./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread/sync01.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread/sync01.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 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 08:25:28,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:25:28,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:25:29,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:25:29,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:25:29,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:25:29,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:25:29,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:25:29,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:25:29,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:25:29,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:25:29,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:25:29,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:25:29,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:25:29,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:25:29,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:25:29,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:25:29,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:25:29,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:25:29,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:25:29,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:25:29,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:25:29,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:25:29,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:25:29,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:25:29,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:25:29,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:25:29,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:25:29,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:25:29,083 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:25:29,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:25:29,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:25:29,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:25:29,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:25:29,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:25:29,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:25:29,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:25:29,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:25:29,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:25:29,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:25:29,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:25:29,092 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:25:29,123 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:25:29,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:25:29,124 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:25:29,124 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:25:29,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:25:29,125 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:25:29,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:25:29,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:25:29,126 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:25:29,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:25:29,127 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:25:29,127 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:25:29,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:25:29,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:25:29,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:25:29,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:25:29,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:25:29,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:25:29,128 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:25:29,129 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:25:29,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:25:29,129 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:25:29,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:25:29,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:25:29,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:25:29,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:25:29,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:25:29,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:25:29,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:25:29,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:25:29,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:25:29,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:25:29,131 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:25:29,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:25:29,132 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:25:29,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:25:29,132 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:25:29,132 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:25:29,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:25:29,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:25:29,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:25:29,421 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:25:29,421 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:25:29,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2023-08-30 08:25:30,563 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:25:30,773 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:25:30,773 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2023-08-30 08:25:30,788 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8f34f7fc/dbadcbf94a804462bda5ab429584b8bb/FLAG558ca1cbd [2023-08-30 08:25:30,802 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8f34f7fc/dbadcbf94a804462bda5ab429584b8bb [2023-08-30 08:25:30,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:25:30,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:25:30,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:25:30,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:25:30,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:25:30,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:25:30" (1/1) ... [2023-08-30 08:25:30,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29b3c2fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:25:30, skipping insertion in model container [2023-08-30 08:25:30,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:25:30" (1/1) ... [2023-08-30 08:25:30,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:25:30,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:25:31,296 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2023-08-30 08:25:31,297 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:25:31,312 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:25:31,363 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2023-08-30 08:25:31,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:25:31,432 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:25:31,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:25:31 WrapperNode [2023-08-30 08:25:31,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:25:31,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:25:31,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:25:31,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:25:31,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:25:31" (1/1) ... [2023-08-30 08:25:31,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:25:31" (1/1) ... [2023-08-30 08:25:31,495 INFO L138 Inliner]: procedures = 268, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2023-08-30 08:25:31,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:25:31,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:25:31,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:25:31,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:25:31,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:25:31" (1/1) ... [2023-08-30 08:25:31,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:25:31" (1/1) ... [2023-08-30 08:25:31,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:25:31" (1/1) ... [2023-08-30 08:25:31,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:25:31" (1/1) ... [2023-08-30 08:25:31,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:25:31" (1/1) ... [2023-08-30 08:25:31,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:25:31" (1/1) ... [2023-08-30 08:25:31,534 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:25:31" (1/1) ... [2023-08-30 08:25:31,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:25:31" (1/1) ... [2023-08-30 08:25:31,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:25:31,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:25:31,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:25:31,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:25:31,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:25:31" (1/1) ... [2023-08-30 08:25:31,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:25:31,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:25:31,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 08:25:31,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 08:25:31,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:25:31,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:25:31,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 08:25:31,620 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 08:25:31,620 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 08:25:31,620 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-30 08:25:31,620 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-30 08:25:31,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:25:31,620 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 08:25:31,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:25:31,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:25:31,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:25:31,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:25:31,622 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 08:25:31,783 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:25:31,785 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:25:31,943 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:25:31,949 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:25:31,952 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-30 08:25:31,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:25:31 BoogieIcfgContainer [2023-08-30 08:25:31,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:25:31,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:25:31,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:25:31,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:25:31,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:25:30" (1/3) ... [2023-08-30 08:25:31,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d66afb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:25:31, skipping insertion in model container [2023-08-30 08:25:31,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:25:31" (2/3) ... [2023-08-30 08:25:31,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d66afb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:25:31, skipping insertion in model container [2023-08-30 08:25:31,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:25:31" (3/3) ... [2023-08-30 08:25:31,963 INFO L112 eAbstractionObserver]: Analyzing ICFG sync01.i [2023-08-30 08:25:31,971 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:25:31,979 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:25:31,979 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 08:25:31,980 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:25:32,050 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 08:25:32,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 110 transitions, 236 flow [2023-08-30 08:25:32,166 INFO L130 PetriNetUnfolder]: 5/108 cut-off events. [2023-08-30 08:25:32,167 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 08:25:32,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 108 events. 5/108 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-08-30 08:25:32,172 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 110 transitions, 236 flow [2023-08-30 08:25:32,177 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 95 transitions, 199 flow [2023-08-30 08:25:32,180 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:25:32,190 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 95 transitions, 199 flow [2023-08-30 08:25:32,192 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 95 transitions, 199 flow [2023-08-30 08:25:32,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 95 transitions, 199 flow [2023-08-30 08:25:32,215 INFO L130 PetriNetUnfolder]: 4/95 cut-off events. [2023-08-30 08:25:32,215 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 08:25:32,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 95 events. 4/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-08-30 08:25:32,217 INFO L119 LiptonReduction]: Number of co-enabled transitions 1292 [2023-08-30 08:25:35,744 INFO L134 LiptonReduction]: Checked pairs total: 2917 [2023-08-30 08:25:35,745 INFO L136 LiptonReduction]: Total number of compositions: 70 [2023-08-30 08:25:35,756 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:25:35,761 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;@427ef717, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:25:35,761 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-30 08:25:35,764 INFO L130 PetriNetUnfolder]: 2/11 cut-off events. [2023-08-30 08:25:35,764 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:25:35,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:25:35,765 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 08:25:35,765 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-30 08:25:35,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:25:35,769 INFO L85 PathProgramCache]: Analyzing trace with hash 364231526, now seen corresponding path program 1 times [2023-08-30 08:25:35,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:25:35,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833689918] [2023-08-30 08:25:35,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:25:35,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:25:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:25:35,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:25:35,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:25:35,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833689918] [2023-08-30 08:25:35,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833689918] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:25:35,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:25:35,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:25:35,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084343767] [2023-08-30 08:25:35,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:25:35,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 08:25:35,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:25:35,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 08:25:35,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 08:25:35,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 180 [2023-08-30 08:25:35,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 67 flow. Second operand has 2 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:35,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:25:35,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 180 [2023-08-30 08:25:35,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:25:36,034 INFO L130 PetriNetUnfolder]: 96/217 cut-off events. [2023-08-30 08:25:36,034 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-08-30 08:25:36,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 217 events. 96/217 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 951 event pairs, 72 based on Foata normal form. 24/197 useless extension candidates. Maximal degree in co-relation 350. Up to 168 conditions per place. [2023-08-30 08:25:36,037 INFO L137 encePairwiseOnDemand]: 178/180 looper letters, 17 selfloop transitions, 0 changer transitions 0/27 dead transitions. [2023-08-30 08:25:36,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 27 transitions, 97 flow [2023-08-30 08:25:36,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 08:25:36,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 08:25:36,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 223 transitions. [2023-08-30 08:25:36,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6194444444444445 [2023-08-30 08:25:36,050 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 223 transitions. [2023-08-30 08:25:36,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 223 transitions. [2023-08-30 08:25:36,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:25:36,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 223 transitions. [2023-08-30 08:25:36,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,059 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,060 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 67 flow. Second operand 2 states and 223 transitions. [2023-08-30 08:25:36,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 27 transitions, 97 flow [2023-08-30 08:25:36,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 27 transitions, 92 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:25:36,064 INFO L231 Difference]: Finished difference. Result has 30 places, 27 transitions, 58 flow [2023-08-30 08:25:36,065 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=58, PETRI_PLACES=30, PETRI_TRANSITIONS=27} [2023-08-30 08:25:36,068 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2023-08-30 08:25:36,068 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 27 transitions, 58 flow [2023-08-30 08:25:36,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:25:36,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:25:36,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:25:36,069 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-30 08:25:36,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:25:36,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1593780132, now seen corresponding path program 1 times [2023-08-30 08:25:36,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:25:36,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818266465] [2023-08-30 08:25:36,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:25:36,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:25:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:25:36,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:25:36,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:25:36,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818266465] [2023-08-30 08:25:36,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818266465] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:25:36,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:25:36,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:25:36,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365950522] [2023-08-30 08:25:36,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:25:36,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:25:36,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:25:36,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:25:36,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:25:36,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 180 [2023-08-30 08:25:36,239 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,239 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:25:36,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 180 [2023-08-30 08:25:36,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:25:36,283 INFO L130 PetriNetUnfolder]: 49/118 cut-off events. [2023-08-30 08:25:36,283 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:25:36,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 118 events. 49/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 306 event pairs, 21 based on Foata normal form. 12/119 useless extension candidates. Maximal degree in co-relation 217. Up to 59 conditions per place. [2023-08-30 08:25:36,285 INFO L137 encePairwiseOnDemand]: 176/180 looper letters, 14 selfloop transitions, 2 changer transitions 4/27 dead transitions. [2023-08-30 08:25:36,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 27 transitions, 98 flow [2023-08-30 08:25:36,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:25:36,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:25:36,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2023-08-30 08:25:36,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.562962962962963 [2023-08-30 08:25:36,288 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2023-08-30 08:25:36,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2023-08-30 08:25:36,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:25:36,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2023-08-30 08:25:36,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,292 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,292 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 58 flow. Second operand 3 states and 304 transitions. [2023-08-30 08:25:36,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 27 transitions, 98 flow [2023-08-30 08:25:36,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 27 transitions, 98 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 08:25:36,293 INFO L231 Difference]: Finished difference. Result has 31 places, 20 transitions, 51 flow [2023-08-30 08:25:36,293 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=31, PETRI_TRANSITIONS=20} [2023-08-30 08:25:36,294 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2023-08-30 08:25:36,294 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 20 transitions, 51 flow [2023-08-30 08:25:36,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:25:36,295 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:25:36,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:25:36,296 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-30 08:25:36,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:25:36,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1860190177, now seen corresponding path program 1 times [2023-08-30 08:25:36,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:25:36,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205554071] [2023-08-30 08:25:36,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:25:36,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:25:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:25:36,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:25:36,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:25:36,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205554071] [2023-08-30 08:25:36,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205554071] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:25:36,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:25:36,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:25:36,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147984441] [2023-08-30 08:25:36,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:25:36,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:25:36,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:25:36,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:25:36,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:25:36,407 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 180 [2023-08-30 08:25:36,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 20 transitions, 51 flow. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:25:36,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 180 [2023-08-30 08:25:36,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:25:36,450 INFO L130 PetriNetUnfolder]: 39/88 cut-off events. [2023-08-30 08:25:36,451 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 08:25:36,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 88 events. 39/88 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 190 event pairs, 11 based on Foata normal form. 4/89 useless extension candidates. Maximal degree in co-relation 178. Up to 37 conditions per place. [2023-08-30 08:25:36,452 INFO L137 encePairwiseOnDemand]: 175/180 looper letters, 16 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2023-08-30 08:25:36,452 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 24 transitions, 97 flow [2023-08-30 08:25:36,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:25:36,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:25:36,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 381 transitions. [2023-08-30 08:25:36,455 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5291666666666667 [2023-08-30 08:25:36,455 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 381 transitions. [2023-08-30 08:25:36,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 381 transitions. [2023-08-30 08:25:36,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:25:36,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 381 transitions. [2023-08-30 08:25:36,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,460 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,460 INFO L175 Difference]: Start difference. First operand has 31 places, 20 transitions, 51 flow. Second operand 4 states and 381 transitions. [2023-08-30 08:25:36,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 24 transitions, 97 flow [2023-08-30 08:25:36,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 24 transitions, 93 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 08:25:36,461 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 49 flow [2023-08-30 08:25:36,461 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=49, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2023-08-30 08:25:36,462 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -6 predicate places. [2023-08-30 08:25:36,462 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 49 flow [2023-08-30 08:25:36,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:25:36,463 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:25:36,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:25:36,463 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-30 08:25:36,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:25:36,464 INFO L85 PathProgramCache]: Analyzing trace with hash 2070238916, now seen corresponding path program 1 times [2023-08-30 08:25:36,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:25:36,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887814026] [2023-08-30 08:25:36,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:25:36,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:25:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:25:36,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:25:36,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:25:36,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887814026] [2023-08-30 08:25:36,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887814026] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:25:36,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:25:36,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:25:36,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063891475] [2023-08-30 08:25:36,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:25:36,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:25:36,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:25:36,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:25:36,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:25:36,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 180 [2023-08-30 08:25:36,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:25:36,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 180 [2023-08-30 08:25:36,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:25:36,644 INFO L130 PetriNetUnfolder]: 22/71 cut-off events. [2023-08-30 08:25:36,644 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:25:36,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 71 events. 22/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 173 event pairs, 7 based on Foata normal form. 10/81 useless extension candidates. Maximal degree in co-relation 144. Up to 31 conditions per place. [2023-08-30 08:25:36,645 INFO L137 encePairwiseOnDemand]: 175/180 looper letters, 10 selfloop transitions, 5 changer transitions 0/21 dead transitions. [2023-08-30 08:25:36,645 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 21 transitions, 87 flow [2023-08-30 08:25:36,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:25:36,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:25:36,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2023-08-30 08:25:36,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5444444444444444 [2023-08-30 08:25:36,647 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 294 transitions. [2023-08-30 08:25:36,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 294 transitions. [2023-08-30 08:25:36,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:25:36,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 294 transitions. [2023-08-30 08:25:36,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,658 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,658 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 49 flow. Second operand 3 states and 294 transitions. [2023-08-30 08:25:36,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 21 transitions, 87 flow [2023-08-30 08:25:36,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 21 transitions, 81 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:25:36,659 INFO L231 Difference]: Finished difference. Result has 25 places, 18 transitions, 53 flow [2023-08-30 08:25:36,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=25, PETRI_TRANSITIONS=18} [2023-08-30 08:25:36,660 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -7 predicate places. [2023-08-30 08:25:36,660 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 18 transitions, 53 flow [2023-08-30 08:25:36,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:25:36,661 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:25:36,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:25:36,661 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-30 08:25:36,662 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:25:36,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1700593133, now seen corresponding path program 1 times [2023-08-30 08:25:36,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:25:36,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590518046] [2023-08-30 08:25:36,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:25:36,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:25:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:25:36,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:25:36,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:25:36,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590518046] [2023-08-30 08:25:36,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590518046] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:25:36,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:25:36,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:25:36,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537551552] [2023-08-30 08:25:36,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:25:36,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:25:36,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:25:36,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:25:36,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:25:36,790 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 180 [2023-08-30 08:25:36,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 53 flow. Second operand has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,791 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:25:36,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 180 [2023-08-30 08:25:36,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:25:36,846 INFO L130 PetriNetUnfolder]: 27/72 cut-off events. [2023-08-30 08:25:36,846 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 08:25:36,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 72 events. 27/72 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 158 event pairs, 8 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 174. Up to 29 conditions per place. [2023-08-30 08:25:36,847 INFO L137 encePairwiseOnDemand]: 175/180 looper letters, 17 selfloop transitions, 4 changer transitions 0/23 dead transitions. [2023-08-30 08:25:36,847 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 109 flow [2023-08-30 08:25:36,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:25:36,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:25:36,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 532 transitions. [2023-08-30 08:25:36,849 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4925925925925926 [2023-08-30 08:25:36,849 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 532 transitions. [2023-08-30 08:25:36,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 532 transitions. [2023-08-30 08:25:36,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:25:36,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 532 transitions. [2023-08-30 08:25:36,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.66666666666667) internal successors, (532), 6 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,853 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,854 INFO L175 Difference]: Start difference. First operand has 25 places, 18 transitions, 53 flow. Second operand 6 states and 532 transitions. [2023-08-30 08:25:36,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 109 flow [2023-08-30 08:25:36,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 102 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:25:36,855 INFO L231 Difference]: Finished difference. Result has 28 places, 17 transitions, 54 flow [2023-08-30 08:25:36,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=54, PETRI_PLACES=28, PETRI_TRANSITIONS=17} [2023-08-30 08:25:36,856 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -4 predicate places. [2023-08-30 08:25:36,856 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 17 transitions, 54 flow [2023-08-30 08:25:36,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:25:36,857 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:25:36,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 08:25:36,857 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-30 08:25:36,857 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:25:36,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1700593204, now seen corresponding path program 1 times [2023-08-30 08:25:36,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:25:36,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620629774] [2023-08-30 08:25:36,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:25:36,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:25:36,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:25:36,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:25:36,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:25:36,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620629774] [2023-08-30 08:25:36,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620629774] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:25:36,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:25:36,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:25:36,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718968378] [2023-08-30 08:25:36,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:25:36,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:25:36,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:25:36,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:25:36,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:25:36,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 180 [2023-08-30 08:25:36,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 17 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:25:36,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 180 [2023-08-30 08:25:36,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:25:36,958 INFO L130 PetriNetUnfolder]: 24/66 cut-off events. [2023-08-30 08:25:36,958 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 08:25:36,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 66 events. 24/66 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 154 event pairs, 16 based on Foata normal form. 2/65 useless extension candidates. Maximal degree in co-relation 153. Up to 50 conditions per place. [2023-08-30 08:25:36,959 INFO L137 encePairwiseOnDemand]: 177/180 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-08-30 08:25:36,959 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 18 transitions, 86 flow [2023-08-30 08:25:36,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:25:36,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:25:36,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 376 transitions. [2023-08-30 08:25:36,961 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5222222222222223 [2023-08-30 08:25:36,961 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 376 transitions. [2023-08-30 08:25:36,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 376 transitions. [2023-08-30 08:25:36,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:25:36,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 376 transitions. [2023-08-30 08:25:36,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,964 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,964 INFO L175 Difference]: Start difference. First operand has 28 places, 17 transitions, 54 flow. Second operand 4 states and 376 transitions. [2023-08-30 08:25:36,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 18 transitions, 86 flow [2023-08-30 08:25:36,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 79 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 08:25:36,965 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2023-08-30 08:25:36,965 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2023-08-30 08:25:36,966 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -6 predicate places. [2023-08-30 08:25:36,966 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2023-08-30 08:25:36,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:25:36,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-08-30 08:25:36,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-08-30 08:25:36,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-08-30 08:25:36,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-08-30 08:25:36,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-08-30 08:25:36,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-08-30 08:25:36,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-08-30 08:25:36,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-08-30 08:25:36,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-08-30 08:25:36,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-08-30 08:25:36,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 08:25:36,971 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-30 08:25:36,976 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:25:36,976 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:25:36,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:25:36 BasicIcfg [2023-08-30 08:25:36,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:25:36,979 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:25:36,979 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:25:36,980 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:25:36,980 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:25:31" (3/4) ... [2023-08-30 08:25:36,982 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:25:36,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-30 08:25:36,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-30 08:25:36,989 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-08-30 08:25:36,990 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 08:25:36,990 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 08:25:36,990 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:25:37,026 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:25:37,027 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:25:37,027 INFO L158 Benchmark]: Toolchain (without parser) took 6215.11ms. Allocated memory was 60.8MB in the beginning and 113.2MB in the end (delta: 52.4MB). Free memory was 28.0MB in the beginning and 32.3MB in the end (delta: -4.4MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2023-08-30 08:25:37,027 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 50.3MB. Free memory was 28.6MB in the beginning and 28.5MB in the end (delta: 47.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:25:37,028 INFO L158 Benchmark]: CACSL2BoogieTranslator took 616.02ms. Allocated memory is still 60.8MB. Free memory was 27.8MB in the beginning and 30.8MB in the end (delta: -3.0MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2023-08-30 08:25:37,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.67ms. Allocated memory is still 60.8MB. Free memory was 30.8MB in the beginning and 28.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:25:37,028 INFO L158 Benchmark]: Boogie Preprocessor took 48.38ms. Allocated memory is still 60.8MB. Free memory was 28.3MB in the beginning and 26.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:25:37,028 INFO L158 Benchmark]: RCFGBuilder took 409.20ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 26.7MB in the beginning and 41.1MB in the end (delta: -14.4MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2023-08-30 08:25:37,029 INFO L158 Benchmark]: TraceAbstraction took 5022.04ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 40.3MB in the beginning and 34.4MB in the end (delta: 5.9MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2023-08-30 08:25:37,029 INFO L158 Benchmark]: Witness Printer took 47.45ms. Allocated memory is still 113.2MB. Free memory was 34.4MB in the beginning and 32.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:25:37,031 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 50.3MB. Free memory was 28.6MB in the beginning and 28.5MB in the end (delta: 47.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 616.02ms. Allocated memory is still 60.8MB. Free memory was 27.8MB in the beginning and 30.8MB in the end (delta: -3.0MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.67ms. Allocated memory is still 60.8MB. Free memory was 30.8MB in the beginning and 28.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.38ms. Allocated memory is still 60.8MB. Free memory was 28.3MB in the beginning and 26.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 409.20ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 26.7MB in the beginning and 41.1MB in the end (delta: -14.4MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5022.04ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 40.3MB in the beginning and 34.4MB in the end (delta: 5.9MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. * Witness Printer took 47.45ms. Allocated memory is still 113.2MB. Free memory was 34.4MB in the beginning and 32.3MB in the end (delta: 2.1MB). 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: 3.6s, 98 PlacesBefore, 32 PlacesAfterwards, 95 TransitionsBefore, 29 TransitionsAfterwards, 1292 CoEnabledTransitionPairs, 6 FixpointIterations, 43 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 70 TotalNumberOfCompositions, 2917 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1586, independent: 1469, independent conditional: 0, independent unconditional: 1469, dependent: 117, dependent conditional: 0, dependent unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 687, independent: 649, independent conditional: 0, independent unconditional: 649, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1586, independent: 820, independent conditional: 0, independent unconditional: 820, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 687, unknown conditional: 0, unknown unconditional: 687] , Statistics on independence cache: Total cache size (in pairs): 124, Positive cache size: 109, Positive conditional cache size: 0, Positive unconditional cache size: 109, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 938]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 938]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: 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 5 procedures, 144 locations, 10 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: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 215 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 119 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 334 IncrementalHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 39 mSDtfsCounter, 334 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 08:25:37,061 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