./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 AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-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 AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 09:06:50,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 09:06:50,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 09:06:50,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 09:06:50,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 09:06:50,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 09:06:50,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 09:06:50,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 09:06:50,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 09:06:50,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 09:06:50,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 09:06:50,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 09:06:50,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 09:06:50,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 09:06:50,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 09:06:50,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 09:06:50,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 09:06:50,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 09:06:50,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 09:06:50,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 09:06:50,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 09:06:50,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 09:06:50,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 09:06:50,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 09:06:50,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 09:06:50,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 09:06:50,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 09:06:50,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 09:06:50,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 09:06:50,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 09:06:50,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 09:06:50,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 09:06:50,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 09:06:50,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 09:06:50,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 09:06:50,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 09:06:50,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 09:06:50,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 09:06:50,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 09:06:50,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 09:06:50,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 09:06:50,620 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 09:06:50,653 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 09:06:50,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 09:06:50,654 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 09:06:50,655 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 09:06:50,655 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 09:06:50,655 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 09:06:50,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 09:06:50,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 09:06:50,656 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 09:06:50,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 09:06:50,657 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 09:06:50,657 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 09:06:50,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 09:06:50,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 09:06:50,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 09:06:50,658 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 09:06:50,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 09:06:50,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 09:06:50,658 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 09:06:50,658 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 09:06:50,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 09:06:50,658 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 09:06:50,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 09:06:50,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 09:06:50,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 09:06:50,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 09:06:50,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:06:50,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 09:06:50,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 09:06:50,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 09:06:50,660 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 09:06:50,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 09:06:50,660 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 09:06:50,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 09:06:50,660 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 09:06:50,660 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 09:06:50,660 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 09:06:50,661 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e42125d78d2e647b04483b10b743ce53945c41f6200d87cdd62381d378c13a7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 09:06:50,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 09:06:51,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 09:06:51,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 09:06:51,018 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 09:06:51,018 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 09:06:51,019 INFO L432 ainManager$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 09:06:52,115 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 09:06:52,549 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 09:06:52,550 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 09:06:52,602 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8acc6696/339f781d420f49d39d9fafc90ecf78a9/FLAG49d74a6c6 [2023-08-30 09:06:52,623 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8acc6696/339f781d420f49d39d9fafc90ecf78a9 [2023-08-30 09:06:52,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 09:06:52,627 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 09:06:52,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 09:06:52,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 09:06:52,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 09:06:52,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:06:52" (1/1) ... [2023-08-30 09:06:52,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dd8c766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:06:52, skipping insertion in model container [2023-08-30 09:06:52,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:06:52" (1/1) ... [2023-08-30 09:06:52,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 09:06:52,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 09:06:53,028 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 09:06:55,587 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 09:06:55,983 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:06:55,984 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:06:56,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:06:56,054 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 09:06:56,077 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 09:06:56,213 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 09:06:56,275 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:06:56,275 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:06:56,285 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:06:56,836 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:06:56,842 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:06:56,842 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:06:56,842 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:06:56,843 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:06:56,843 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:06:56,843 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:06:56,848 INFO L208 MainTranslator]: Completed translation [2023-08-30 09:06:56,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:06:56 WrapperNode [2023-08-30 09:06:56,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 09:06:56,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 09:06:56,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 09:06:56,849 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 09:06:56,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:06:56" (1/1) ... [2023-08-30 09:06:56,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:06:56" (1/1) ... [2023-08-30 09:06:56,987 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 58, statements flattened = 825 [2023-08-30 09:06:56,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 09:06:56,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 09:06:56,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 09:06:56,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 09:06:56,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:06:56" (1/1) ... [2023-08-30 09:06:56,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:06:56" (1/1) ... [2023-08-30 09:06:57,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:06:56" (1/1) ... [2023-08-30 09:06:57,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:06:56" (1/1) ... [2023-08-30 09:06:57,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:06:56" (1/1) ... [2023-08-30 09:06:57,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:06:56" (1/1) ... [2023-08-30 09:06:57,037 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:06:56" (1/1) ... [2023-08-30 09:06:57,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:06:56" (1/1) ... [2023-08-30 09:06:57,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 09:06:57,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 09:06:57,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 09:06:57,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 09:06:57,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:06:56" (1/1) ... [2023-08-30 09:06:57,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:06:57,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:06:57,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 09:06:57,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 09:06:57,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 09:06:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 09:06:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 09:06:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 09:06:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-08-30 09:06:57,140 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-08-30 09:06:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 09:06:57,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 09:06:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 09:06:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 09:06:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 09:06:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 09:06:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 09:06:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 09:06:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-08-30 09:06:57,143 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-08-30 09:06:57,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 09:06:57,145 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 09:06:57,536 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 09:06:57,544 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 09:06:58,393 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 09:06:58,406 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 09:06:58,406 INFO L302 CfgBuilder]: Removed 31 assume(true) statements. [2023-08-30 09:06:58,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:06:58 BoogieIcfgContainer [2023-08-30 09:06:58,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 09:06:58,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 09:06:58,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 09:06:58,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 09:06:58,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 09:06:52" (1/3) ... [2023-08-30 09:06:58,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee61919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:06:58, skipping insertion in model container [2023-08-30 09:06:58,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:06:56" (2/3) ... [2023-08-30 09:06:58,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee61919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:06:58, skipping insertion in model container [2023-08-30 09:06:58,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:06:58" (3/3) ... [2023-08-30 09:06:58,415 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2023-08-30 09:06:58,420 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 09:06:58,427 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 09:06:58,427 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-08-30 09:06:58,427 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 09:06:58,537 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 09:06:58,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 877 places, 935 transitions, 1886 flow [2023-08-30 09:06:58,780 INFO L130 PetriNetUnfolder]: 65/933 cut-off events. [2023-08-30 09:06:58,781 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 09:06:58,789 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 09:06:58,789 INFO L82 GeneralOperation]: Start removeDead. Operand has 877 places, 935 transitions, 1886 flow [2023-08-30 09:06:58,797 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 867 places, 925 transitions, 1859 flow [2023-08-30 09:06:58,800 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 09:06:58,805 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 867 places, 925 transitions, 1859 flow [2023-08-30 09:06:58,807 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 867 places, 925 transitions, 1859 flow [2023-08-30 09:06:58,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 867 places, 925 transitions, 1859 flow [2023-08-30 09:06:58,932 INFO L130 PetriNetUnfolder]: 65/925 cut-off events. [2023-08-30 09:06:58,933 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 09:06:58,935 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 09:06:58,948 INFO L119 LiptonReduction]: Number of co-enabled transitions 41294 [2023-08-30 09:08:07,848 WARN L222 SmtUtils]: Spent 8.77s 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 09:08:15,867 WARN L222 SmtUtils]: Spent 8.01s 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 09:08:24,039 WARN L222 SmtUtils]: Spent 8.17s 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 09:08:31,649 WARN L222 SmtUtils]: Spent 7.61s 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 09:09:18,705 WARN L222 SmtUtils]: Spent 42.60s 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 09:09:37,845 WARN L222 SmtUtils]: Spent 19.13s 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 09:11:59,523 WARN L222 SmtUtils]: Spent 2.36m 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 09:13:07,426 WARN L222 SmtUtils]: Spent 1.13m 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 09:13:19,872 INFO L134 LiptonReduction]: Checked pairs total: 36461 [2023-08-30 09:13:19,872 INFO L136 LiptonReduction]: Total number of compositions: 1105 [2023-08-30 09:13:19,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 09:13:19,889 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;@4e33aa32, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:13:19,889 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2023-08-30 09:13:19,895 INFO L130 PetriNetUnfolder]: 2/5 cut-off events. [2023-08-30 09:13:19,895 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:13:19,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:13:19,896 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 09:13:19,897 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 09:13:19,901 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:13:19,901 INFO L85 PathProgramCache]: Analyzing trace with hash 3554459, now seen corresponding path program 1 times [2023-08-30 09:13:19,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:13:19,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405831325] [2023-08-30 09:13:19,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:13:19,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:13:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:13:20,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:13:20,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:13:20,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405831325] [2023-08-30 09:13:20,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405831325] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:13:20,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:13:20,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:13:20,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178661295] [2023-08-30 09:13:20,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:13:20,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 09:13:20,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:13:20,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 09:13:20,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 09:13:20,368 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 877 out of 2040 [2023-08-30 09:13:20,373 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 09:13:20,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:13:20,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 877 of 2040 [2023-08-30 09:13:20,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:13:20,808 INFO L130 PetriNetUnfolder]: 511/914 cut-off events. [2023-08-30 09:13:20,809 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2023-08-30 09:13:20,810 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 09:13:20,814 INFO L137 encePairwiseOnDemand]: 2000/2040 looper letters, 55 selfloop transitions, 0 changer transitions 0/55 dead transitions. [2023-08-30 09:13:20,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 55 transitions, 229 flow [2023-08-30 09:13:20,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 09:13:20,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 09:13:20,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1849 transitions. [2023-08-30 09:13:20,831 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4531862745098039 [2023-08-30 09:13:20,832 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1849 transitions. [2023-08-30 09:13:20,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1849 transitions. [2023-08-30 09:13:20,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:13:20,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1849 transitions. [2023-08-30 09:13:20,846 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 09:13:20,855 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 09:13:20,857 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 09:13:20,858 INFO L175 Difference]: Start difference. First operand has 75 places, 95 transitions, 199 flow. Second operand 2 states and 1849 transitions. [2023-08-30 09:13:20,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 55 transitions, 229 flow [2023-08-30 09:13:20,862 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 09:13:20,864 INFO L231 Difference]: Finished difference. Result has 50 places, 55 transitions, 114 flow [2023-08-30 09:13:20,865 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 09:13:20,867 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -25 predicate places. [2023-08-30 09:13:20,867 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 55 transitions, 114 flow [2023-08-30 09:13:20,869 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 09:13:20,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:13:20,869 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 09:13:20,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 09:13:20,869 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 09:13:20,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:13:20,870 INFO L85 PathProgramCache]: Analyzing trace with hash -878240470, now seen corresponding path program 1 times [2023-08-30 09:13:20,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:13:20,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141327940] [2023-08-30 09:13:20,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:13:20,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:13:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:13:21,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:13:21,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:13:21,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141327940] [2023-08-30 09:13:21,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141327940] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:13:21,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:13:21,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 09:13:21,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895134526] [2023-08-30 09:13:21,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:13:21,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:13:21,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:13:21,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:13:21,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:13:21,329 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 869 out of 2040 [2023-08-30 09:13:21,332 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 09:13:21,332 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:13:21,332 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 869 of 2040 [2023-08-30 09:13:21,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:13:21,615 INFO L130 PetriNetUnfolder]: 511/915 cut-off events. [2023-08-30 09:13:21,615 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 09:13:21,616 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 09:13:21,618 INFO L137 encePairwiseOnDemand]: 2036/2040 looper letters, 54 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2023-08-30 09:13:21,618 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 56 transitions, 228 flow [2023-08-30 09:13:21,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:13:21,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:13:21,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2665 transitions. [2023-08-30 09:13:21,623 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4354575163398693 [2023-08-30 09:13:21,623 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2665 transitions. [2023-08-30 09:13:21,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2665 transitions. [2023-08-30 09:13:21,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:13:21,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2665 transitions. [2023-08-30 09:13:21,628 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 09:13:21,635 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 09:13:21,638 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 09:13:21,638 INFO L175 Difference]: Start difference. First operand has 50 places, 55 transitions, 114 flow. Second operand 3 states and 2665 transitions. [2023-08-30 09:13:21,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 56 transitions, 228 flow [2023-08-30 09:13:21,638 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 09:13:21,639 INFO L231 Difference]: Finished difference. Result has 53 places, 56 transitions, 128 flow [2023-08-30 09:13:21,639 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 09:13:21,640 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -22 predicate places. [2023-08-30 09:13:21,640 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 56 transitions, 128 flow [2023-08-30 09:13:21,642 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 09:13:21,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:13:21,642 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 09:13:21,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 09:13:21,642 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 09:13:21,642 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:13:21,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1621170043, now seen corresponding path program 1 times [2023-08-30 09:13:21,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:13:21,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84660834] [2023-08-30 09:13:21,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:13:21,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:13:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:13:22,177 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 09:13:22,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:13:22,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84660834] [2023-08-30 09:13:22,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84660834] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:13:22,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304732622] [2023-08-30 09:13:22,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:13:22,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:13:22,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:13:22,181 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 09:13:22,207 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 09:13:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:13:22,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-30 09:13:22,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:13:22,744 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 09:13:22,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:13:22,977 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 09:13:22,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304732622] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:13:22,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:13:22,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-30 09:13:22,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891896743] [2023-08-30 09:13:22,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:13:22,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 09:13:22,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:13:22,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 09:13:22,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-08-30 09:13:23,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 865 out of 2040 [2023-08-30 09:13:23,065 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 09:13:23,065 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:13:23,065 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 865 of 2040 [2023-08-30 09:13:23,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:13:23,583 INFO L130 PetriNetUnfolder]: 511/920 cut-off events. [2023-08-30 09:13:23,584 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 09:13:23,584 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 09:13:23,587 INFO L137 encePairwiseOnDemand]: 2032/2040 looper letters, 49 selfloop transitions, 12 changer transitions 0/61 dead transitions. [2023-08-30 09:13:23,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 61 transitions, 266 flow [2023-08-30 09:13:23,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 09:13:23,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 09:13:23,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6126 transitions. [2023-08-30 09:13:23,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42899159663865544 [2023-08-30 09:13:23,597 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 6126 transitions. [2023-08-30 09:13:23,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 6126 transitions. [2023-08-30 09:13:23,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:13:23,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 6126 transitions. [2023-08-30 09:13:23,608 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 09:13:23,623 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 09:13:23,626 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 09:13:23,626 INFO L175 Difference]: Start difference. First operand has 53 places, 56 transitions, 128 flow. Second operand 7 states and 6126 transitions. [2023-08-30 09:13:23,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 61 transitions, 266 flow [2023-08-30 09:13:23,627 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 09:13:23,628 INFO L231 Difference]: Finished difference. Result has 58 places, 61 transitions, 168 flow [2023-08-30 09:13:23,628 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 09:13:23,629 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -17 predicate places. [2023-08-30 09:13:23,629 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 61 transitions, 168 flow [2023-08-30 09:13:23,631 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 09:13:23,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:13:23,631 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-08-30 09:13:23,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 09:13:23,841 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 09:13:23,841 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 09:13:23,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:13:23,842 INFO L85 PathProgramCache]: Analyzing trace with hash -521364502, now seen corresponding path program 2 times [2023-08-30 09:13:23,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:13:23,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220862236] [2023-08-30 09:13:23,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:13:23,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:13:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:13:24,475 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 09:13:24,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:13:24,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220862236] [2023-08-30 09:13:24,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220862236] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:13:24,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132666234] [2023-08-30 09:13:24,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 09:13:24,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:13:24,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:13:24,489 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 09:13:24,515 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 09:13:25,491 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-30 09:13:25,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:13:25,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-30 09:13:25,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:13:25,601 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 09:13:25,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:13:25,892 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 09:13:25,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132666234] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:13:25,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:13:25,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-30 09:13:25,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384729237] [2023-08-30 09:13:25,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:13:25,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 09:13:25,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:13:25,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 09:13:25,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2023-08-30 09:13:26,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 863 out of 2040 [2023-08-30 09:13:26,296 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 09:13:26,296 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:13:26,296 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 863 of 2040 [2023-08-30 09:13:26,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:13:29,181 INFO L130 PetriNetUnfolder]: 511/929 cut-off events. [2023-08-30 09:13:29,181 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 09:13:29,182 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 09:13:29,184 INFO L137 encePairwiseOnDemand]: 2032/2040 looper letters, 53 selfloop transitions, 17 changer transitions 0/70 dead transitions. [2023-08-30 09:13:29,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 70 transitions, 356 flow [2023-08-30 09:13:29,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 09:13:29,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 09:13:29,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 10444 transitions. [2023-08-30 09:13:29,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42663398692810456 [2023-08-30 09:13:29,201 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 10444 transitions. [2023-08-30 09:13:29,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 10444 transitions. [2023-08-30 09:13:29,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:13:29,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 10444 transitions. [2023-08-30 09:13:29,216 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 09:13:29,236 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 09:13:29,239 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 09:13:29,239 INFO L175 Difference]: Start difference. First operand has 58 places, 61 transitions, 168 flow. Second operand 12 states and 10444 transitions. [2023-08-30 09:13:29,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 70 transitions, 356 flow [2023-08-30 09:13:29,242 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 09:13:29,250 INFO L231 Difference]: Finished difference. Result has 72 places, 70 transitions, 277 flow [2023-08-30 09:13:29,250 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 09:13:29,252 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -3 predicate places. [2023-08-30 09:13:29,252 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 70 transitions, 277 flow [2023-08-30 09:13:29,255 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 09:13:29,255 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:13:29,255 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1] [2023-08-30 09:13:29,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-30 09:13:29,478 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 09:13:29,479 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 09:13:29,480 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:13:29,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1742521866, now seen corresponding path program 3 times [2023-08-30 09:13:29,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:13:29,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909514645] [2023-08-30 09:13:29,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:13:29,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:13:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:13:30,720 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 09:13:30,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:13:30,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909514645] [2023-08-30 09:13:30,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909514645] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:13:30,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043088790] [2023-08-30 09:13:30,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-30 09:13:30,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:13:30,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:13:30,741 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 09:13:30,742 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 09:13:49,029 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-08-30 09:13:49,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:13:49,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 35 conjunts are in the unsatisfiable core [2023-08-30 09:13:49,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:13:49,278 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 09:13:49,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:13:50,270 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 09:13:50,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043088790] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:13:50,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:13:50,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2023-08-30 09:13:50,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678277256] [2023-08-30 09:13:50,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:13:50,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-08-30 09:13:50,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:13:50,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-08-30 09:13:50,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=871, Unknown=0, NotChecked=0, Total=1190 [2023-08-30 09:13:54,294 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 863 out of 2040 [2023-08-30 09:13:54,311 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 09:13:54,311 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:13:54,311 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 863 of 2040 [2023-08-30 09:13:54,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:14:20,938 WARN L222 SmtUtils]: Spent 17.56s 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 09:14:37,859 WARN L222 SmtUtils]: Spent 12.80s 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 09:15:02,219 INFO L130 PetriNetUnfolder]: 511/947 cut-off events. [2023-08-30 09:15:02,220 INFO L131 PetriNetUnfolder]: For 214/214 co-relation queries the response was YES. [2023-08-30 09:15:02,222 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 09:15:02,224 INFO L137 encePairwiseOnDemand]: 2032/2040 looper letters, 49 selfloop transitions, 39 changer transitions 0/88 dead transitions. [2023-08-30 09:15:02,224 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 88 transitions, 561 flow [2023-08-30 09:15:02,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-08-30 09:15:02,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-08-30 09:15:02,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 21699 transitions. [2023-08-30 09:15:02,254 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4254705882352941 [2023-08-30 09:15:02,254 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 21699 transitions. [2023-08-30 09:15:02,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 21699 transitions. [2023-08-30 09:15:02,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:15:02,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 21699 transitions. [2023-08-30 09:15:02,285 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 09:15:02,359 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 09:15:02,364 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 09:15:02,364 INFO L175 Difference]: Start difference. First operand has 72 places, 70 transitions, 277 flow. Second operand 25 states and 21699 transitions. [2023-08-30 09:15:02,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 88 transitions, 561 flow [2023-08-30 09:15:02,368 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 09:15:02,370 INFO L231 Difference]: Finished difference. Result has 94 places, 88 transitions, 443 flow [2023-08-30 09:15:02,370 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 09:15:02,372 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, 19 predicate places. [2023-08-30 09:15:02,372 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 88 transitions, 443 flow [2023-08-30 09:15:02,376 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 09:15:02,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:15:02,376 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1] [2023-08-30 09:15:02,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-30 09:15:02,588 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 09:15:02,588 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 09:15:02,589 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:15:02,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1269748298, now seen corresponding path program 4 times [2023-08-30 09:15:02,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:15:02,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804766956] [2023-08-30 09:15:02,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:15:02,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:15:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:15:04,204 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 09:15:04,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:15:04,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804766956] [2023-08-30 09:15:04,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804766956] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:15:04,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096315061] [2023-08-30 09:15:04,204 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-30 09:15:04,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:15:04,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:15:04,206 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 09:15:04,210 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 09:15:07,335 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-30 09:15:07,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:15:07,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 1424 conjuncts, 51 conjunts are in the unsatisfiable core [2023-08-30 09:15:07,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:15:07,986 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 09:15:07,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:15:09,550 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 09:15:09,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096315061] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:15:09,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:15:09,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 70 [2023-08-30 09:15:09,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605273055] [2023-08-30 09:15:09,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:15:09,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-08-30 09:15:09,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:15:09,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-08-30 09:15:09,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1233, Invalid=3737, Unknown=0, NotChecked=0, Total=4970 [2023-08-30 09:15:15,633 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 863 out of 2040 [2023-08-30 09:15:15,653 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 09:15:15,653 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:15:15,653 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 863 of 2040 [2023-08-30 09:15:15,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:15:24,285 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 09:15:26,298 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| 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 09:17:13,943 WARN L222 SmtUtils]: Spent 53.02s on a formula simplification that was a NOOP. DAG size: 87 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:17:15,999 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296) .cse0) (< (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0))) is different from false [2023-08-30 09:17:17,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 09:17:19,761 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296) .cse0) (< (mod (+ 19 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296) .cse0) (< (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0))) is different from false [2023-08-30 09:18:52,986 WARN L222 SmtUtils]: Spent 42.96s on a formula simplification that was a NOOP. DAG size: 79 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:18:54,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 09:20:05,954 WARN L222 SmtUtils]: Spent 31.18s 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 09:21:12,847 WARN L222 SmtUtils]: Spent 24.30s 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) Killed by 15