227/236 looper letters, 63 selfloop transitions, 13 changer transitions 4/83 dead transitions. [2023-09-01 05:17:09,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 83 transitions, 430 flow [2023-09-01 05:17:09,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:17:09,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:17:09,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 624 transitions. [2023-09-01 05:17:09,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5288135593220339 [2023-09-01 05:17:09,389 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 624 transitions. [2023-09-01 05:17:09,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 624 transitions. [2023-09-01 05:17:09,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:17:09,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 624 transitions. [2023-09-01 05:17:09,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 124.8) internal successors, (624), 5 states have internal predecessors, (624), 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 05:17:09,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 236.0) internal successors, (1416), 6 states have internal predecessors, (1416), 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 05:17:09,395 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 236.0) internal successors, (1416), 6 states have internal predecessors, (1416), 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 05:17:09,395 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 150 flow. Second operand 5 states and 624 transitions. [2023-09-01 05:17:09,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 83 transitions, 430 flow [2023-09-01 05:17:09,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 83 transitions, 424 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:17:09,399 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 186 flow [2023-09-01 05:17:09,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=186, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2023-09-01 05:17:09,400 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places. [2023-09-01 05:17:09,400 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 186 flow [2023-09-01 05:17:09,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.6) internal successors, (553), 5 states have internal predecessors, (553), 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 05:17:09,401 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:17:09,401 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:17:09,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:17:09,401 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 05:17:09,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:17:09,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1922658440, now seen corresponding path program 1 times [2023-09-01 05:17:09,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:17:09,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358877388] [2023-09-01 05:17:09,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:17:09,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:17:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:17:09,620 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 05:17:09,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:17:09,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358877388] [2023-09-01 05:17:09,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358877388] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:17:09,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:17:09,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:17:09,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121998635] [2023-09-01 05:17:09,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:17:09,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:17:09,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:17:09,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:17:09,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:17:09,629 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 236 [2023-09-01 05:17:09,629 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 111.16666666666667) internal successors, (667), 6 states have internal predecessors, (667), 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 05:17:09,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:17:09,630 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 236 [2023-09-01 05:17:09,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:17:09,963 INFO L130 PetriNetUnfolder]: 2060/2914 cut-off events. [2023-09-01 05:17:09,963 INFO L131 PetriNetUnfolder]: For 2454/2454 co-relation queries the response was YES. [2023-09-01 05:17:09,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8597 conditions, 2914 events. 2060/2914 cut-off events. For 2454/2454 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 13001 event pairs, 467 based on Foata normal form. 16/2915 useless extension candidates. Maximal degree in co-relation 8583. Up to 1216 conditions per place. [2023-09-01 05:17:09,970 INFO L137 encePairwiseOnDemand]: 227/236 looper letters, 0 selfloop transitions, 0 changer transitions 75/75 dead transitions. [2023-09-01 05:17:09,970 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 75 transitions, 394 flow [2023-09-01 05:17:09,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:17:09,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:17:09,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 724 transitions. [2023-09-01 05:17:09,972 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5112994350282486 [2023-09-01 05:17:09,972 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 724 transitions. [2023-09-01 05:17:09,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 724 transitions. [2023-09-01 05:17:09,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:17:09,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 724 transitions. [2023-09-01 05:17:09,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 120.66666666666667) internal successors, (724), 6 states have internal predecessors, (724), 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 05:17:09,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 236.0) internal successors, (1652), 7 states have internal predecessors, (1652), 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 05:17:09,977 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 236.0) internal successors, (1652), 7 states have internal predecessors, (1652), 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 05:17:09,977 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 186 flow. Second operand 6 states and 724 transitions. [2023-09-01 05:17:09,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 75 transitions, 394 flow [2023-09-01 05:17:10,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 75 transitions, 339 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-09-01 05:17:10,006 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2023-09-01 05:17:10,007 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2023-09-01 05:17:10,009 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2023-09-01 05:17:10,009 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2023-09-01 05:17:10,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 111.16666666666667) internal successors, (667), 6 states have internal predecessors, (667), 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 05:17:10,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-09-01 05:17:10,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-09-01 05:17:10,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-09-01 05:17:10,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-09-01 05:17:10,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-09-01 05:17:10,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-09-01 05:17:10,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-09-01 05:17:10,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-09-01 05:17:10,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-09-01 05:17:10,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-09-01 05:17:10,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-09-01 05:17:10,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-09-01 05:17:10,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-09-01 05:17:10,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-09-01 05:17:10,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-09-01 05:17:10,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-09-01 05:17:10,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-09-01 05:17:10,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-09-01 05:17:10,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-09-01 05:17:10,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-09-01 05:17:10,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 05:17:10,020 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-09-01 05:17:10,024 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:17:10,024 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:17:10,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:17:10 BasicIcfg [2023-09-01 05:17:10,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:17:10,027 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:17:10,027 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:17:10,028 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:17:10,028 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:17:03" (3/4) ... [2023-09-01 05:17:10,030 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:17:10,033 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:17:10,033 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:17:10,033 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-09-01 05:17:10,033 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-09-01 05:17:10,038 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-09-01 05:17:10,038 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-09-01 05:17:10,038 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 05:17:10,038 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:17:10,077 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:17:10,077 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:17:10,078 INFO L158 Benchmark]: Toolchain (without parser) took 7647.34ms. Allocated memory was 65.0MB in the beginning and 897.6MB in the end (delta: 832.6MB). Free memory was 40.5MB in the beginning and 674.5MB in the end (delta: -634.0MB). Peak memory consumption was 200.9MB. Max. memory is 16.1GB. [2023-09-01 05:17:10,078 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory was 29.5MB in the beginning and 29.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:17:10,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.49ms. Allocated memory is still 65.0MB. Free memory was 40.3MB in the beginning and 31.6MB in the end (delta: 8.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-09-01 05:17:10,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.89ms. Allocated memory is still 65.0MB. Free memory was 31.6MB in the beginning and 28.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:17:10,079 INFO L158 Benchmark]: Boogie Preprocessor took 52.04ms. Allocated memory is still 65.0MB. Free memory was 28.8MB in the beginning and 42.5MB in the end (delta: -13.7MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2023-09-01 05:17:10,079 INFO L158 Benchmark]: RCFGBuilder took 646.01ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 42.3MB in the beginning and 53.6MB in the end (delta: -11.3MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2023-09-01 05:17:10,079 INFO L158 Benchmark]: TraceAbstraction took 6429.47ms. Allocated memory was 79.7MB in the beginning and 897.6MB in the end (delta: 817.9MB). Free memory was 52.9MB in the beginning and 678.7MB in the end (delta: -625.8MB). Peak memory consumption was 308.0MB. Max. memory is 16.1GB. [2023-09-01 05:17:10,080 INFO L158 Benchmark]: Witness Printer took 49.59ms. Allocated memory is still 897.6MB. Free memory was 678.7MB in the beginning and 674.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:17:10,081 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory was 29.5MB in the beginning and 29.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.49ms. Allocated memory is still 65.0MB. Free memory was 40.3MB in the beginning and 31.6MB in the end (delta: 8.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.89ms. Allocated memory is still 65.0MB. Free memory was 31.6MB in the beginning and 28.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.04ms. Allocated memory is still 65.0MB. Free memory was 28.8MB in the beginning and 42.5MB in the end (delta: -13.7MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * RCFGBuilder took 646.01ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 42.3MB in the beginning and 53.6MB in the end (delta: -11.3MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6429.47ms. Allocated memory was 79.7MB in the beginning and 897.6MB in the end (delta: 817.9MB). Free memory was 52.9MB in the beginning and 678.7MB in the end (delta: -625.8MB). Peak memory consumption was 308.0MB. Max. memory is 16.1GB. * Witness Printer took 49.59ms. Allocated memory is still 897.6MB. Free memory was 678.7MB in the beginning and 674.5MB 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: 3.0s, 140 PlacesBefore, 46 PlacesAfterwards, 129 TransitionsBefore, 34 TransitionsAfterwards, 3576 CoEnabledTransitionPairs, 6 FixpointIterations, 42 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 103 TotalNumberOfCompositions, 10768 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4035, independent: 3762, independent conditional: 0, independent unconditional: 3762, dependent: 273, dependent conditional: 0, dependent unconditional: 273, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1924, independent: 1859, independent conditional: 0, independent unconditional: 1859, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4035, independent: 1903, independent conditional: 0, independent unconditional: 1903, dependent: 208, dependent conditional: 0, dependent unconditional: 208, unknown: 1924, unknown conditional: 0, unknown unconditional: 1924] , Statistics on independence cache: Total cache size (in pairs): 211, Positive cache size: 185, Positive conditional cache size: 0, Positive unconditional cache size: 185, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 758]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 758]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 847]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 847]: 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, 174 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: 6.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 249 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 220 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 418 IncrementalHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 19 mSDtfsCounter, 418 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=219occurred in iteration=2, 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, 0.4s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 05:17:10,099 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