./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 35987657 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/36-apron_22-traces-write-centered-vs-meet-mutex_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7b8a2d8a35be535b4f8c573d98b12278b19043c6b0cec82927e2ac6d7dd36ebb --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 00:52:18,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 00:52:18,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 00:52:18,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 00:52:18,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 00:52:18,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 00:52:18,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 00:52:18,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 00:52:18,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 00:52:18,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 00:52:18,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 00:52:18,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 00:52:18,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 00:52:18,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 00:52:18,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 00:52:18,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 00:52:18,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 00:52:18,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 00:52:18,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 00:52:18,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 00:52:18,431 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 00:52:18,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 00:52:18,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 00:52:18,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 00:52:18,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 00:52:18,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 00:52:18,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 00:52:18,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 00:52:18,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 00:52:18,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 00:52:18,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 00:52:18,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 00:52:18,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 00:52:18,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 00:52:18,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 00:52:18,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 00:52:18,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 00:52:18,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 00:52:18,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 00:52:18,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 00:52:18,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 00:52:18,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 00:52:18,458 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-22 00:52:18,479 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 00:52:18,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 00:52:18,479 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 00:52:18,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 00:52:18,480 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 00:52:18,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 00:52:18,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 00:52:18,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 00:52:18,481 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 00:52:18,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 00:52:18,481 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 00:52:18,481 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 00:52:18,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 00:52:18,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 00:52:18,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 00:52:18,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 00:52:18,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 00:52:18,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 00:52:18,482 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-22 00:52:18,482 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 00:52:18,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 00:52:18,482 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 00:52:18,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 00:52:18,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 00:52:18,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 00:52:18,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 00:52:18,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:52:18,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 00:52:18,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 00:52:18,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 00:52:18,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 00:52:18,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 00:52:18,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 00:52:18,485 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b8a2d8a35be535b4f8c573d98b12278b19043c6b0cec82927e2ac6d7dd36ebb [2022-07-22 00:52:18,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 00:52:18,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 00:52:18,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 00:52:18,781 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 00:52:18,781 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 00:52:18,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2022-07-22 00:52:18,830 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1c1e2968/13b59299a70842ffb2fa6d2ae7e01305/FLAGcf3a5b045 [2022-07-22 00:52:19,216 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 00:52:19,217 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2022-07-22 00:52:19,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1c1e2968/13b59299a70842ffb2fa6d2ae7e01305/FLAGcf3a5b045 [2022-07-22 00:52:19,581 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1c1e2968/13b59299a70842ffb2fa6d2ae7e01305 [2022-07-22 00:52:19,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 00:52:19,584 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 00:52:19,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 00:52:19,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 00:52:19,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 00:52:19,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:52:19" (1/1) ... [2022-07-22 00:52:19,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@312d61b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:19, skipping insertion in model container [2022-07-22 00:52:19,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:52:19" (1/1) ... [2022-07-22 00:52:19,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 00:52:19,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 00:52:19,728 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i[1107,1120] [2022-07-22 00:52:19,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:52:19,854 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 00:52:19,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i[1107,1120] [2022-07-22 00:52:19,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:52:19,921 INFO L208 MainTranslator]: Completed translation [2022-07-22 00:52:19,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:19 WrapperNode [2022-07-22 00:52:19,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 00:52:19,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 00:52:19,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 00:52:19,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 00:52:19,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:19" (1/1) ... [2022-07-22 00:52:19,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:19" (1/1) ... [2022-07-22 00:52:19,978 INFO L137 Inliner]: procedures = 163, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 113 [2022-07-22 00:52:19,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 00:52:19,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 00:52:19,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 00:52:19,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 00:52:19,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:19" (1/1) ... [2022-07-22 00:52:19,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:19" (1/1) ... [2022-07-22 00:52:19,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:19" (1/1) ... [2022-07-22 00:52:19,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:19" (1/1) ... [2022-07-22 00:52:20,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:19" (1/1) ... [2022-07-22 00:52:20,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:19" (1/1) ... [2022-07-22 00:52:20,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:19" (1/1) ... [2022-07-22 00:52:20,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 00:52:20,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 00:52:20,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 00:52:20,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 00:52:20,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:19" (1/1) ... [2022-07-22 00:52:20,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:52:20,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:52:20,053 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) [2022-07-22 00:52:20,070 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 [2022-07-22 00:52:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 00:52:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-22 00:52:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 00:52:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 00:52:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-22 00:52:20,082 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-22 00:52:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 00:52:20,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 00:52:20,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 00:52:20,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 00:52:20,091 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-22 00:52:20,251 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 00:52:20,252 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 00:52:20,423 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 00:52:20,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 00:52:20,429 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 00:52:20,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:52:20 BoogieIcfgContainer [2022-07-22 00:52:20,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 00:52:20,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 00:52:20,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 00:52:20,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 00:52:20,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:52:19" (1/3) ... [2022-07-22 00:52:20,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbcba7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:52:20, skipping insertion in model container [2022-07-22 00:52:20,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:19" (2/3) ... [2022-07-22 00:52:20,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbcba7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:52:20, skipping insertion in model container [2022-07-22 00:52:20,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:52:20" (3/3) ... [2022-07-22 00:52:20,437 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2022-07-22 00:52:20,441 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-22 00:52:20,447 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 00:52:20,447 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-22 00:52:20,447 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-22 00:52:20,484 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-22 00:52:20,510 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-22 00:52:20,520 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 134 transitions, 273 flow [2022-07-22 00:52:20,522 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 134 transitions, 273 flow [2022-07-22 00:52:20,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 134 transitions, 273 flow [2022-07-22 00:52:20,613 INFO L129 PetriNetUnfolder]: 4/137 cut-off events. [2022-07-22 00:52:20,614 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 00:52:20,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 137 events. 4/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-07-22 00:52:20,623 INFO L116 LiptonReduction]: Number of co-enabled transitions 3364 [2022-07-22 00:52:24,895 INFO L131 LiptonReduction]: Checked pairs total: 9757 [2022-07-22 00:52:24,895 INFO L133 LiptonReduction]: Total number of compositions: 132 [2022-07-22 00:52:24,905 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 33 transitions, 71 flow [2022-07-22 00:52:24,926 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 170 states, 161 states have (on average 2.0559006211180124) internal successors, (331), 169 states have internal predecessors, (331), 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) [2022-07-22 00:52:24,941 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 00:52:24,945 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@4813ed02, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3c77c378 [2022-07-22 00:52:24,945 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-07-22 00:52:24,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 161 states have (on average 2.0559006211180124) internal successors, (331), 169 states have internal predecessors, (331), 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) [2022-07-22 00:52:24,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-22 00:52:24,949 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:52:24,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-22 00:52:24,950 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 00:52:24,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:52:24,953 INFO L85 PathProgramCache]: Analyzing trace with hash 15574927, now seen corresponding path program 1 times [2022-07-22 00:52:24,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:52:24,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840903599] [2022-07-22 00:52:24,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:52:24,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:52:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:52:25,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:52:25,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:52:25,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840903599] [2022-07-22 00:52:25,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840903599] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:52:25,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:52:25,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:52:25,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168493525] [2022-07-22 00:52:25,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:52:25,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 00:52:25,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:52:25,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 00:52:25,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 00:52:25,099 INFO L87 Difference]: Start difference. First operand has 170 states, 161 states have (on average 2.0559006211180124) internal successors, (331), 169 states have internal predecessors, (331), 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 2 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) [2022-07-22 00:52:25,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:52:25,154 INFO L93 Difference]: Finished difference Result 170 states and 315 transitions. [2022-07-22 00:52:25,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 00:52:25,157 INFO L78 Accepts]: Start accepts. Automaton has has 2 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 [2022-07-22 00:52:25,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:52:25,164 INFO L225 Difference]: With dead ends: 170 [2022-07-22 00:52:25,165 INFO L226 Difference]: Without dead ends: 160 [2022-07-22 00:52:25,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 00:52:25,169 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:52:25,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:52:25,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-07-22 00:52:25,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-07-22 00:52:25,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 152 states have (on average 1.9407894736842106) internal successors, (295), 159 states have internal predecessors, (295), 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) [2022-07-22 00:52:25,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 295 transitions. [2022-07-22 00:52:25,217 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 295 transitions. Word has length 4 [2022-07-22 00:52:25,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:52:25,218 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 295 transitions. [2022-07-22 00:52:25,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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) [2022-07-22 00:52:25,218 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 295 transitions. [2022-07-22 00:52:25,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-22 00:52:25,219 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:52:25,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-22 00:52:25,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 00:52:25,222 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 00:52:25,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:52:25,223 INFO L85 PathProgramCache]: Analyzing trace with hash 2081054789, now seen corresponding path program 1 times [2022-07-22 00:52:25,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:52:25,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771519161] [2022-07-22 00:52:25,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:52:25,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:52:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:52:25,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:52:25,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:52:25,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771519161] [2022-07-22 00:52:25,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771519161] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:52:25,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:52:25,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-22 00:52:25,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657374984] [2022-07-22 00:52:25,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:52:25,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:52:25,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:52:25,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:52:25,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:52:25,320 INFO L87 Difference]: Start difference. First operand 160 states and 295 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-07-22 00:52:25,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:52:25,364 INFO L93 Difference]: Finished difference Result 147 states and 269 transitions. [2022-07-22 00:52:25,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:52:25,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2022-07-22 00:52:25,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:52:25,365 INFO L225 Difference]: With dead ends: 147 [2022-07-22 00:52:25,367 INFO L226 Difference]: Without dead ends: 147 [2022-07-22 00:52:25,368 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 [2022-07-22 00:52:25,368 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:52:25,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:52:25,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-07-22 00:52:25,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2022-07-22 00:52:25,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 142 states have (on average 1.8943661971830985) internal successors, (269), 146 states have internal predecessors, (269), 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) [2022-07-22 00:52:25,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 269 transitions. [2022-07-22 00:52:25,387 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 269 transitions. Word has length 6 [2022-07-22 00:52:25,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:52:25,389 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 269 transitions. [2022-07-22 00:52:25,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-07-22 00:52:25,389 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 269 transitions. [2022-07-22 00:52:25,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-22 00:52:25,391 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:52:25,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-22 00:52:25,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 00:52:25,391 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 00:52:25,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:52:25,392 INFO L85 PathProgramCache]: Analyzing trace with hash 2081054814, now seen corresponding path program 1 times [2022-07-22 00:52:25,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:52:25,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639476786] [2022-07-22 00:52:25,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:52:25,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:52:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:52:25,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:52:25,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:52:25,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639476786] [2022-07-22 00:52:25,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639476786] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:52:25,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:52:25,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-22 00:52:25,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879672489] [2022-07-22 00:52:25,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:52:25,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:52:25,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:52:25,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:52:25,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:52:25,443 INFO L87 Difference]: Start difference. First operand 147 states and 269 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-07-22 00:52:25,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:52:25,473 INFO L93 Difference]: Finished difference Result 134 states and 243 transitions. [2022-07-22 00:52:25,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:52:25,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2022-07-22 00:52:25,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:52:25,474 INFO L225 Difference]: With dead ends: 134 [2022-07-22 00:52:25,475 INFO L226 Difference]: Without dead ends: 114 [2022-07-22 00:52:25,475 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 [2022-07-22 00:52:25,476 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:52:25,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 4 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:52:25,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-07-22 00:52:25,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-07-22 00:52:25,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 1.8214285714285714) internal successors, (204), 113 states have internal predecessors, (204), 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) [2022-07-22 00:52:25,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 204 transitions. [2022-07-22 00:52:25,481 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 204 transitions. Word has length 6 [2022-07-22 00:52:25,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:52:25,481 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 204 transitions. [2022-07-22 00:52:25,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-07-22 00:52:25,482 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 204 transitions. [2022-07-22 00:52:25,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 00:52:25,482 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:52:25,482 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:52:25,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 00:52:25,482 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 00:52:25,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:52:25,486 INFO L85 PathProgramCache]: Analyzing trace with hash -615938911, now seen corresponding path program 1 times [2022-07-22 00:52:25,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:52:25,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522755304] [2022-07-22 00:52:25,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:52:25,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:52:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:52:25,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:52:25,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:52:25,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522755304] [2022-07-22 00:52:25,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522755304] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:52:25,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:52:25,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:52:25,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732145537] [2022-07-22 00:52:25,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:52:25,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:52:25,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:52:25,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:52:25,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:52:25,561 INFO L87 Difference]: Start difference. First operand 114 states and 204 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) [2022-07-22 00:52:25,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:52:25,602 INFO L93 Difference]: Finished difference Result 136 states and 235 transitions. [2022-07-22 00:52:25,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 00:52:25,603 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 [2022-07-22 00:52:25,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:52:25,604 INFO L225 Difference]: With dead ends: 136 [2022-07-22 00:52:25,604 INFO L226 Difference]: Without dead ends: 94 [2022-07-22 00:52:25,604 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 [2022-07-22 00:52:25,605 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 19 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:52:25,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 30 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:52:25,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-07-22 00:52:25,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-07-22 00:52:25,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 92 states have (on average 1.7826086956521738) internal successors, (164), 93 states have internal predecessors, (164), 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) [2022-07-22 00:52:25,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 164 transitions. [2022-07-22 00:52:25,608 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 164 transitions. Word has length 8 [2022-07-22 00:52:25,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:52:25,609 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 164 transitions. [2022-07-22 00:52:25,609 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) [2022-07-22 00:52:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 164 transitions. [2022-07-22 00:52:25,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-22 00:52:25,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:52:25,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:52:25,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 00:52:25,610 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 00:52:25,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:52:25,610 INFO L85 PathProgramCache]: Analyzing trace with hash -2020474303, now seen corresponding path program 1 times [2022-07-22 00:52:25,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:52:25,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987229570] [2022-07-22 00:52:25,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:52:25,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:52:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:52:25,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:52:25,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:52:25,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987229570] [2022-07-22 00:52:25,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987229570] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:52:25,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:52:25,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:52:25,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808839652] [2022-07-22 00:52:25,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:52:25,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:52:25,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:52:25,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:52:25,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:52:25,677 INFO L87 Difference]: Start difference. First operand 94 states and 164 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-07-22 00:52:25,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:52:25,714 INFO L93 Difference]: Finished difference Result 74 states and 110 transitions. [2022-07-22 00:52:25,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:52:25,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2022-07-22 00:52:25,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:52:25,719 INFO L225 Difference]: With dead ends: 74 [2022-07-22 00:52:25,719 INFO L226 Difference]: Without dead ends: 72 [2022-07-22 00:52:25,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:52:25,720 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 18 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:52:25,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 3 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:52:25,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-07-22 00:52:25,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 66. [2022-07-22 00:52:25,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 62 states have (on average 1.6451612903225807) internal successors, (102), 65 states have internal predecessors, (102), 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) [2022-07-22 00:52:25,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 102 transitions. [2022-07-22 00:52:25,725 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 102 transitions. Word has length 12 [2022-07-22 00:52:25,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:52:25,725 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 102 transitions. [2022-07-22 00:52:25,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-07-22 00:52:25,726 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 102 transitions. [2022-07-22 00:52:25,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-22 00:52:25,726 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:52:25,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:52:25,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 00:52:25,726 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 00:52:25,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:52:25,727 INFO L85 PathProgramCache]: Analyzing trace with hash 553072016, now seen corresponding path program 1 times [2022-07-22 00:52:25,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:52:25,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852616576] [2022-07-22 00:52:25,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:52:25,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:52:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:52:25,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:52:25,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:52:25,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852616576] [2022-07-22 00:52:25,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852616576] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:52:25,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:52:25,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:52:25,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099803790] [2022-07-22 00:52:25,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:52:25,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:52:25,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:52:25,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:52:25,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:52:25,797 INFO L87 Difference]: Start difference. First operand 66 states and 102 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-07-22 00:52:25,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:52:25,833 INFO L93 Difference]: Finished difference Result 61 states and 95 transitions. [2022-07-22 00:52:25,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:52:25,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2022-07-22 00:52:25,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:52:25,835 INFO L225 Difference]: With dead ends: 61 [2022-07-22 00:52:25,835 INFO L226 Difference]: Without dead ends: 58 [2022-07-22 00:52:25,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:52:25,840 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 19 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:52:25,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 3 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:52:25,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-07-22 00:52:25,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2022-07-22 00:52:25,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 55 states have (on average 1.6363636363636365) internal successors, (90), 56 states have internal predecessors, (90), 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) [2022-07-22 00:52:25,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 90 transitions. [2022-07-22 00:52:25,850 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 90 transitions. Word has length 14 [2022-07-22 00:52:25,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:52:25,850 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 90 transitions. [2022-07-22 00:52:25,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-07-22 00:52:25,850 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 90 transitions. [2022-07-22 00:52:25,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-22 00:52:25,851 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:52:25,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:52:25,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 00:52:25,852 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 00:52:25,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:52:25,852 INFO L85 PathProgramCache]: Analyzing trace with hash -243599943, now seen corresponding path program 1 times [2022-07-22 00:52:25,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:52:25,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133846450] [2022-07-22 00:52:25,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:52:25,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:52:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:52:25,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:52:25,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:52:25,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133846450] [2022-07-22 00:52:25,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133846450] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:52:25,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:52:25,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 00:52:25,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714741102] [2022-07-22 00:52:25,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:52:25,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:52:25,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:52:25,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:52:25,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:52:25,912 INFO L87 Difference]: Start difference. First operand 57 states and 90 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-07-22 00:52:25,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:52:25,941 INFO L93 Difference]: Finished difference Result 53 states and 83 transitions. [2022-07-22 00:52:25,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:52:25,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2022-07-22 00:52:25,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:52:25,942 INFO L225 Difference]: With dead ends: 53 [2022-07-22 00:52:25,942 INFO L226 Difference]: Without dead ends: 53 [2022-07-22 00:52:25,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 00:52:25,943 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 31 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:52:25,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 10 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:52:25,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-07-22 00:52:25,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-07-22 00:52:25,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.5961538461538463) internal successors, (83), 52 states have internal predecessors, (83), 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) [2022-07-22 00:52:25,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 83 transitions. [2022-07-22 00:52:25,954 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 83 transitions. Word has length 18 [2022-07-22 00:52:25,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:52:25,954 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 83 transitions. [2022-07-22 00:52:25,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-07-22 00:52:25,954 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 83 transitions. [2022-07-22 00:52:25,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-22 00:52:25,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:52:25,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:52:25,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 00:52:25,956 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 00:52:25,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:52:25,957 INFO L85 PathProgramCache]: Analyzing trace with hash -243599997, now seen corresponding path program 1 times [2022-07-22 00:52:25,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:52:25,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089498207] [2022-07-22 00:52:25,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:52:25,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:52:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 00:52:25,992 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 00:52:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 00:52:26,038 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 00:52:26,038 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 00:52:26,039 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-07-22 00:52:26,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-07-22 00:52:26,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 7 remaining) [2022-07-22 00:52:26,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-07-22 00:52:26,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-07-22 00:52:26,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-07-22 00:52:26,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-07-22 00:52:26,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 00:52:26,046 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:52:26,052 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-22 00:52:26,052 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 00:52:26,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 12:52:26 BasicIcfg [2022-07-22 00:52:26,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 00:52:26,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 00:52:26,081 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 00:52:26,081 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 00:52:26,081 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:52:20" (3/4) ... [2022-07-22 00:52:26,082 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 00:52:26,122 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 00:52:26,122 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 00:52:26,122 INFO L158 Benchmark]: Toolchain (without parser) took 6538.75ms. Allocated memory was 58.7MB in the beginning and 107.0MB in the end (delta: 48.2MB). Free memory was 36.1MB in the beginning and 57.0MB in the end (delta: -20.9MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2022-07-22 00:52:26,123 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory was 41.0MB in the beginning and 41.0MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 00:52:26,123 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.44ms. Allocated memory is still 58.7MB. Free memory was 36.0MB in the beginning and 33.4MB in the end (delta: 2.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 00:52:26,123 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.73ms. Allocated memory is still 58.7MB. Free memory was 33.2MB in the beginning and 31.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 00:52:26,123 INFO L158 Benchmark]: Boogie Preprocessor took 40.70ms. Allocated memory is still 58.7MB. Free memory was 31.1MB in the beginning and 29.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 00:52:26,124 INFO L158 Benchmark]: RCFGBuilder took 410.58ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 29.6MB in the beginning and 43.2MB in the end (delta: -13.6MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-07-22 00:52:26,124 INFO L158 Benchmark]: TraceAbstraction took 5647.42ms. Allocated memory was 71.3MB in the beginning and 107.0MB in the end (delta: 35.7MB). Free memory was 42.9MB in the beginning and 61.2MB in the end (delta: -18.3MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2022-07-22 00:52:26,124 INFO L158 Benchmark]: Witness Printer took 41.78ms. Allocated memory is still 107.0MB. Free memory was 61.2MB in the beginning and 57.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 00:52:26,125 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory was 41.0MB in the beginning and 41.0MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.44ms. Allocated memory is still 58.7MB. Free memory was 36.0MB in the beginning and 33.4MB in the end (delta: 2.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.73ms. Allocated memory is still 58.7MB. Free memory was 33.2MB in the beginning and 31.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.70ms. Allocated memory is still 58.7MB. Free memory was 31.1MB in the beginning and 29.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 410.58ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 29.6MB in the beginning and 43.2MB in the end (delta: -13.6MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5647.42ms. Allocated memory was 71.3MB in the beginning and 107.0MB in the end (delta: 35.7MB). Free memory was 42.9MB in the beginning and 61.2MB in the end (delta: -18.3MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Witness Printer took 41.78ms. Allocated memory is still 107.0MB. Free memory was 61.2MB in the beginning and 57.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.4s, 133 PlacesBefore, 34 PlacesAfterwards, 134 TransitionsBefore, 33 TransitionsAfterwards, 3364 CoEnabledTransitionPairs, 8 FixpointIterations, 48 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 2 ChoiceCompositions, 132 TotalNumberOfCompositions, 9757 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4644, positive: 4274, positive conditional: 0, positive unconditional: 4274, negative: 370, negative conditional: 0, negative unconditional: 370, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2587, positive: 2475, positive conditional: 0, positive unconditional: 2475, negative: 112, negative conditional: 0, negative unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2587, positive: 2395, positive conditional: 0, positive unconditional: 2395, negative: 192, negative conditional: 0, negative unconditional: 192, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 192, positive: 80, positive conditional: 0, positive unconditional: 80, negative: 112, negative conditional: 0, negative unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 313, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 201, negative conditional: 0, negative unconditional: 201, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4644, positive: 1799, positive conditional: 0, positive unconditional: 1799, negative: 258, negative conditional: 0, negative unconditional: 258, unknown: 2587, unknown conditional: 0, unknown unconditional: 2587] , Statistics on independence cache: Total cache size (in pairs): 197, Positive cache size: 161, Positive conditional cache size: 0, Positive unconditional cache size: 161, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36 - 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 - CounterExampleResult [Line: 701]: integer overflow possible integer overflow possible We found a FailurePath: [L682] 0 int g = 0; [L683] 0 int h = 0; [L684] 0 int i = 0; [L685] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L686] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L687] 0 pthread_mutex_t C = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L710] 0 int x = __VERIFIER_nondet_int(); [L711] COND TRUE 0 x > -1000 [L712] 0 pthread_t id; [L713] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, id={6:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=2147483617] [L689] 1 int x = __VERIFIER_nondet_int(); [L690] 1 int y = __VERIFIER_nondet_int(); [L691] 1 int z = __VERIFIER_nondet_int(); [L692] COND TRUE 1 x < 1000 [L716] 0 i = 11 VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=11, id={6:0}, x=2147483617] [L717] 0 g = x [L718] EXPR 0 x - 17 VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=0, i=11, id={6:0}, x=2147483617] [L718] 0 h = x - 17 VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483600, i=11, id={6:0}, x=2147483617] [L721] 0 h = x VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, id={6:0}, x=2147483617] [L695] 1 x = g VAL [A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, x=2147483617, y=0, z=0] [L696] 1 y = h [L697] CALL 1 __VERIFIER_assert(y <= x) [L19] COND FALSE 1 !(!(cond)) [L697] RET 1 __VERIFIER_assert(y <= x) [L699] CALL 1 __VERIFIER_assert(x == y) [L19] COND FALSE 1 !(!(cond)) [L699] RET 1 __VERIFIER_assert(x == y) [L701] 1 x + 31 VAL [A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, x=2147483617, y=2147483617, z=0] - UnprovableResult [Line: 718]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 186 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 134 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 134 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 265 IncrementalHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 38 mSDtfsCounter, 265 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 292 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 RESULT: Ultimate proved your program to be incorrect! [2022-07-22 00:52:26,162 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)