./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 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 ../sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.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 29686c593874684b7702dd35cbbbd25416d0d0dde1b2c7e324de66da32235cfd --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:02:54,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:02:54,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:02:54,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:02:54,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:02:54,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:02:54,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:02:54,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:02:54,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:02:54,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:02:54,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:02:54,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:02:54,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:02:54,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:02:54,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:02:54,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:02:54,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:02:54,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:02:54,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:02:54,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:02:54,982 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:02:54,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:02:54,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:02:54,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:02:54,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:02:54,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:02:54,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:02:54,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:02:54,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:02:54,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:02:54,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:02:54,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:02:54,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:02:54,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:02:54,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:02:54,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:02:54,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:02:54,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:02:54,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:02:54,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:02:54,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:02:55,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:02:55,001 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:02:55,020 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:02:55,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:02:55,021 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:02:55,021 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:02:55,021 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:02:55,021 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:02:55,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:02:55,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:02:55,022 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:02:55,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:02:55,023 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:02:55,023 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:02:55,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:02:55,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:02:55,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:02:55,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:02:55,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:02:55,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:02:55,024 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:02:55,024 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:02:55,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:02:55,025 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:02:55,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:02:55,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:02:55,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:02:55,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:02:55,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:02:55,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:02:55,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:02:55,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:02:55,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:02:55,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:02:55,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:02:55,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29686c593874684b7702dd35cbbbd25416d0d0dde1b2c7e324de66da32235cfd [2022-07-14 14:02:55,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:02:55,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:02:55,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:02:55,229 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:02:55,230 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:02:55,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i [2022-07-14 14:02:55,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23e161ddb/5a8d7c670cd043898984b76bb7bf8122/FLAG883eabb35 [2022-07-14 14:02:55,699 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:02:55,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i [2022-07-14 14:02:55,712 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23e161ddb/5a8d7c670cd043898984b76bb7bf8122/FLAG883eabb35 [2022-07-14 14:02:55,722 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23e161ddb/5a8d7c670cd043898984b76bb7bf8122 [2022-07-14 14:02:55,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:02:55,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:02:55,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:02:55,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:02:55,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:02:55,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:02:55" (1/1) ... [2022-07-14 14:02:55,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31933344 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:55, skipping insertion in model container [2022-07-14 14:02:55,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:02:55" (1/1) ... [2022-07-14 14:02:55,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:02:55,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:02:56,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:02:56,034 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:02:56,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:02:56,099 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:02:56,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:56 WrapperNode [2022-07-14 14:02:56,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:02:56,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:02:56,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:02:56,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:02:56,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:56" (1/1) ... [2022-07-14 14:02:56,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:56" (1/1) ... [2022-07-14 14:02:56,146 INFO L137 Inliner]: procedures = 163, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2022-07-14 14:02:56,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:02:56,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:02:56,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:02:56,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:02:56,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:56" (1/1) ... [2022-07-14 14:02:56,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:56" (1/1) ... [2022-07-14 14:02:56,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:56" (1/1) ... [2022-07-14 14:02:56,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:56" (1/1) ... [2022-07-14 14:02:56,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:56" (1/1) ... [2022-07-14 14:02:56,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:56" (1/1) ... [2022-07-14 14:02:56,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:56" (1/1) ... [2022-07-14 14:02:56,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:02:56,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:02:56,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:02:56,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:02:56,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:56" (1/1) ... [2022-07-14 14:02:56,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:02:56,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:02:56,217 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) [2022-07-14 14:02:56,235 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 [2022-07-14 14:02:56,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:02:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:02:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-14 14:02:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:02:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:02:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-14 14:02:56,252 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-14 14:02:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:02:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-07-14 14:02:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:02:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:02:56,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:02:56,254 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-14 14:02:56,379 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:02:56,380 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:02:56,558 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:02:56,565 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:02:56,565 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 14:02:56,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:02:56 BoogieIcfgContainer [2022-07-14 14:02:56,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:02:56,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:02:56,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:02:56,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:02:56,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:02:55" (1/3) ... [2022-07-14 14:02:56,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7095a032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:02:56, skipping insertion in model container [2022-07-14 14:02:56,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:56" (2/3) ... [2022-07-14 14:02:56,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7095a032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:02:56, skipping insertion in model container [2022-07-14 14:02:56,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:02:56" (3/3) ... [2022-07-14 14:02:56,574 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_42-trylock_2mutex.i [2022-07-14 14:02:56,577 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-14 14:02:56,584 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:02:56,584 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-14 14:02:56,584 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-14 14:02:56,631 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-07-14 14:02:56,660 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:02:56,670 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 82 transitions, 172 flow [2022-07-14 14:02:56,674 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 82 transitions, 172 flow [2022-07-14 14:02:56,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 82 transitions, 172 flow [2022-07-14 14:02:56,710 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2022-07-14 14:02:56,710 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-14 14:02:56,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 81 events. 2/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 77 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2022-07-14 14:02:56,716 INFO L116 LiptonReduction]: Number of co-enabled transitions 966 [2022-07-14 14:02:58,814 INFO L131 LiptonReduction]: Checked pairs total: 3348 [2022-07-14 14:02:58,815 INFO L133 LiptonReduction]: Total number of compositions: 68 [2022-07-14 14:02:58,823 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 27 transitions, 62 flow [2022-07-14 14:02:58,846 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 128 states, 112 states have (on average 2.169642857142857) internal successors, (243), 127 states have internal predecessors, (243), 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) [2022-07-14 14:02:58,857 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:02:58,862 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=FINITE_AUTOMATA, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@30c0424, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4fa75d6d [2022-07-14 14:02:58,862 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-07-14 14:02:58,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 112 states have (on average 2.169642857142857) internal successors, (243), 127 states have internal predecessors, (243), 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) [2022-07-14 14:02:58,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-14 14:02:58,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:02:58,867 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-14 14:02:58,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-07-14 14:02:58,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:02:58,870 INFO L85 PathProgramCache]: Analyzing trace with hash 291787, now seen corresponding path program 1 times [2022-07-14 14:02:58,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:02:58,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671881363] [2022-07-14 14:02:58,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:02:58,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:02:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:02:58,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:02:58,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:02:58,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671881363] [2022-07-14 14:02:58,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671881363] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:02:58,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:02:58,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:02:59,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771469573] [2022-07-14 14:02:59,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:02:59,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:02:59,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:02:59,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:02:59,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:02:59,019 INFO L87 Difference]: Start difference. First operand has 128 states, 112 states have (on average 2.169642857142857) internal successors, (243), 127 states have internal predecessors, (243), 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-07-14 14:02:59,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:02:59,066 INFO L93 Difference]: Finished difference Result 112 states and 209 transitions. [2022-07-14 14:02:59,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:02:59,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2022-07-14 14:02:59,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:02:59,074 INFO L225 Difference]: With dead ends: 112 [2022-07-14 14:02:59,074 INFO L226 Difference]: Without dead ends: 106 [2022-07-14 14:02:59,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:02:59,076 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 10 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:02:59,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 6 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:02:59,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-07-14 14:02:59,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-07-14 14:02:59,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 96 states have (on average 2.0520833333333335) internal successors, (197), 105 states have internal predecessors, (197), 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) [2022-07-14 14:02:59,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 197 transitions. [2022-07-14 14:02:59,104 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 197 transitions. Word has length 3 [2022-07-14 14:02:59,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:02:59,104 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 197 transitions. [2022-07-14 14:02:59,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-07-14 14:02:59,104 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 197 transitions. [2022-07-14 14:02:59,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-14 14:02:59,104 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:02:59,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-14 14:02:59,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:02:59,105 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-07-14 14:02:59,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:02:59,105 INFO L85 PathProgramCache]: Analyzing trace with hash 9045382, now seen corresponding path program 1 times [2022-07-14 14:02:59,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:02:59,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879867661] [2022-07-14 14:02:59,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:02:59,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:02:59,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:02:59,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:02:59,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:02:59,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879867661] [2022-07-14 14:02:59,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879867661] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:02:59,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:02:59,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:02:59,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070114088] [2022-07-14 14:02:59,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:02:59,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:02:59,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:02:59,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:02:59,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:02:59,172 INFO L87 Difference]: Start difference. First operand 106 states and 197 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-07-14 14:02:59,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:02:59,202 INFO L93 Difference]: Finished difference Result 72 states and 129 transitions. [2022-07-14 14:02:59,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:02:59,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-07-14 14:02:59,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:02:59,202 INFO L225 Difference]: With dead ends: 72 [2022-07-14 14:02:59,203 INFO L226 Difference]: Without dead ends: 60 [2022-07-14 14:02:59,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:02:59,204 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:02:59,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 4 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:02:59,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-07-14 14:02:59,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-07-14 14:02:59,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 56 states have (on average 1.875) internal successors, (105), 59 states have internal predecessors, (105), 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) [2022-07-14 14:02:59,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 105 transitions. [2022-07-14 14:02:59,209 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 105 transitions. Word has length 4 [2022-07-14 14:02:59,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:02:59,209 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 105 transitions. [2022-07-14 14:02:59,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-07-14 14:02:59,210 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 105 transitions. [2022-07-14 14:02:59,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 14:02:59,210 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:02:59,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-14 14:02:59,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 14:02:59,210 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-07-14 14:02:59,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:02:59,211 INFO L85 PathProgramCache]: Analyzing trace with hash 102686701, now seen corresponding path program 1 times [2022-07-14 14:02:59,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:02:59,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698213221] [2022-07-14 14:02:59,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:02:59,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:02:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:02:59,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:02:59,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:02:59,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698213221] [2022-07-14 14:02:59,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698213221] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:02:59,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:02:59,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:02:59,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200398713] [2022-07-14 14:02:59,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:02:59,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:02:59,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:02:59,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:02:59,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:02:59,257 INFO L87 Difference]: Start difference. First operand 60 states and 105 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-07-14 14:02:59,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:02:59,297 INFO L93 Difference]: Finished difference Result 57 states and 100 transitions. [2022-07-14 14:02:59,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:02:59,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-07-14 14:02:59,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:02:59,301 INFO L225 Difference]: With dead ends: 57 [2022-07-14 14:02:59,301 INFO L226 Difference]: Without dead ends: 57 [2022-07-14 14:02:59,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:02:59,304 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:02:59,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 6 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:02:59,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-07-14 14:02:59,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-07-14 14:02:59,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 54 states have (on average 1.8518518518518519) internal successors, (100), 56 states have internal predecessors, (100), 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) [2022-07-14 14:02:59,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 100 transitions. [2022-07-14 14:02:59,310 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 100 transitions. Word has length 6 [2022-07-14 14:02:59,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:02:59,310 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 100 transitions. [2022-07-14 14:02:59,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-07-14 14:02:59,311 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 100 transitions. [2022-07-14 14:02:59,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-14 14:02:59,311 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:02:59,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:02:59,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 14:02:59,311 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-07-14 14:02:59,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:02:59,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1118464196, now seen corresponding path program 1 times [2022-07-14 14:02:59,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:02:59,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806242119] [2022-07-14 14:02:59,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:02:59,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:02:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:02:59,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:02:59,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:02:59,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806242119] [2022-07-14 14:02:59,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806242119] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:02:59,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:02:59,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:02:59,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508040080] [2022-07-14 14:02:59,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:02:59,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:02:59,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:02:59,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:02:59,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:02:59,347 INFO L87 Difference]: Start difference. First operand 57 states and 100 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-14 14:02:59,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:02:59,383 INFO L93 Difference]: Finished difference Result 52 states and 72 transitions. [2022-07-14 14:02:59,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:02:59,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2022-07-14 14:02:59,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:02:59,384 INFO L225 Difference]: With dead ends: 52 [2022-07-14 14:02:59,384 INFO L226 Difference]: Without dead ends: 51 [2022-07-14 14:02:59,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:02:59,386 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:02:59,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:02:59,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-14 14:02:59,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2022-07-14 14:02:59,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 41 states have (on average 1.5853658536585367) internal successors, (65), 43 states have internal predecessors, (65), 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) [2022-07-14 14:02:59,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 65 transitions. [2022-07-14 14:02:59,392 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 65 transitions. Word has length 7 [2022-07-14 14:02:59,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:02:59,393 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 65 transitions. [2022-07-14 14:02:59,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-14 14:02:59,393 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 65 transitions. [2022-07-14 14:02:59,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-14 14:02:59,394 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:02:59,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:02:59,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 14:02:59,394 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-07-14 14:02:59,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:02:59,396 INFO L85 PathProgramCache]: Analyzing trace with hash -102411570, now seen corresponding path program 1 times [2022-07-14 14:02:59,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:02:59,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411563492] [2022-07-14 14:02:59,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:02:59,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:02:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:02:59,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:02:59,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:02:59,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411563492] [2022-07-14 14:02:59,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411563492] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:02:59,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:02:59,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:02:59,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131378936] [2022-07-14 14:02:59,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:02:59,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:02:59,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:02:59,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:02:59,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:02:59,450 INFO L87 Difference]: Start difference. First operand 44 states and 65 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-07-14 14:02:59,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:02:59,482 INFO L93 Difference]: Finished difference Result 42 states and 62 transitions. [2022-07-14 14:02:59,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:02:59,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2022-07-14 14:02:59,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:02:59,486 INFO L225 Difference]: With dead ends: 42 [2022-07-14 14:02:59,486 INFO L226 Difference]: Without dead ends: 36 [2022-07-14 14:02:59,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:02:59,487 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 22 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:02:59,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 5 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:02:59,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-07-14 14:02:59,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-07-14 14:02:59,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.6176470588235294) internal successors, (55), 35 states have internal predecessors, (55), 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) [2022-07-14 14:02:59,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 55 transitions. [2022-07-14 14:02:59,493 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 55 transitions. Word has length 8 [2022-07-14 14:02:59,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:02:59,493 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 55 transitions. [2022-07-14 14:02:59,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-07-14 14:02:59,510 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 55 transitions. [2022-07-14 14:02:59,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-14 14:02:59,510 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:02:59,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:02:59,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 14:02:59,511 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-07-14 14:02:59,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:02:59,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1320932549, now seen corresponding path program 1 times [2022-07-14 14:02:59,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:02:59,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375694732] [2022-07-14 14:02:59,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:02:59,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:02:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:02:59,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:02:59,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:02:59,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375694732] [2022-07-14 14:02:59,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375694732] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:02:59,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:02:59,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:02:59,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474315497] [2022-07-14 14:02:59,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:02:59,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:02:59,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:02:59,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:02:59,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:02:59,556 INFO L87 Difference]: Start difference. First operand 36 states and 55 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-07-14 14:02:59,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:02:59,576 INFO L93 Difference]: Finished difference Result 34 states and 52 transitions. [2022-07-14 14:02:59,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:02:59,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2022-07-14 14:02:59,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:02:59,577 INFO L225 Difference]: With dead ends: 34 [2022-07-14 14:02:59,577 INFO L226 Difference]: Without dead ends: 34 [2022-07-14 14:02:59,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:02:59,580 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:02:59,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:02:59,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-07-14 14:02:59,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-07-14 14:02:59,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.5757575757575757) internal successors, (52), 33 states have internal predecessors, (52), 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) [2022-07-14 14:02:59,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 52 transitions. [2022-07-14 14:02:59,583 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 52 transitions. Word has length 10 [2022-07-14 14:02:59,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:02:59,584 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 52 transitions. [2022-07-14 14:02:59,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-07-14 14:02:59,584 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2022-07-14 14:02:59,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 14:02:59,585 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:02:59,585 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:02:59,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 14:02:59,585 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-07-14 14:02:59,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:02:59,586 INFO L85 PathProgramCache]: Analyzing trace with hash 2000763550, now seen corresponding path program 1 times [2022-07-14 14:02:59,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:02:59,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258667750] [2022-07-14 14:02:59,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:02:59,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:02:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:02:59,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:02:59,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:02:59,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258667750] [2022-07-14 14:02:59,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258667750] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:02:59,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:02:59,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:02:59,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616126466] [2022-07-14 14:02:59,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:02:59,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:02:59,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:02:59,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:02:59,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:02:59,640 INFO L87 Difference]: Start difference. First operand 34 states and 52 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-07-14 14:02:59,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:02:59,655 INFO L93 Difference]: Finished difference Result 32 states and 49 transitions. [2022-07-14 14:02:59,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:02:59,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) Word has length 11 [2022-07-14 14:02:59,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:02:59,656 INFO L225 Difference]: With dead ends: 32 [2022-07-14 14:02:59,656 INFO L226 Difference]: Without dead ends: 0 [2022-07-14 14:02:59,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:02:59,657 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 18 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:02:59,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:02:59,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-14 14:02:59,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-14 14:02:59,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-07-14 14:02:59,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-14 14:02:59,659 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-07-14 14:02:59,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:02:59,659 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 14:02:59,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-07-14 14:02:59,659 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-14 14:02:59,659 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-14 14:02:59,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 11 remaining) [2022-07-14 14:02:59,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2022-07-14 14:02:59,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2022-07-14 14:02:59,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2022-07-14 14:02:59,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2022-07-14 14:02:59,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2022-07-14 14:02:59,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2022-07-14 14:02:59,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2022-07-14 14:02:59,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2022-07-14 14:02:59,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2022-07-14 14:02:59,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2022-07-14 14:02:59,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 14:02:59,666 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:02:59,669 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-14 14:02:59,670 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 14:02:59,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 02:02:59 BasicIcfg [2022-07-14 14:02:59,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 14:02:59,674 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 14:02:59,674 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 14:02:59,674 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 14:02:59,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:02:56" (3/4) ... [2022-07-14 14:02:59,676 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-14 14:02:59,680 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-07-14 14:02:59,682 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-07-14 14:02:59,683 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-14 14:02:59,683 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-14 14:02:59,701 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 14:02:59,701 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 14:02:59,702 INFO L158 Benchmark]: Toolchain (without parser) took 3968.16ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 80.8MB in the beginning and 95.7MB in the end (delta: -14.9MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2022-07-14 14:02:59,702 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 75.5MB. Free memory was 32.2MB in the beginning and 32.1MB in the end (delta: 36.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:02:59,702 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.37ms. Allocated memory is still 115.3MB. Free memory was 80.6MB in the beginning and 80.4MB in the end (delta: 231.2kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-14 14:02:59,702 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.65ms. Allocated memory is still 115.3MB. Free memory was 80.4MB in the beginning and 78.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:02:59,702 INFO L158 Benchmark]: Boogie Preprocessor took 36.67ms. Allocated memory is still 115.3MB. Free memory was 78.9MB in the beginning and 77.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:02:59,703 INFO L158 Benchmark]: RCFGBuilder took 382.49ms. Allocated memory is still 115.3MB. Free memory was 77.5MB in the beginning and 64.2MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-14 14:02:59,703 INFO L158 Benchmark]: TraceAbstraction took 3104.91ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 63.6MB in the beginning and 97.8MB in the end (delta: -34.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:02:59,703 INFO L158 Benchmark]: Witness Printer took 27.10ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 95.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:02:59,704 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 75.5MB. Free memory was 32.2MB in the beginning and 32.1MB in the end (delta: 36.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.37ms. Allocated memory is still 115.3MB. Free memory was 80.6MB in the beginning and 80.4MB in the end (delta: 231.2kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.65ms. Allocated memory is still 115.3MB. Free memory was 80.4MB in the beginning and 78.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.67ms. Allocated memory is still 115.3MB. Free memory was 78.9MB in the beginning and 77.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 382.49ms. Allocated memory is still 115.3MB. Free memory was 77.5MB in the beginning and 64.2MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3104.91ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 63.6MB in the beginning and 97.8MB in the end (delta: -34.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 27.10ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 95.7MB 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: 2.1s, 84 PlacesBefore, 30 PlacesAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 966 CoEnabledTransitionPairs, 6 FixpointIterations, 33 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 68 TotalNumberOfCompositions, 3348 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1618, positive: 1408, positive conditional: 0, positive unconditional: 1408, negative: 210, negative conditional: 0, negative unconditional: 210, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 776, positive: 696, positive conditional: 0, positive unconditional: 696, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 776, positive: 665, positive conditional: 0, positive unconditional: 665, negative: 111, negative conditional: 0, negative unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 111, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 222, positive: 74, positive conditional: 0, positive unconditional: 74, negative: 148, negative conditional: 0, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1618, positive: 712, positive conditional: 0, positive unconditional: 712, negative: 130, negative conditional: 0, negative unconditional: 130, unknown: 776, unknown conditional: 0, unknown unconditional: 776] , Statistics on independence cache: Total cache size (in pairs): 133, Positive cache size: 98, Positive conditional cache size: 0, Positive unconditional cache size: 98, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 684]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 684]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 687]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 687]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 106 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 99 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 237 IncrementalHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 21 mSDtfsCounter, 237 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-14 14:02:59,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE