./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.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 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 09:46:37,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 09:46:37,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 09:46:37,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 09:46:37,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 09:46:37,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 09:46:37,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 09:46:37,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 09:46:37,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 09:46:37,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 09:46:37,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 09:46:37,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 09:46:37,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 09:46:37,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 09:46:37,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 09:46:37,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 09:46:37,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 09:46:37,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 09:46:37,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 09:46:37,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 09:46:37,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 09:46:37,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 09:46:37,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 09:46:37,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 09:46:37,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 09:46:37,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 09:46:37,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 09:46:37,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 09:46:37,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 09:46:37,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 09:46:37,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 09:46:37,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 09:46:37,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 09:46:37,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 09:46:37,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 09:46:37,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 09:46:37,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 09:46:37,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 09:46:37,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 09:46:37,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 09:46:37,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 09:46:37,646 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 09:46:37,670 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 09:46:37,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 09:46:37,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 09:46:37,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 09:46:37,672 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 09:46:37,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 09:46:37,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 09:46:37,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 09:46:37,673 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 09:46:37,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 09:46:37,674 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 09:46:37,674 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 09:46:37,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 09:46:37,675 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 09:46:37,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 09:46:37,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 09:46:37,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 09:46:37,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 09:46:37,675 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 09:46:37,676 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 09:46:37,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 09:46:37,676 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 09:46:37,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 09:46:37,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 09:46:37,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 09:46:37,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 09:46:37,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:46:37,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 09:46:37,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 09:46:37,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 09:46:37,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 09:46:37,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 09:46:37,678 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 09:46:37,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 09:46:37,678 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 09:46:37,678 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 09:46:37,678 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 09:46:37,678 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 09:46:37,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 09:46:37,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 09:46:37,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 09:46:37,918 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 09:46:37,918 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 09:46:37,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2023-08-30 09:46:38,876 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 09:46:39,050 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 09:46:39,051 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2023-08-30 09:46:39,061 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb4027225/bf5fd05a42e14a17abceb2969093ae00/FLAG88f48f5d2 [2023-08-30 09:46:39,072 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb4027225/bf5fd05a42e14a17abceb2969093ae00 [2023-08-30 09:46:39,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 09:46:39,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 09:46:39,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 09:46:39,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 09:46:39,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 09:46:39,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:46:39" (1/1) ... [2023-08-30 09:46:39,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4325ab97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:39, skipping insertion in model container [2023-08-30 09:46:39,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:46:39" (1/1) ... [2023-08-30 09:46:39,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 09:46:39,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 09:46:39,215 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i[1096,1109] [2023-08-30 09:46:39,298 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:46:39,307 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 09:46:39,314 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i[1096,1109] [2023-08-30 09:46:39,332 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:46:39,362 INFO L208 MainTranslator]: Completed translation [2023-08-30 09:46:39,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:39 WrapperNode [2023-08-30 09:46:39,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 09:46:39,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 09:46:39,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 09:46:39,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 09:46:39,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:39" (1/1) ... [2023-08-30 09:46:39,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:39" (1/1) ... [2023-08-30 09:46:39,414 INFO L138 Inliner]: procedures = 162, calls = 46, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 90 [2023-08-30 09:46:39,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 09:46:39,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 09:46:39,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 09:46:39,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 09:46:39,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:39" (1/1) ... [2023-08-30 09:46:39,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:39" (1/1) ... [2023-08-30 09:46:39,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:39" (1/1) ... [2023-08-30 09:46:39,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:39" (1/1) ... [2023-08-30 09:46:39,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:39" (1/1) ... [2023-08-30 09:46:39,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:39" (1/1) ... [2023-08-30 09:46:39,449 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:39" (1/1) ... [2023-08-30 09:46:39,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:39" (1/1) ... [2023-08-30 09:46:39,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 09:46:39,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 09:46:39,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 09:46:39,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 09:46:39,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:39" (1/1) ... [2023-08-30 09:46:39,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:46:39,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:46:39,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 09:46:39,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 09:46:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 09:46:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 09:46:39,532 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 09:46:39,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 09:46:39,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 09:46:39,532 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 09:46:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 09:46:39,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 09:46:39,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 09:46:39,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 09:46:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 09:46:39,534 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 09:46:39,645 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 09:46:39,646 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 09:46:39,878 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 09:46:39,884 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 09:46:39,884 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 09:46:39,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:46:39 BoogieIcfgContainer [2023-08-30 09:46:39,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 09:46:39,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 09:46:39,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 09:46:39,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 09:46:39,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 09:46:39" (1/3) ... [2023-08-30 09:46:39,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ea3958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:46:39, skipping insertion in model container [2023-08-30 09:46:39,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:46:39" (2/3) ... [2023-08-30 09:46:39,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ea3958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:46:39, skipping insertion in model container [2023-08-30 09:46:39,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:46:39" (3/3) ... [2023-08-30 09:46:39,899 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2023-08-30 09:46:39,912 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 09:46:39,918 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 09:46:39,919 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 09:46:39,919 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 09:46:39,999 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 09:46:40,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 143 transitions, 294 flow [2023-08-30 09:46:40,124 INFO L130 PetriNetUnfolder]: 4/142 cut-off events. [2023-08-30 09:46:40,126 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 09:46:40,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 142 events. 4/142 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 138 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2023-08-30 09:46:40,132 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 143 transitions, 294 flow [2023-08-30 09:46:40,145 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 135 transitions, 273 flow [2023-08-30 09:46:40,148 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 09:46:40,166 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 135 transitions, 273 flow [2023-08-30 09:46:40,173 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 135 transitions, 273 flow [2023-08-30 09:46:40,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 135 transitions, 273 flow [2023-08-30 09:46:40,193 INFO L130 PetriNetUnfolder]: 4/135 cut-off events. [2023-08-30 09:46:40,193 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:46:40,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 135 events. 4/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 138 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2023-08-30 09:46:40,196 INFO L119 LiptonReduction]: Number of co-enabled transitions 4802 [2023-08-30 09:46:43,411 INFO L134 LiptonReduction]: Checked pairs total: 17683 [2023-08-30 09:46:43,411 INFO L136 LiptonReduction]: Total number of compositions: 113 [2023-08-30 09:46:43,420 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 09:46:43,451 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;@73cca2f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:46:43,451 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2023-08-30 09:46:43,454 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-08-30 09:46:43,454 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:46:43,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:46:43,455 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 09:46:43,455 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-30 09:46:43,458 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:46:43,458 INFO L85 PathProgramCache]: Analyzing trace with hash 15279463, now seen corresponding path program 1 times [2023-08-30 09:46:43,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:46:43,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661551034] [2023-08-30 09:46:43,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:46:43,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:46:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:46:43,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:46:43,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:46:43,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661551034] [2023-08-30 09:46:43,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661551034] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:46:43,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:46:43,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:46:43,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669401658] [2023-08-30 09:46:43,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:46:43,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:46:43,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:46:43,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:46:43,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:46:43,651 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 256 [2023-08-30 09:46:43,653 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 50 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:43,653 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:46:43,653 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 256 [2023-08-30 09:46:43,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:46:43,778 INFO L130 PetriNetUnfolder]: 336/767 cut-off events. [2023-08-30 09:46:43,779 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:46:43,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1483 conditions, 767 events. 336/767 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3832 event pairs, 64 based on Foata normal form. 54/653 useless extension candidates. Maximal degree in co-relation 1474. Up to 628 conditions per place. [2023-08-30 09:46:43,783 INFO L137 encePairwiseOnDemand]: 246/256 looper letters, 50 selfloop transitions, 2 changer transitions 4/59 dead transitions. [2023-08-30 09:46:43,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 59 transitions, 231 flow [2023-08-30 09:46:43,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:46:43,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:46:43,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 455 transitions. [2023-08-30 09:46:43,793 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5924479166666666 [2023-08-30 09:46:43,793 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 455 transitions. [2023-08-30 09:46:43,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 455 transitions. [2023-08-30 09:46:43,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:46:43,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 455 transitions. [2023-08-30 09:46:43,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:43,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:43,802 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:43,803 INFO L175 Difference]: Start difference. First operand has 50 places, 50 transitions, 103 flow. Second operand 3 states and 455 transitions. [2023-08-30 09:46:43,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 59 transitions, 231 flow [2023-08-30 09:46:43,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 59 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:46:43,806 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 90 flow [2023-08-30 09:46:43,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2023-08-30 09:46:43,810 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2023-08-30 09:46:43,810 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 90 flow [2023-08-30 09:46:43,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:43,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:46:43,810 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:46:43,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 09:46:43,811 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-30 09:46:43,811 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:46:43,811 INFO L85 PathProgramCache]: Analyzing trace with hash -76301260, now seen corresponding path program 1 times [2023-08-30 09:46:43,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:46:43,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138107924] [2023-08-30 09:46:43,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:46:43,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:46:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:46:43,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:46:43,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:46:43,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138107924] [2023-08-30 09:46:43,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138107924] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:46:43,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:46:43,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:46:43,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592111536] [2023-08-30 09:46:43,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:46:43,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:46:43,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:46:43,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:46:43,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:46:43,925 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 256 [2023-08-30 09:46:43,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 127.2) internal successors, (636), 5 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:43,927 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:46:43,927 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 256 [2023-08-30 09:46:43,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:46:44,063 INFO L130 PetriNetUnfolder]: 264/601 cut-off events. [2023-08-30 09:46:44,064 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2023-08-30 09:46:44,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1231 conditions, 601 events. 264/601 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2877 event pairs, 20 based on Foata normal form. 0/509 useless extension candidates. Maximal degree in co-relation 1220. Up to 371 conditions per place. [2023-08-30 09:46:44,068 INFO L137 encePairwiseOnDemand]: 251/256 looper letters, 81 selfloop transitions, 4 changer transitions 0/88 dead transitions. [2023-08-30 09:46:44,068 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 88 transitions, 362 flow [2023-08-30 09:46:44,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 09:46:44,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 09:46:44,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 716 transitions. [2023-08-30 09:46:44,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.559375 [2023-08-30 09:46:44,072 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 716 transitions. [2023-08-30 09:46:44,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 716 transitions. [2023-08-30 09:46:44,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:46:44,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 716 transitions. [2023-08-30 09:46:44,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 256.0) internal successors, (1536), 6 states have internal predecessors, (1536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,078 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 256.0) internal successors, (1536), 6 states have internal predecessors, (1536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,079 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 90 flow. Second operand 5 states and 716 transitions. [2023-08-30 09:46:44,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 88 transitions, 362 flow [2023-08-30 09:46:44,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 88 transitions, 358 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 09:46:44,086 INFO L231 Difference]: Finished difference. Result has 46 places, 38 transitions, 92 flow [2023-08-30 09:46:44,086 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=92, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2023-08-30 09:46:44,087 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -4 predicate places. [2023-08-30 09:46:44,087 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 92 flow [2023-08-30 09:46:44,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 127.2) internal successors, (636), 5 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:46:44,088 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:46:44,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 09:46:44,088 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-30 09:46:44,089 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:46:44,089 INFO L85 PathProgramCache]: Analyzing trace with hash -76301266, now seen corresponding path program 1 times [2023-08-30 09:46:44,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:46:44,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601219740] [2023-08-30 09:46:44,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:46:44,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:46:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:46:44,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:46:44,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:46:44,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601219740] [2023-08-30 09:46:44,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601219740] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:46:44,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:46:44,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:46:44,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368343408] [2023-08-30 09:46:44,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:46:44,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:46:44,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:46:44,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:46:44,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:46:44,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 256 [2023-08-30 09:46:44,201 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 127.2) internal successors, (636), 5 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,201 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:46:44,202 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 256 [2023-08-30 09:46:44,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:46:44,325 INFO L130 PetriNetUnfolder]: 246/564 cut-off events. [2023-08-30 09:46:44,325 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2023-08-30 09:46:44,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1191 conditions, 564 events. 246/564 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2609 event pairs, 18 based on Foata normal form. 0/492 useless extension candidates. Maximal degree in co-relation 1180. Up to 371 conditions per place. [2023-08-30 09:46:44,329 INFO L137 encePairwiseOnDemand]: 251/256 looper letters, 80 selfloop transitions, 4 changer transitions 0/87 dead transitions. [2023-08-30 09:46:44,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 87 transitions, 362 flow [2023-08-30 09:46:44,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 09:46:44,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 09:46:44,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 715 transitions. [2023-08-30 09:46:44,331 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.55859375 [2023-08-30 09:46:44,331 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 715 transitions. [2023-08-30 09:46:44,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 715 transitions. [2023-08-30 09:46:44,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:46:44,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 715 transitions. [2023-08-30 09:46:44,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 256.0) internal successors, (1536), 6 states have internal predecessors, (1536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,335 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 256.0) internal successors, (1536), 6 states have internal predecessors, (1536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,335 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 92 flow. Second operand 5 states and 715 transitions. [2023-08-30 09:46:44,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 87 transitions, 362 flow [2023-08-30 09:46:44,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 87 transitions, 354 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 09:46:44,338 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 90 flow [2023-08-30 09:46:44,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=90, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2023-08-30 09:46:44,339 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -5 predicate places. [2023-08-30 09:46:44,339 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 90 flow [2023-08-30 09:46:44,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 127.2) internal successors, (636), 5 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,340 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:46:44,340 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:46:44,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 09:46:44,340 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-30 09:46:44,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:46:44,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1832652223, now seen corresponding path program 1 times [2023-08-30 09:46:44,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:46:44,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981238982] [2023-08-30 09:46:44,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:46:44,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:46:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:46:44,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:46:44,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:46:44,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981238982] [2023-08-30 09:46:44,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981238982] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:46:44,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:46:44,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:46:44,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742429932] [2023-08-30 09:46:44,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:46:44,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:46:44,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:46:44,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:46:44,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:46:44,435 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 256 [2023-08-30 09:46:44,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:46:44,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 256 [2023-08-30 09:46:44,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:46:44,505 INFO L130 PetriNetUnfolder]: 184/416 cut-off events. [2023-08-30 09:46:44,506 INFO L131 PetriNetUnfolder]: For 41/41 co-relation queries the response was YES. [2023-08-30 09:46:44,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 891 conditions, 416 events. 184/416 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1708 event pairs, 116 based on Foata normal form. 0/388 useless extension candidates. Maximal degree in co-relation 880. Up to 252 conditions per place. [2023-08-30 09:46:44,510 INFO L137 encePairwiseOnDemand]: 251/256 looper letters, 46 selfloop transitions, 2 changer transitions 0/52 dead transitions. [2023-08-30 09:46:44,510 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 52 transitions, 220 flow [2023-08-30 09:46:44,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:46:44,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:46:44,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 441 transitions. [2023-08-30 09:46:44,511 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.57421875 [2023-08-30 09:46:44,512 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 441 transitions. [2023-08-30 09:46:44,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 441 transitions. [2023-08-30 09:46:44,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:46:44,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 441 transitions. [2023-08-30 09:46:44,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,517 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,517 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 90 flow. Second operand 3 states and 441 transitions. [2023-08-30 09:46:44,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 52 transitions, 220 flow [2023-08-30 09:46:44,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 52 transitions, 212 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 09:46:44,520 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 86 flow [2023-08-30 09:46:44,521 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=42, PETRI_TRANSITIONS=35} [2023-08-30 09:46:44,522 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -8 predicate places. [2023-08-30 09:46:44,522 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 86 flow [2023-08-30 09:46:44,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,523 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:46:44,523 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:46:44,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 09:46:44,523 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-30 09:46:44,524 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:46:44,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1081457094, now seen corresponding path program 1 times [2023-08-30 09:46:44,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:46:44,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639753593] [2023-08-30 09:46:44,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:46:44,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:46:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:46:44,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:46:44,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:46:44,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639753593] [2023-08-30 09:46:44,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639753593] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:46:44,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:46:44,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:46:44,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272223465] [2023-08-30 09:46:44,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:46:44,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:46:44,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:46:44,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:46:44,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:46:44,637 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 256 [2023-08-30 09:46:44,638 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,638 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:46:44,638 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 256 [2023-08-30 09:46:44,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:46:44,739 INFO L130 PetriNetUnfolder]: 166/378 cut-off events. [2023-08-30 09:46:44,739 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2023-08-30 09:46:44,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 819 conditions, 378 events. 166/378 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1541 event pairs, 96 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 807. Up to 217 conditions per place. [2023-08-30 09:46:44,740 INFO L137 encePairwiseOnDemand]: 251/256 looper letters, 78 selfloop transitions, 4 changer transitions 0/86 dead transitions. [2023-08-30 09:46:44,740 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 86 transitions, 366 flow [2023-08-30 09:46:44,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 09:46:44,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 09:46:44,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 839 transitions. [2023-08-30 09:46:44,742 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5462239583333334 [2023-08-30 09:46:44,742 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 839 transitions. [2023-08-30 09:46:44,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 839 transitions. [2023-08-30 09:46:44,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:46:44,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 839 transitions. [2023-08-30 09:46:44,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.83333333333334) internal successors, (839), 6 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 256.0) internal successors, (1792), 7 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,746 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 256.0) internal successors, (1792), 7 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,746 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 86 flow. Second operand 6 states and 839 transitions. [2023-08-30 09:46:44,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 86 transitions, 366 flow [2023-08-30 09:46:44,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 86 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 09:46:44,747 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 88 flow [2023-08-30 09:46:44,747 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=88, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2023-08-30 09:46:44,748 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -6 predicate places. [2023-08-30 09:46:44,748 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 88 flow [2023-08-30 09:46:44,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,748 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:46:44,748 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:46:44,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 09:46:44,748 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-30 09:46:44,749 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:46:44,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1081457101, now seen corresponding path program 1 times [2023-08-30 09:46:44,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:46:44,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372247023] [2023-08-30 09:46:44,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:46:44,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:46:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:46:44,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:46:44,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:46:44,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372247023] [2023-08-30 09:46:44,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372247023] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:46:44,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:46:44,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:46:44,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537959511] [2023-08-30 09:46:44,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:46:44,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:46:44,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:46:44,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:46:44,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:46:44,846 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 256 [2023-08-30 09:46:44,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:46:44,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 256 [2023-08-30 09:46:44,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:46:44,946 INFO L130 PetriNetUnfolder]: 148/341 cut-off events. [2023-08-30 09:46:44,946 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-08-30 09:46:44,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 779 conditions, 341 events. 148/341 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1376 event pairs, 96 based on Foata normal form. 19/355 useless extension candidates. Maximal degree in co-relation 767. Up to 217 conditions per place. [2023-08-30 09:46:44,946 INFO L137 encePairwiseOnDemand]: 251/256 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2023-08-30 09:46:44,946 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 85 transitions, 366 flow [2023-08-30 09:46:44,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 09:46:44,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 09:46:44,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 838 transitions. [2023-08-30 09:46:44,948 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5455729166666666 [2023-08-30 09:46:44,948 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 838 transitions. [2023-08-30 09:46:44,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 838 transitions. [2023-08-30 09:46:44,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:46:44,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 838 transitions. [2023-08-30 09:46:44,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.66666666666666) internal successors, (838), 6 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 256.0) internal successors, (1792), 7 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,951 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 256.0) internal successors, (1792), 7 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,951 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 88 flow. Second operand 6 states and 838 transitions. [2023-08-30 09:46:44,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 85 transitions, 366 flow [2023-08-30 09:46:44,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 85 transitions, 359 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 09:46:44,953 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2023-08-30 09:46:44,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=39, 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=44, PETRI_TRANSITIONS=0} [2023-08-30 09:46:44,953 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -6 predicate places. [2023-08-30 09:46:44,953 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2023-08-30 09:46:44,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:46:44,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2023-08-30 09:46:44,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2023-08-30 09:46:44,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2023-08-30 09:46:44,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2023-08-30 09:46:44,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2023-08-30 09:46:44,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2023-08-30 09:46:44,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2023-08-30 09:46:44,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2023-08-30 09:46:44,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2023-08-30 09:46:44,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2023-08-30 09:46:44,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2023-08-30 09:46:44,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2023-08-30 09:46:44,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2023-08-30 09:46:44,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2023-08-30 09:46:44,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2023-08-30 09:46:44,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2023-08-30 09:46:44,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2023-08-30 09:46:44,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 09:46:44,957 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-30 09:46:44,960 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 09:46:44,960 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 09:46:44,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 09:46:44 BasicIcfg [2023-08-30 09:46:44,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 09:46:44,962 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 09:46:44,963 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 09:46:44,963 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 09:46:44,963 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:46:39" (3/4) ... [2023-08-30 09:46:44,964 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 09:46:44,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 09:46:44,970 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-08-30 09:46:44,970 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 09:46:44,970 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 09:46:44,970 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 09:46:45,006 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 09:46:45,006 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 09:46:45,007 INFO L158 Benchmark]: Toolchain (without parser) took 5931.54ms. Allocated memory was 60.8MB in the beginning and 136.3MB in the end (delta: 75.5MB). Free memory was 27.1MB in the beginning and 78.5MB in the end (delta: -51.4MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2023-08-30 09:46:45,007 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 50.3MB. Free memory was 28.7MB in the beginning and 28.6MB in the end (delta: 54.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 09:46:45,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.23ms. Allocated memory is still 60.8MB. Free memory was 26.9MB in the beginning and 39.1MB in the end (delta: -12.2MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2023-08-30 09:46:45,007 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.12ms. Allocated memory is still 60.8MB. Free memory was 39.1MB in the beginning and 37.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:46:45,007 INFO L158 Benchmark]: Boogie Preprocessor took 41.80ms. Allocated memory is still 60.8MB. Free memory was 37.0MB in the beginning and 35.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 09:46:45,007 INFO L158 Benchmark]: RCFGBuilder took 428.71ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 35.5MB in the beginning and 51.8MB in the end (delta: -16.4MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2023-08-30 09:46:45,008 INFO L158 Benchmark]: TraceAbstraction took 5074.05ms. Allocated memory was 77.6MB in the beginning and 136.3MB in the end (delta: 58.7MB). Free memory was 51.3MB in the beginning and 81.6MB in the end (delta: -30.3MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2023-08-30 09:46:45,008 INFO L158 Benchmark]: Witness Printer took 43.80ms. Allocated memory is still 136.3MB. Free memory was 81.6MB in the beginning and 78.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:46:45,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 50.3MB. Free memory was 28.7MB in the beginning and 28.6MB in the end (delta: 54.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.23ms. Allocated memory is still 60.8MB. Free memory was 26.9MB in the beginning and 39.1MB in the end (delta: -12.2MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.12ms. Allocated memory is still 60.8MB. Free memory was 39.1MB in the beginning and 37.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.80ms. Allocated memory is still 60.8MB. Free memory was 37.0MB in the beginning and 35.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 428.71ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 35.5MB in the beginning and 51.8MB in the end (delta: -16.4MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5074.05ms. Allocated memory was 77.6MB in the beginning and 136.3MB in the end (delta: 58.7MB). Free memory was 51.3MB in the beginning and 81.6MB in the end (delta: -30.3MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * Witness Printer took 43.80ms. Allocated memory is still 136.3MB. Free memory was 81.6MB in the beginning and 78.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 135 PlacesBefore, 50 PlacesAfterwards, 135 TransitionsBefore, 50 TransitionsAfterwards, 4802 CoEnabledTransitionPairs, 7 FixpointIterations, 35 TrivialSequentialCompositions, 72 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 113 TotalNumberOfCompositions, 17683 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4502, independent: 3927, independent conditional: 0, independent unconditional: 3927, dependent: 575, dependent conditional: 0, dependent unconditional: 575, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2456, independent: 2374, independent conditional: 0, independent unconditional: 2374, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4502, independent: 1553, independent conditional: 0, independent unconditional: 1553, dependent: 493, dependent conditional: 0, dependent unconditional: 493, unknown: 2456, unknown conditional: 0, unknown unconditional: 2456] , Statistics on independence cache: Total cache size (in pairs): 129, Positive cache size: 83, Positive conditional cache size: 0, Positive unconditional cache size: 83, Negative cache size: 46, Negative conditional cache size: 0, Negative unconditional cache size: 46, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: 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 3 procedures, 191 locations, 17 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 511 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 427 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 894 IncrementalHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 28 mSDtfsCounter, 894 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=0, InterpolantAutomatonStates: 28, 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, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2023-08-30 09:46:45,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE