./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.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 7e42125d78d2e647b04483b10b743ce53945c41f6200d87cdd62381d378c13a7 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:19:23,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:19:23,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:19:23,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:19:23,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:19:23,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:19:23,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:19:23,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:19:23,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:19:23,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:19:23,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:19:23,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:19:23,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:19:23,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:19:23,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:19:23,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:19:23,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:19:23,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:19:23,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:19:23,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:19:23,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:19:23,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:19:23,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:19:23,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:19:23,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:19:23,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:19:23,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:19:23,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:19:23,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:19:23,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:19:23,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:19:23,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:19:23,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:19:23,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:19:23,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:19:23,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:19:23,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:19:23,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:19:23,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:19:23,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:19:23,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:19:23,636 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:19:23,670 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:19:23,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:19:23,671 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:19:23,671 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:19:23,672 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:19:23,672 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:19:23,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:19:23,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:19:23,673 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:19:23,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:19:23,674 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:19:23,674 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:19:23,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:19:23,675 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:19:23,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:19:23,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:19:23,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:19:23,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:19:23,675 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:19:23,676 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:19:23,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:19:23,676 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:19:23,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:19:23,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:19:23,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:19:23,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:19:23,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:19:23,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:19:23,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:19:23,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:19:23,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:19:23,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:19:23,678 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:19:23,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:19:23,679 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:19:23,679 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:19:23,679 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:19:23,679 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e42125d78d2e647b04483b10b743ce53945c41f6200d87cdd62381d378c13a7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:19:23,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:19:23,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:19:23,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:19:23,995 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:19:23,995 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:19:23,996 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2023-08-30 13:19:25,136 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:19:25,667 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:19:25,667 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2023-08-30 13:19:25,709 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/226e1cd93/f6d0b62d2ee24b439f54d46577309433/FLAG42331c069 [2023-08-30 13:19:25,727 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/226e1cd93/f6d0b62d2ee24b439f54d46577309433 [2023-08-30 13:19:25,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:19:25,731 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:19:25,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:19:25,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:19:25,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:19:25,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:19:25" (1/1) ... [2023-08-30 13:19:25,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@613b8a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:19:25, skipping insertion in model container [2023-08-30 13:19:25,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:19:25" (1/1) ... [2023-08-30 13:19:25,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:19:25,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:19:26,102 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i[5469,5482] [2023-08-30 13:19:28,479 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 13:19:29,017 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 13:19:29,018 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 13:19:29,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:19:29,106 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:19:29,119 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i[5469,5482] [2023-08-30 13:19:29,397 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 13:19:29,445 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 13:19:29,445 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 13:19:29,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:19:29,967 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:19:29,967 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:19:29,968 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:19:29,968 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:19:29,968 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:19:29,969 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:19:29,969 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:19:29,975 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:19:29,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:19:29 WrapperNode [2023-08-30 13:19:29,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:19:29,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:19:29,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:19:29,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:19:29,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:19:29" (1/1) ... [2023-08-30 13:19:30,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:19:29" (1/1) ... [2023-08-30 13:19:30,175 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 58, statements flattened = 825 [2023-08-30 13:19:30,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:19:30,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:19:30,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:19:30,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:19:30,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:19:29" (1/1) ... [2023-08-30 13:19:30,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:19:29" (1/1) ... [2023-08-30 13:19:30,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:19:29" (1/1) ... [2023-08-30 13:19:30,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:19:29" (1/1) ... [2023-08-30 13:19:30,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:19:29" (1/1) ... [2023-08-30 13:19:30,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:19:29" (1/1) ... [2023-08-30 13:19:30,264 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:19:29" (1/1) ... [2023-08-30 13:19:30,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:19:29" (1/1) ... [2023-08-30 13:19:30,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:19:30,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:19:30,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:19:30,296 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:19:30,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:19:29" (1/1) ... [2023-08-30 13:19:30,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:19:30,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:19:30,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 13:19:30,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 13:19:30,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 13:19:30,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 13:19:30,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:19:30,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 13:19:30,364 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-08-30 13:19:30,364 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-08-30 13:19:30,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:19:30,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:19:30,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 13:19:30,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:19:30,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 13:19:30,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:19:30,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:19:30,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 13:19:30,366 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-08-30 13:19:30,367 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-08-30 13:19:30,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:19:30,369 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 13:19:30,816 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:19:30,818 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:19:31,686 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:19:31,696 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:19:31,697 INFO L302 CfgBuilder]: Removed 31 assume(true) statements. [2023-08-30 13:19:31,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:19:31 BoogieIcfgContainer [2023-08-30 13:19:31,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:19:31,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:19:31,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:19:31,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:19:31,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:19:25" (1/3) ... [2023-08-30 13:19:31,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7d8184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:19:31, skipping insertion in model container [2023-08-30 13:19:31,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:19:29" (2/3) ... [2023-08-30 13:19:31,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7d8184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:19:31, skipping insertion in model container [2023-08-30 13:19:31,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:19:31" (3/3) ... [2023-08-30 13:19:31,707 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2023-08-30 13:19:31,713 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:19:31,721 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:19:31,722 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-08-30 13:19:31,722 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:19:31,856 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 13:19:31,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 877 places, 935 transitions, 1886 flow [2023-08-30 13:19:32,141 INFO L130 PetriNetUnfolder]: 65/933 cut-off events. [2023-08-30 13:19:32,141 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 13:19:32,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 942 conditions, 933 events. 65/933 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1741 event pairs, 0 based on Foata normal form. 0/834 useless extension candidates. Maximal degree in co-relation 766. Up to 9 conditions per place. [2023-08-30 13:19:32,152 INFO L82 GeneralOperation]: Start removeDead. Operand has 877 places, 935 transitions, 1886 flow [2023-08-30 13:19:32,162 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 867 places, 925 transitions, 1859 flow [2023-08-30 13:19:32,165 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:19:32,172 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 867 places, 925 transitions, 1859 flow [2023-08-30 13:19:32,174 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 867 places, 925 transitions, 1859 flow [2023-08-30 13:19:32,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 867 places, 925 transitions, 1859 flow [2023-08-30 13:19:32,353 INFO L130 PetriNetUnfolder]: 65/925 cut-off events. [2023-08-30 13:19:32,354 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 13:19:32,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 933 conditions, 925 events. 65/925 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1560 event pairs, 0 based on Foata normal form. 0/826 useless extension candidates. Maximal degree in co-relation 766. Up to 9 conditions per place. [2023-08-30 13:19:32,376 INFO L119 LiptonReduction]: Number of co-enabled transitions 41294 [2023-08-30 13:20:44,273 WARN L222 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 331 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:20:50,700 WARN L222 SmtUtils]: Spent 6.42s on a formula simplification that was a NOOP. DAG size: 285 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:20:58,624 WARN L222 SmtUtils]: Spent 7.92s on a formula simplification that was a NOOP. DAG size: 334 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:21:05,422 WARN L222 SmtUtils]: Spent 6.79s on a formula simplification that was a NOOP. DAG size: 288 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:21:48,130 WARN L222 SmtUtils]: Spent 38.15s on a formula simplification. DAG size of input: 627 DAG size of output: 625 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:22:05,711 WARN L222 SmtUtils]: Spent 17.57s on a formula simplification that was a NOOP. DAG size: 581 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:24:18,081 WARN L222 SmtUtils]: Spent 2.21m on a formula simplification. DAG size of input: 630 DAG size of output: 628 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:25:26,275 WARN L222 SmtUtils]: Spent 1.14m on a formula simplification that was a NOOP. DAG size: 584 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:25:35,622 INFO L134 LiptonReduction]: Checked pairs total: 36461 [2023-08-30 13:25:35,622 INFO L136 LiptonReduction]: Total number of compositions: 1105 [2023-08-30 13:25:35,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:25:35,638 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@bc7e4cb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:25:35,638 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2023-08-30 13:25:35,647 INFO L130 PetriNetUnfolder]: 2/5 cut-off events. [2023-08-30 13:25:35,648 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:25:35,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:25:35,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 13:25:35,649 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2023-08-30 13:25:35,653 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:25:35,653 INFO L85 PathProgramCache]: Analyzing trace with hash 3554459, now seen corresponding path program 1 times [2023-08-30 13:25:35,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:25:35,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482345942] [2023-08-30 13:25:35,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:25:35,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:25:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:25:36,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:25:36,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:25:36,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482345942] [2023-08-30 13:25:36,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482345942] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:25:36,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:25:36,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:25:36,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471488660] [2023-08-30 13:25:36,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:25:36,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 13:25:36,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:25:36,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 13:25:36,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 13:25:36,235 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 877 out of 2040 [2023-08-30 13:25:36,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 95 transitions, 199 flow. Second operand has 2 states, 2 states have (on average 878.5) internal successors, (1757), 2 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:36,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:25:36,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 877 of 2040 [2023-08-30 13:25:36,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:25:36,674 INFO L130 PetriNetUnfolder]: 511/914 cut-off events. [2023-08-30 13:25:36,675 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2023-08-30 13:25:36,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1872 conditions, 914 events. 511/914 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3904 event pairs, 501 based on Foata normal form. 0/677 useless extension candidates. Maximal degree in co-relation 1692. Up to 915 conditions per place. [2023-08-30 13:25:36,683 INFO L137 encePairwiseOnDemand]: 2000/2040 looper letters, 55 selfloop transitions, 0 changer transitions 0/55 dead transitions. [2023-08-30 13:25:36,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 55 transitions, 229 flow [2023-08-30 13:25:36,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 13:25:36,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 13:25:36,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1849 transitions. [2023-08-30 13:25:36,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4531862745098039 [2023-08-30 13:25:36,707 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1849 transitions. [2023-08-30 13:25:36,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1849 transitions. [2023-08-30 13:25:36,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:25:36,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1849 transitions. [2023-08-30 13:25:36,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 924.5) internal successors, (1849), 2 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:36,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2040.0) internal successors, (6120), 3 states have internal predecessors, (6120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:36,743 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2040.0) internal successors, (6120), 3 states have internal predecessors, (6120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:36,745 INFO L175 Difference]: Start difference. First operand has 75 places, 95 transitions, 199 flow. Second operand 2 states and 1849 transitions. [2023-08-30 13:25:36,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 55 transitions, 229 flow [2023-08-30 13:25:36,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 55 transitions, 224 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 13:25:36,752 INFO L231 Difference]: Finished difference. Result has 50 places, 55 transitions, 114 flow [2023-08-30 13:25:36,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2040, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=114, PETRI_PLACES=50, PETRI_TRANSITIONS=55} [2023-08-30 13:25:36,757 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -25 predicate places. [2023-08-30 13:25:36,757 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 55 transitions, 114 flow [2023-08-30 13:25:36,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 878.5) internal successors, (1757), 2 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:36,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:25:36,759 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:25:36,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:25:36,760 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_setErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2023-08-30 13:25:36,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:25:36,762 INFO L85 PathProgramCache]: Analyzing trace with hash -878240470, now seen corresponding path program 1 times [2023-08-30 13:25:36,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:25:36,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369416270] [2023-08-30 13:25:36,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:25:36,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:25:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:25:37,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:25:37,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:25:37,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369416270] [2023-08-30 13:25:37,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369416270] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:25:37,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:25:37,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:25:37,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944764908] [2023-08-30 13:25:37,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:25:37,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:25:37,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:25:37,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:25:37,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:25:37,478 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 869 out of 2040 [2023-08-30 13:25:37,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 55 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 870.6666666666666) internal successors, (2612), 3 states have internal predecessors, (2612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:37,481 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:25:37,481 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 869 of 2040 [2023-08-30 13:25:37,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:25:37,933 INFO L130 PetriNetUnfolder]: 511/915 cut-off events. [2023-08-30 13:25:37,933 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 13:25:37,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1858 conditions, 915 events. 511/915 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3887 event pairs, 501 based on Foata normal form. 0/678 useless extension candidates. Maximal degree in co-relation 1855. Up to 915 conditions per place. [2023-08-30 13:25:37,937 INFO L137 encePairwiseOnDemand]: 2036/2040 looper letters, 54 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2023-08-30 13:25:37,937 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 56 transitions, 228 flow [2023-08-30 13:25:37,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:25:37,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:25:37,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2665 transitions. [2023-08-30 13:25:37,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4354575163398693 [2023-08-30 13:25:37,945 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2665 transitions. [2023-08-30 13:25:37,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2665 transitions. [2023-08-30 13:25:37,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:25:37,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2665 transitions. [2023-08-30 13:25:37,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 888.3333333333334) internal successors, (2665), 3 states have internal predecessors, (2665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:37,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2040.0) internal successors, (8160), 4 states have internal predecessors, (8160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:37,969 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2040.0) internal successors, (8160), 4 states have internal predecessors, (8160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:37,969 INFO L175 Difference]: Start difference. First operand has 50 places, 55 transitions, 114 flow. Second operand 3 states and 2665 transitions. [2023-08-30 13:25:37,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 56 transitions, 228 flow [2023-08-30 13:25:37,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 56 transitions, 228 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 13:25:37,972 INFO L231 Difference]: Finished difference. Result has 53 places, 56 transitions, 128 flow [2023-08-30 13:25:37,972 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2040, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=53, PETRI_TRANSITIONS=56} [2023-08-30 13:25:37,974 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -22 predicate places. [2023-08-30 13:25:37,975 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 56 transitions, 128 flow [2023-08-30 13:25:37,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 870.6666666666666) internal successors, (2612), 3 states have internal predecessors, (2612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:37,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:25:37,978 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 13:25:37,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:25:37,979 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_setErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2023-08-30 13:25:37,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:25:37,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1621170043, now seen corresponding path program 1 times [2023-08-30 13:25:37,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:25:37,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220519044] [2023-08-30 13:25:37,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:25:37,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:25:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:25:38,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:25:38,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:25:38,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220519044] [2023-08-30 13:25:38,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220519044] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:25:38,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839231537] [2023-08-30 13:25:38,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:25:38,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:25:38,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:25:38,953 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 13:25:38,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 13:25:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:25:39,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-30 13:25:39,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:25:39,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:25:39,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:25:40,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:25:40,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839231537] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:25:40,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:25:40,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-30 13:25:40,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271383191] [2023-08-30 13:25:40,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:25:40,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:25:40,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:25:40,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:25:40,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:25:40,324 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 865 out of 2040 [2023-08-30 13:25:40,331 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 56 transitions, 128 flow. Second operand has 7 states, 7 states have (on average 866.5714285714286) internal successors, (6066), 7 states have internal predecessors, (6066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:40,332 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:25:40,332 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 865 of 2040 [2023-08-30 13:25:40,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:25:41,128 INFO L130 PetriNetUnfolder]: 511/920 cut-off events. [2023-08-30 13:25:41,128 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 13:25:41,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1879 conditions, 920 events. 511/920 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3918 event pairs, 501 based on Foata normal form. 0/683 useless extension candidates. Maximal degree in co-relation 1874. Up to 910 conditions per place. [2023-08-30 13:25:41,133 INFO L137 encePairwiseOnDemand]: 2032/2040 looper letters, 49 selfloop transitions, 12 changer transitions 0/61 dead transitions. [2023-08-30 13:25:41,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 61 transitions, 266 flow [2023-08-30 13:25:41,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:25:41,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:25:41,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6126 transitions. [2023-08-30 13:25:41,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42899159663865544 [2023-08-30 13:25:41,147 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 6126 transitions. [2023-08-30 13:25:41,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 6126 transitions. [2023-08-30 13:25:41,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:25:41,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 6126 transitions. [2023-08-30 13:25:41,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 875.1428571428571) internal successors, (6126), 7 states have internal predecessors, (6126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:41,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 2040.0) internal successors, (16320), 8 states have internal predecessors, (16320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:41,190 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 2040.0) internal successors, (16320), 8 states have internal predecessors, (16320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:41,190 INFO L175 Difference]: Start difference. First operand has 53 places, 56 transitions, 128 flow. Second operand 7 states and 6126 transitions. [2023-08-30 13:25:41,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 61 transitions, 266 flow [2023-08-30 13:25:41,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 61 transitions, 262 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 13:25:41,192 INFO L231 Difference]: Finished difference. Result has 58 places, 61 transitions, 168 flow [2023-08-30 13:25:41,193 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2040, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=168, PETRI_PLACES=58, PETRI_TRANSITIONS=61} [2023-08-30 13:25:41,193 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -17 predicate places. [2023-08-30 13:25:41,194 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 61 transitions, 168 flow [2023-08-30 13:25:41,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 866.5714285714286) internal successors, (6066), 7 states have internal predecessors, (6066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:41,196 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:25:41,196 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-08-30 13:25:41,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-30 13:25:41,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:25:41,407 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2023-08-30 13:25:41,407 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:25:41,407 INFO L85 PathProgramCache]: Analyzing trace with hash -521364502, now seen corresponding path program 2 times [2023-08-30 13:25:41,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:25:41,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920567261] [2023-08-30 13:25:41,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:25:41,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:25:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:25:42,335 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:25:42,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:25:42,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920567261] [2023-08-30 13:25:42,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920567261] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:25:42,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601504140] [2023-08-30 13:25:42,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 13:25:42,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:25:42,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:25:42,341 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 13:25:42,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 13:25:43,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-30 13:25:43,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 13:25:43,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-30 13:25:43,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:25:43,682 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:25:43,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:25:44,005 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:25:44,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601504140] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:25:44,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:25:44,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-30 13:25:44,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642161475] [2023-08-30 13:25:44,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:25:44,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 13:25:44,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:25:44,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 13:25:44,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2023-08-30 13:25:44,360 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 863 out of 2040 [2023-08-30 13:25:44,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 61 transitions, 168 flow. Second operand has 17 states, 17 states have (on average 864.2352941176471) internal successors, (14692), 17 states have internal predecessors, (14692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:44,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:25:44,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 863 of 2040 [2023-08-30 13:25:44,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:25:47,534 INFO L130 PetriNetUnfolder]: 511/929 cut-off events. [2023-08-30 13:25:47,535 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 13:25:47,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1924 conditions, 929 events. 511/929 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3966 event pairs, 501 based on Foata normal form. 0/693 useless extension candidates. Maximal degree in co-relation 1919. Up to 915 conditions per place. [2023-08-30 13:25:47,539 INFO L137 encePairwiseOnDemand]: 2032/2040 looper letters, 53 selfloop transitions, 17 changer transitions 0/70 dead transitions. [2023-08-30 13:25:47,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 70 transitions, 356 flow [2023-08-30 13:25:47,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:25:47,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:25:47,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 10444 transitions. [2023-08-30 13:25:47,565 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42663398692810456 [2023-08-30 13:25:47,566 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 10444 transitions. [2023-08-30 13:25:47,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 10444 transitions. [2023-08-30 13:25:47,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:25:47,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 10444 transitions. [2023-08-30 13:25:47,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 870.3333333333334) internal successors, (10444), 12 states have internal predecessors, (10444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:47,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 2040.0) internal successors, (26520), 13 states have internal predecessors, (26520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:47,658 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 2040.0) internal successors, (26520), 13 states have internal predecessors, (26520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:47,658 INFO L175 Difference]: Start difference. First operand has 58 places, 61 transitions, 168 flow. Second operand 12 states and 10444 transitions. [2023-08-30 13:25:47,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 70 transitions, 356 flow [2023-08-30 13:25:47,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 70 transitions, 321 flow, removed 13 selfloop flow, removed 3 redundant places. [2023-08-30 13:25:47,662 INFO L231 Difference]: Finished difference. Result has 72 places, 70 transitions, 277 flow [2023-08-30 13:25:47,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2040, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=277, PETRI_PLACES=72, PETRI_TRANSITIONS=70} [2023-08-30 13:25:47,665 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -3 predicate places. [2023-08-30 13:25:47,665 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 70 transitions, 277 flow [2023-08-30 13:25:47,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 864.2352941176471) internal successors, (14692), 17 states have internal predecessors, (14692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:25:47,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:25:47,669 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1] [2023-08-30 13:25:47,683 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-30 13:25:47,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-30 13:25:47,881 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2023-08-30 13:25:47,882 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:25:47,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1742521866, now seen corresponding path program 3 times [2023-08-30 13:25:47,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:25:47,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201973203] [2023-08-30 13:25:47,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:25:47,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:25:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:25:49,501 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:25:49,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:25:49,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201973203] [2023-08-30 13:25:49,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201973203] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:25:49,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336014763] [2023-08-30 13:25:49,502 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-30 13:25:49,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:25:49,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:25:49,503 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 13:25:49,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-30 13:26:09,258 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-08-30 13:26:09,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 13:26:09,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 35 conjunts are in the unsatisfiable core [2023-08-30 13:26:09,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:26:09,551 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:26:09,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:26:10,765 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:26:10,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336014763] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:26:10,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:26:10,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2023-08-30 13:26:10,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091840482] [2023-08-30 13:26:10,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:26:10,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-08-30 13:26:10,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:26:10,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-08-30 13:26:10,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=871, Unknown=0, NotChecked=0, Total=1190 [2023-08-30 13:26:15,063 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 863 out of 2040 [2023-08-30 13:26:15,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 70 transitions, 277 flow. Second operand has 35 states, 35 states have (on average 864.1142857142858) internal successors, (30244), 35 states have internal predecessors, (30244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:26:15,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:26:15,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 863 of 2040 [2023-08-30 13:26:15,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:26:35,646 WARN L222 SmtUtils]: Spent 11.46s on a formula simplification. DAG size of input: 67 DAG size of output: 47 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 13:26:49,887 WARN L222 SmtUtils]: Spent 8.26s on a formula simplification. DAG size of input: 61 DAG size of output: 43 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 13:27:13,844 INFO L130 PetriNetUnfolder]: 511/947 cut-off events. [2023-08-30 13:27:13,844 INFO L131 PetriNetUnfolder]: For 214/214 co-relation queries the response was YES. [2023-08-30 13:27:13,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2031 conditions, 947 events. 511/947 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4037 event pairs, 501 based on Foata normal form. 18/731 useless extension candidates. Maximal degree in co-relation 2020. Up to 910 conditions per place. [2023-08-30 13:27:13,849 INFO L137 encePairwiseOnDemand]: 2032/2040 looper letters, 49 selfloop transitions, 39 changer transitions 0/88 dead transitions. [2023-08-30 13:27:13,850 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 88 transitions, 561 flow [2023-08-30 13:27:13,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-08-30 13:27:13,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-08-30 13:27:13,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 21699 transitions. [2023-08-30 13:27:13,887 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4254705882352941 [2023-08-30 13:27:13,888 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 21699 transitions. [2023-08-30 13:27:13,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 21699 transitions. [2023-08-30 13:27:13,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:27:13,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 21699 transitions. [2023-08-30 13:27:13,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 867.96) internal successors, (21699), 25 states have internal predecessors, (21699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:27:14,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 2040.0) internal successors, (53040), 26 states have internal predecessors, (53040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:27:14,047 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 2040.0) internal successors, (53040), 26 states have internal predecessors, (53040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:27:14,048 INFO L175 Difference]: Start difference. First operand has 72 places, 70 transitions, 277 flow. Second operand 25 states and 21699 transitions. [2023-08-30 13:27:14,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 88 transitions, 561 flow [2023-08-30 13:27:14,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 88 transitions, 537 flow, removed 10 selfloop flow, removed 2 redundant places. [2023-08-30 13:27:14,056 INFO L231 Difference]: Finished difference. Result has 94 places, 88 transitions, 443 flow [2023-08-30 13:27:14,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2040, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=443, PETRI_PLACES=94, PETRI_TRANSITIONS=88} [2023-08-30 13:27:14,059 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, 19 predicate places. [2023-08-30 13:27:14,059 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 88 transitions, 443 flow [2023-08-30 13:27:14,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 864.1142857142858) internal successors, (30244), 35 states have internal predecessors, (30244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:27:14,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:27:14,064 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1] [2023-08-30 13:27:14,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-30 13:27:14,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:27:14,282 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2023-08-30 13:27:14,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:27:14,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1269748298, now seen corresponding path program 4 times [2023-08-30 13:27:14,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:27:14,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166222969] [2023-08-30 13:27:14,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:27:14,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:27:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:27:16,364 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:27:16,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:27:16,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166222969] [2023-08-30 13:27:16,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166222969] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:27:16,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807525598] [2023-08-30 13:27:16,364 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-30 13:27:16,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:27:16,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:27:16,369 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 13:27:16,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-30 13:27:19,664 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-30 13:27:19,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 13:27:19,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 1424 conjuncts, 51 conjunts are in the unsatisfiable core [2023-08-30 13:27:19,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:27:20,380 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:27:20,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:27:22,187 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:27:22,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807525598] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:27:22,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:27:22,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 70 [2023-08-30 13:27:22,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578427578] [2023-08-30 13:27:22,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:27:22,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-08-30 13:27:22,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:27:22,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-08-30 13:27:22,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1233, Invalid=3737, Unknown=0, NotChecked=0, Total=4970 [2023-08-30 13:27:29,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 863 out of 2040 [2023-08-30 13:27:29,265 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 88 transitions, 443 flow. Second operand has 71 states, 71 states have (on average 864.056338028169) internal successors, (61348), 71 states have internal predecessors, (61348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:27:29,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:27:29,265 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 863 of 2040 [2023-08-30 13:27:29,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:27:38,479 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296) .cse0) (< (mod (+ 19 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296) .cse0) (< (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0))) is different from false [2023-08-30 13:29:37,089 WARN L222 SmtUtils]: Spent 1.04m on a formula simplification that was a NOOP. DAG size: 91 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 13:29:38,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 13:29:40,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 13:29:42,571 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296) .cse0) (< (mod (+ 19 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296) .cse0) (< (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0))) is different from false [2023-08-30 13:29:44,664 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296) .cse0) (< (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0))) is different from false [2023-08-30 13:29:46,772 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296) .cse0) (< (mod (+ 19 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296) .cse0) (< (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0))) is different from false [2023-08-30 13:29:48,856 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296) .cse0) (< (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0))) is different from false [2023-08-30 13:31:07,146 WARN L222 SmtUtils]: Spent 26.40s on a formula simplification that was a NOOP. DAG size: 75 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 13:31:09,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 13:31:11,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 13:32:17,409 WARN L222 SmtUtils]: Spent 25.57s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 13:32:19,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 13:32:21,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 13:33:13,338 WARN L222 SmtUtils]: Spent 24.04s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 13:33:15,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15