./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_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 fe55b2f9c4aab8ef897b3db507488ea7950c808c5052f30fdbd219f5b35357b3 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:30:09,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:30:09,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:30:09,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:30:09,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:30:09,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:30:09,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:30:09,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:30:09,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:30:09,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:30:09,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:30:09,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:30:09,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:30:09,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:30:09,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:30:09,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:30:09,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:30:09,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:30:09,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:30:09,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:30:09,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:30:09,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:30:09,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:30:09,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:30:09,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:30:09,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:30:09,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:30:09,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:30:09,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:30:09,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:30:09,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:30:09,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:30:09,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:30:09,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:30:09,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:30:09,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:30:09,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:30:09,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:30:09,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:30:09,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:30:09,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:30:09,792 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:30:09,816 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:30:09,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:30:09,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:30:09,817 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:30:09,818 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:30:09,818 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:30:09,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:30:09,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:30:09,819 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:30:09,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:30:09,819 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:30:09,820 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:30:09,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:30:09,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:30:09,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:30:09,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:30:09,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:30:09,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:30:09,821 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:30:09,821 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:30:09,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:30:09,821 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:30:09,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:30:09,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:30:09,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:30:09,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:30:09,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:30:09,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:30:09,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:30:09,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:30:09,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:30:09,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:30:09,823 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:30:09,823 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:30:09,823 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:30:09,823 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:30:09,823 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:30:09,823 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe55b2f9c4aab8ef897b3db507488ea7950c808c5052f30fdbd219f5b35357b3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:30:10,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:30:10,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:30:10,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:30:10,041 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:30:10,041 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:30:10,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i [2023-08-30 13:30:11,007 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:30:11,374 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:30:11,374 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i [2023-08-30 13:30:11,401 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd698910a/6f6158237c9c4abaaca2a0837c9d02d8/FLAG3b627cee7 [2023-08-30 13:30:11,413 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd698910a/6f6158237c9c4abaaca2a0837c9d02d8 [2023-08-30 13:30:11,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:30:11,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:30:11,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:30:11,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:30:11,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:30:11,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:30:11" (1/1) ... [2023-08-30 13:30:11,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6262435f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:30:11, skipping insertion in model container [2023-08-30 13:30:11,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:30:11" (1/1) ... [2023-08-30 13:30:11,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:30:11,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:30:11,736 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_current_pc8736x_gpio_set.i[5469,5482] [2023-08-30 13:30:13,955 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 13:30:14,325 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 13:30:14,325 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 13:30:14,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:30:14,388 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:30:14,402 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_current_pc8736x_gpio_set.i[5469,5482] [2023-08-30 13:30:14,519 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 13:30:14,562 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 13:30:14,562 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 13:30:14,570 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:30:15,002 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:30:15,003 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:30:15,003 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:30:15,003 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:30:15,003 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:30:15,003 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:30:15,003 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:30:15,008 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:30:15,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:30:15 WrapperNode [2023-08-30 13:30:15,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:30:15,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:30:15,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:30:15,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:30:15,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:30:15" (1/1) ... [2023-08-30 13:30:15,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:30:15" (1/1) ... [2023-08-30 13:30:15,150 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 51, statements flattened = 721 [2023-08-30 13:30:15,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:30:15,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:30:15,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:30:15,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:30:15,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:30:15" (1/1) ... [2023-08-30 13:30:15,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:30:15" (1/1) ... [2023-08-30 13:30:15,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:30:15" (1/1) ... [2023-08-30 13:30:15,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:30:15" (1/1) ... [2023-08-30 13:30:15,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:30:15" (1/1) ... [2023-08-30 13:30:15,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:30:15" (1/1) ... [2023-08-30 13:30:15,215 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:30:15" (1/1) ... [2023-08-30 13:30:15,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:30:15" (1/1) ... [2023-08-30 13:30:15,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:30:15,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:30:15,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:30:15,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:30:15,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:30:15" (1/1) ... [2023-08-30 13:30:15,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:30:15,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:30:15,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 13:30:15,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 13:30:15,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 13:30:15,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 13:30:15,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:30:15,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 13:30:15,283 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-08-30 13:30:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-08-30 13:30:15,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:30:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:30:15,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 13:30:15,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:30:15,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 13:30:15,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:30:15,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:30:15,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 13:30:15,285 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-08-30 13:30:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-08-30 13:30:15,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:30:15,287 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 13:30:15,707 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:30:15,709 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:30:16,384 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:30:16,401 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:30:16,401 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2023-08-30 13:30:16,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:30:16 BoogieIcfgContainer [2023-08-30 13:30:16,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:30:16,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:30:16,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:30:16,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:30:16,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:30:11" (1/3) ... [2023-08-30 13:30:16,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e7db1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:30:16, skipping insertion in model container [2023-08-30 13:30:16,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:30:15" (2/3) ... [2023-08-30 13:30:16,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e7db1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:30:16, skipping insertion in model container [2023-08-30 13:30:16,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:30:16" (3/3) ... [2023-08-30 13:30:16,409 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i [2023-08-30 13:30:16,419 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:30:16,425 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:30:16,425 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-08-30 13:30:16,425 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:30:16,495 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 13:30:16,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 769 places, 814 transitions, 1644 flow [2023-08-30 13:30:16,722 INFO L130 PetriNetUnfolder]: 52/812 cut-off events. [2023-08-30 13:30:16,723 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 13:30:16,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 821 conditions, 812 events. 52/812 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1094 event pairs, 0 based on Foata normal form. 0/732 useless extension candidates. Maximal degree in co-relation 766. Up to 9 conditions per place. [2023-08-30 13:30:16,730 INFO L82 GeneralOperation]: Start removeDead. Operand has 769 places, 814 transitions, 1644 flow [2023-08-30 13:30:16,758 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 759 places, 804 transitions, 1617 flow [2023-08-30 13:30:16,760 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:30:16,766 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 759 places, 804 transitions, 1617 flow [2023-08-30 13:30:16,767 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 759 places, 804 transitions, 1617 flow [2023-08-30 13:30:16,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 759 places, 804 transitions, 1617 flow [2023-08-30 13:30:16,854 INFO L130 PetriNetUnfolder]: 52/804 cut-off events. [2023-08-30 13:30:16,854 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 13:30:16,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 812 conditions, 804 events. 52/804 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1043 event pairs, 0 based on Foata normal form. 0/724 useless extension candidates. Maximal degree in co-relation 766. Up to 9 conditions per place. [2023-08-30 13:30:16,859 INFO L119 LiptonReduction]: Number of co-enabled transitions 10560 [2023-08-30 13:31:11,311 WARN L222 SmtUtils]: Spent 5.75s on a formula simplification that was a NOOP. DAG size: 453 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:31:16,987 WARN L222 SmtUtils]: Spent 5.67s on a formula simplification that was a NOOP. DAG size: 453 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:31:22,097 WARN L222 SmtUtils]: Spent 5.11s on a formula simplification that was a NOOP. DAG size: 453 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:31:27,371 WARN L222 SmtUtils]: Spent 5.27s on a formula simplification that was a NOOP. DAG size: 453 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:33:25,600 WARN L222 SmtUtils]: Spent 1.94m on a formula simplification. DAG size of input: 619 DAG size of output: 617 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:34:10,760 WARN L222 SmtUtils]: Spent 45.15s on a formula simplification that was a NOOP. DAG size: 551 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:36:29,523 WARN L222 SmtUtils]: Spent 2.31m on a formula simplification. DAG size of input: 619 DAG size of output: 617 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:36:57,216 WARN L222 SmtUtils]: Spent 27.68s on a formula simplification that was a NOOP. DAG size: 551 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:37:56,247 WARN L222 SmtUtils]: Spent 57.29s on a formula simplification that was a NOOP. DAG size: 585 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:38:21,899 WARN L222 SmtUtils]: Spent 25.65s on a formula simplification that was a NOOP. DAG size: 581 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:39:20,223 WARN L222 SmtUtils]: Spent 58.32s on a formula simplification that was a NOOP. DAG size: 585 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:40:18,161 WARN L222 SmtUtils]: Spent 57.94s on a formula simplification that was a NOOP. DAG size: 581 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:40:25,769 INFO L134 LiptonReduction]: Checked pairs total: 9629 [2023-08-30 13:40:25,770 INFO L136 LiptonReduction]: Total number of compositions: 967 [2023-08-30 13:40:25,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:40:25,781 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;@1c132000, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:40:25,781 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-08-30 13:40:25,787 INFO L130 PetriNetUnfolder]: 2/5 cut-off events. [2023-08-30 13:40:25,788 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:40:25,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:40:25,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 13:40:25,788 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 13:40:25,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:40:25,792 INFO L85 PathProgramCache]: Analyzing trace with hash 3000231, now seen corresponding path program 1 times [2023-08-30 13:40:25,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:40:25,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140728800] [2023-08-30 13:40:25,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:40:25,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:40:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:40:26,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:40:26,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:40:26,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140728800] [2023-08-30 13:40:26,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140728800] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:40:26,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:40:26,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:40:26,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937186611] [2023-08-30 13:40:26,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:40:26,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 13:40:26,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:40:26,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 13:40:26,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 13:40:26,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 764 out of 1781 [2023-08-30 13:40:26,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 77 transitions, 163 flow. Second operand has 2 states, 2 states have (on average 765.5) internal successors, (1531), 2 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:26,126 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:40:26,126 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 764 of 1781 [2023-08-30 13:40:26,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:40:26,328 INFO L130 PetriNetUnfolder]: 115/232 cut-off events. [2023-08-30 13:40:26,328 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-30 13:40:26,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 232 events. 115/232 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 745 event pairs, 105 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 416. Up to 233 conditions per place. [2023-08-30 13:40:26,332 INFO L137 encePairwiseOnDemand]: 1748/1781 looper letters, 36 selfloop transitions, 0 changer transitions 8/44 dead transitions. [2023-08-30 13:40:26,332 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 44 transitions, 185 flow [2023-08-30 13:40:26,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 13:40:26,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 13:40:26,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1605 transitions. [2023-08-30 13:40:26,350 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45058955642897247 [2023-08-30 13:40:26,353 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1605 transitions. [2023-08-30 13:40:26,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1605 transitions. [2023-08-30 13:40:26,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:40:26,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1605 transitions. [2023-08-30 13:40:26,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 802.5) internal successors, (1605), 2 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:26,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1781.0) internal successors, (5343), 3 states have internal predecessors, (5343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:26,373 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1781.0) internal successors, (5343), 3 states have internal predecessors, (5343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:26,375 INFO L175 Difference]: Start difference. First operand has 62 places, 77 transitions, 163 flow. Second operand 2 states and 1605 transitions. [2023-08-30 13:40:26,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 44 transitions, 185 flow [2023-08-30 13:40:26,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 44 transitions, 180 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 13:40:26,379 INFO L231 Difference]: Finished difference. Result has 39 places, 36 transitions, 75 flow [2023-08-30 13:40:26,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1781, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=75, PETRI_PLACES=39, PETRI_TRANSITIONS=36} [2023-08-30 13:40:26,383 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -23 predicate places. [2023-08-30 13:40:26,383 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 36 transitions, 75 flow [2023-08-30 13:40:26,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 765.5) internal successors, (1531), 2 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:26,384 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:40:26,384 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:40:26,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:40:26,385 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 13:40:26,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:40:26,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1411535181, now seen corresponding path program 1 times [2023-08-30 13:40:26,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:40:26,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342278603] [2023-08-30 13:40:26,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:40:26,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:40:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:40:26,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:40:26,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:40:26,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342278603] [2023-08-30 13:40:26,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342278603] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:40:26,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:40:26,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:40:26,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757909837] [2023-08-30 13:40:26,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:40:26,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:40:26,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:40:26,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:40:26,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:40:26,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 754 out of 1781 [2023-08-30 13:40:26,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 755.6666666666666) internal successors, (2267), 3 states have internal predecessors, (2267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:26,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:40:26,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 754 of 1781 [2023-08-30 13:40:26,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:40:27,198 INFO L130 PetriNetUnfolder]: 103/213 cut-off events. [2023-08-30 13:40:27,198 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:40:27,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 213 events. 103/213 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 717 event pairs, 94 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 452. Up to 110 conditions per place. [2023-08-30 13:40:27,199 INFO L137 encePairwiseOnDemand]: 1775/1781 looper letters, 41 selfloop transitions, 4 changer transitions 0/45 dead transitions. [2023-08-30 13:40:27,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 45 transitions, 186 flow [2023-08-30 13:40:27,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:40:27,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:40:27,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2309 transitions. [2023-08-30 13:40:27,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4321542204753884 [2023-08-30 13:40:27,204 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2309 transitions. [2023-08-30 13:40:27,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2309 transitions. [2023-08-30 13:40:27,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:40:27,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2309 transitions. [2023-08-30 13:40:27,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 769.6666666666666) internal successors, (2309), 3 states have internal predecessors, (2309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:27,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1781.0) internal successors, (7124), 4 states have internal predecessors, (7124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:27,217 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1781.0) internal successors, (7124), 4 states have internal predecessors, (7124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:27,217 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 75 flow. Second operand 3 states and 2309 transitions. [2023-08-30 13:40:27,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 45 transitions, 186 flow [2023-08-30 13:40:27,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 45 transitions, 186 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 13:40:27,218 INFO L231 Difference]: Finished difference. Result has 31 places, 34 transitions, 79 flow [2023-08-30 13:40:27,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1781, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=31, PETRI_TRANSITIONS=34} [2023-08-30 13:40:27,219 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -31 predicate places. [2023-08-30 13:40:27,219 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 34 transitions, 79 flow [2023-08-30 13:40:27,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 755.6666666666666) internal successors, (2267), 3 states have internal predecessors, (2267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:27,220 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:40:27,221 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:40:27,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:40:27,221 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 13:40:27,221 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:40:27,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1409926465, now seen corresponding path program 1 times [2023-08-30 13:40:27,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:40:27,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726558381] [2023-08-30 13:40:27,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:40:27,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:40:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:40:27,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:40:27,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:40:27,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726558381] [2023-08-30 13:40:27,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726558381] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:40:27,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:40:27,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:40:27,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736398464] [2023-08-30 13:40:27,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:40:27,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:40:27,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:40:27,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:40:27,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:40:27,893 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 754 out of 1781 [2023-08-30 13:40:27,895 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 34 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 755.6666666666666) internal successors, (2267), 3 states have internal predecessors, (2267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:27,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:40:27,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 754 of 1781 [2023-08-30 13:40:27,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:40:28,230 INFO L130 PetriNetUnfolder]: 103/214 cut-off events. [2023-08-30 13:40:28,231 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:40:28,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 214 events. 103/214 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 717 event pairs, 94 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 458. Up to 214 conditions per place. [2023-08-30 13:40:28,232 INFO L137 encePairwiseOnDemand]: 1777/1781 looper letters, 33 selfloop transitions, 2 changer transitions 0/35 dead transitions. [2023-08-30 13:40:28,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 35 transitions, 151 flow [2023-08-30 13:40:28,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:40:28,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:40:28,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2299 transitions. [2023-08-30 13:40:28,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4302826127643646 [2023-08-30 13:40:28,237 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2299 transitions. [2023-08-30 13:40:28,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2299 transitions. [2023-08-30 13:40:28,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:40:28,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2299 transitions. [2023-08-30 13:40:28,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 766.3333333333334) internal successors, (2299), 3 states have internal predecessors, (2299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:28,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1781.0) internal successors, (7124), 4 states have internal predecessors, (7124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:28,249 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1781.0) internal successors, (7124), 4 states have internal predecessors, (7124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:28,249 INFO L175 Difference]: Start difference. First operand has 31 places, 34 transitions, 79 flow. Second operand 3 states and 2299 transitions. [2023-08-30 13:40:28,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 35 transitions, 151 flow [2023-08-30 13:40:28,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 35 transitions, 143 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:40:28,251 INFO L231 Difference]: Finished difference. Result has 32 places, 35 transitions, 85 flow [2023-08-30 13:40:28,251 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1781, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=32, PETRI_TRANSITIONS=35} [2023-08-30 13:40:28,252 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -30 predicate places. [2023-08-30 13:40:28,253 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 35 transitions, 85 flow [2023-08-30 13:40:28,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 755.6666666666666) internal successors, (2267), 3 states have internal predecessors, (2267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:28,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:40:28,256 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 13:40:28,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:40:28,257 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 13:40:28,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:40:28,257 INFO L85 PathProgramCache]: Analyzing trace with hash -868630306, now seen corresponding path program 1 times [2023-08-30 13:40:28,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:40:28,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841902536] [2023-08-30 13:40:28,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:40:28,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:40:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:40:28,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:40:28,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:40:28,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841902536] [2023-08-30 13:40:28,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841902536] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:40:28,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166251227] [2023-08-30 13:40:28,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:40:28,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:40:28,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:40:28,708 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 13:40:28,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 13:40:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:40:29,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 13:40:29,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:40:29,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 13:40:29,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 13:40:29,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166251227] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:40:29,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 13:40:29,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-30 13:40:29,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58462951] [2023-08-30 13:40:29,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:40:29,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:40:29,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:40:29,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:40:29,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:40:29,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 759 out of 1781 [2023-08-30 13:40:29,415 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 35 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 761.0) internal successors, (2283), 3 states have internal predecessors, (2283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:29,415 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:40:29,415 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 759 of 1781 [2023-08-30 13:40:29,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:40:29,921 INFO L130 PetriNetUnfolder]: 48/102 cut-off events. [2023-08-30 13:40:29,921 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:40:29,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 102 events. 48/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 332 event pairs, 2 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 221. Up to 68 conditions per place. [2023-08-30 13:40:29,922 INFO L137 encePairwiseOnDemand]: 1779/1781 looper letters, 38 selfloop transitions, 1 changer transitions 0/39 dead transitions. [2023-08-30 13:40:29,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 39 transitions, 173 flow [2023-08-30 13:40:29,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:40:29,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:40:29,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2316 transitions. [2023-08-30 13:40:29,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.433464345873105 [2023-08-30 13:40:29,926 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2316 transitions. [2023-08-30 13:40:29,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2316 transitions. [2023-08-30 13:40:29,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:40:29,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2316 transitions. [2023-08-30 13:40:29,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 772.0) internal successors, (2316), 3 states have internal predecessors, (2316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:29,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1781.0) internal successors, (7124), 4 states have internal predecessors, (7124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:29,937 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1781.0) internal successors, (7124), 4 states have internal predecessors, (7124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:29,937 INFO L175 Difference]: Start difference. First operand has 32 places, 35 transitions, 85 flow. Second operand 3 states and 2316 transitions. [2023-08-30 13:40:29,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 39 transitions, 173 flow [2023-08-30 13:40:29,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 39 transitions, 169 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 13:40:29,938 INFO L231 Difference]: Finished difference. Result has 32 places, 34 transitions, 81 flow [2023-08-30 13:40:29,938 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1781, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=32, PETRI_TRANSITIONS=34} [2023-08-30 13:40:29,939 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -30 predicate places. [2023-08-30 13:40:29,939 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 34 transitions, 81 flow [2023-08-30 13:40:29,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 761.0) internal successors, (2283), 3 states have internal predecessors, (2283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:29,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:40:29,940 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 13:40:29,948 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 13:40:30,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:40:30,148 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 33 more)] === [2023-08-30 13:40:30,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:40:30,149 INFO L85 PathProgramCache]: Analyzing trace with hash -868630084, now seen corresponding path program 1 times [2023-08-30 13:40:30,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:40:30,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964511755] [2023-08-30 13:40:30,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:40:30,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:40:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:40:30,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:40:30,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:40:30,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964511755] [2023-08-30 13:40:30,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964511755] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:40:30,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034692737] [2023-08-30 13:40:30,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:40:30,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:40:30,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:40:30,736 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 13:40:30,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 13:40:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:40:31,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-30 13:40:31,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:40:31,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:40:31,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:40:31,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:40:31,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034692737] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:40:31,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:40:31,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-30 13:40:31,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115024315] [2023-08-30 13:40:31,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:40:31,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:40:31,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:40:31,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:40:31,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:40:31,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 750 out of 1781 [2023-08-30 13:40:31,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 34 transitions, 81 flow. Second operand has 8 states, 8 states have (on average 751.5) internal successors, (6012), 8 states have internal predecessors, (6012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:31,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:40:31,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 750 of 1781 [2023-08-30 13:40:31,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:40:32,377 INFO L130 PetriNetUnfolder]: 48/107 cut-off events. [2023-08-30 13:40:32,377 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-30 13:40:32,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 107 events. 48/107 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 295 event pairs, 38 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 240. Up to 102 conditions per place. [2023-08-30 13:40:32,378 INFO L137 encePairwiseOnDemand]: 1773/1781 looper letters, 31 selfloop transitions, 8 changer transitions 0/39 dead transitions. [2023-08-30 13:40:32,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 39 transitions, 175 flow [2023-08-30 13:40:32,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:40:32,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:40:32,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4549 transitions. [2023-08-30 13:40:32,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42569717387235634 [2023-08-30 13:40:32,386 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4549 transitions. [2023-08-30 13:40:32,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4549 transitions. [2023-08-30 13:40:32,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:40:32,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4549 transitions. [2023-08-30 13:40:32,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 758.1666666666666) internal successors, (4549), 6 states have internal predecessors, (4549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:32,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1781.0) internal successors, (12467), 7 states have internal predecessors, (12467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:32,402 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1781.0) internal successors, (12467), 7 states have internal predecessors, (12467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:32,402 INFO L175 Difference]: Start difference. First operand has 32 places, 34 transitions, 81 flow. Second operand 6 states and 4549 transitions. [2023-08-30 13:40:32,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 39 transitions, 175 flow [2023-08-30 13:40:32,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 39 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:40:32,403 INFO L231 Difference]: Finished difference. Result has 39 places, 39 transitions, 146 flow [2023-08-30 13:40:32,404 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1781, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=146, PETRI_PLACES=39, PETRI_TRANSITIONS=39} [2023-08-30 13:40:32,404 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -23 predicate places. [2023-08-30 13:40:32,404 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 39 transitions, 146 flow [2023-08-30 13:40:32,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 751.5) internal successors, (6012), 8 states have internal predecessors, (6012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:32,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:40:32,409 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-08-30 13:40:32,420 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 13:40:32,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:40:32,622 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 33 more)] === [2023-08-30 13:40:32,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:40:32,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1672891229, now seen corresponding path program 2 times [2023-08-30 13:40:32,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:40:32,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987126503] [2023-08-30 13:40:32,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:40:32,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:40:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:40:33,205 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:40:33,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:40:33,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987126503] [2023-08-30 13:40:33,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987126503] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:40:33,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307748764] [2023-08-30 13:40:33,206 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 13:40:33,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:40:33,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:40:33,207 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 13:40:33,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-30 13:40:34,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-30 13:40:34,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 13:40:34,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-30 13:40:34,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:40:34,337 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:40:34,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:40:34,576 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:40:34,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307748764] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:40:34,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:40:34,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-30 13:40:34,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079150862] [2023-08-30 13:40:34,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:40:34,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 13:40:34,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:40:34,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 13:40:34,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-08-30 13:40:35,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 750 out of 1781 [2023-08-30 13:40:35,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 39 transitions, 146 flow. Second operand has 17 states, 17 states have (on average 751.2352941176471) internal successors, (12771), 17 states have internal predecessors, (12771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:35,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:40:35,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 750 of 1781 [2023-08-30 13:40:35,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:40:36,884 INFO L130 PetriNetUnfolder]: 48/116 cut-off events. [2023-08-30 13:40:36,884 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2023-08-30 13:40:36,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 116 events. 48/116 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 311 event pairs, 38 based on Foata normal form. 9/101 useless extension candidates. Maximal degree in co-relation 298. Up to 102 conditions per place. [2023-08-30 13:40:36,885 INFO L137 encePairwiseOnDemand]: 1773/1781 looper letters, 31 selfloop transitions, 17 changer transitions 0/48 dead transitions. [2023-08-30 13:40:36,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 48 transitions, 290 flow [2023-08-30 13:40:36,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:40:36,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:40:36,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 9066 transitions. [2023-08-30 13:40:36,899 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42419988770353734 [2023-08-30 13:40:36,899 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 9066 transitions. [2023-08-30 13:40:36,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 9066 transitions. [2023-08-30 13:40:36,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:40:36,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 9066 transitions. [2023-08-30 13:40:36,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 755.5) internal successors, (9066), 12 states have internal predecessors, (9066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:36,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1781.0) internal successors, (23153), 13 states have internal predecessors, (23153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:36,930 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1781.0) internal successors, (23153), 13 states have internal predecessors, (23153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:36,931 INFO L175 Difference]: Start difference. First operand has 39 places, 39 transitions, 146 flow. Second operand 12 states and 9066 transitions. [2023-08-30 13:40:36,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 48 transitions, 290 flow [2023-08-30 13:40:36,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 48 transitions, 280 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-30 13:40:36,933 INFO L231 Difference]: Finished difference. Result has 55 places, 48 transitions, 280 flow [2023-08-30 13:40:36,933 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1781, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=280, PETRI_PLACES=55, PETRI_TRANSITIONS=48} [2023-08-30 13:40:36,933 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -7 predicate places. [2023-08-30 13:40:36,934 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 48 transitions, 280 flow [2023-08-30 13:40:36,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 751.2352941176471) internal successors, (12771), 17 states have internal predecessors, (12771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:36,936 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:40:36,936 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1] [2023-08-30 13:40:36,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-30 13:40:37,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:40:37,150 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_setErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 13:40:37,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:40:37,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1907925251, now seen corresponding path program 3 times [2023-08-30 13:40:37,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:40:37,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324752283] [2023-08-30 13:40:37,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:40:37,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:40:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:40:38,222 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:40:38,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:40:38,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324752283] [2023-08-30 13:40:38,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324752283] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:40:38,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355284253] [2023-08-30 13:40:38,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-30 13:40:38,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:40:38,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:40:38,225 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 13:40:38,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-30 13:40:47,771 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-08-30 13:40:47,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 13:40:47,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 32 conjunts are in the unsatisfiable core [2023-08-30 13:40:47,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:40:48,054 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:40:48,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:40:48,780 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:40:48,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355284253] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:40:48,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:40:48,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2023-08-30 13:40:48,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532762906] [2023-08-30 13:40:48,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:40:48,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-08-30 13:40:48,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:40:48,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-08-30 13:40:48,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=871, Unknown=0, NotChecked=0, Total=1190 [2023-08-30 13:40:51,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 750 out of 1781 [2023-08-30 13:40:51,365 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 280 flow. Second operand has 35 states, 35 states have (on average 751.1142857142858) internal successors, (26289), 35 states have internal predecessors, (26289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:40:51,365 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:40:51,365 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 750 of 1781 [2023-08-30 13:40:51,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:41:19,992 WARN L222 SmtUtils]: Spent 19.14s on a formula simplification. DAG size of input: 61 DAG size of output: 47 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 13:41:31,904 WARN L222 SmtUtils]: Spent 6.97s on a formula simplification. DAG size of input: 55 DAG size of output: 43 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 13:41:47,427 INFO L130 PetriNetUnfolder]: 48/134 cut-off events. [2023-08-30 13:41:47,427 INFO L131 PetriNetUnfolder]: For 530/530 co-relation queries the response was YES. [2023-08-30 13:41:47,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 134 events. 48/134 cut-off events. For 530/530 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 296 event pairs, 38 based on Foata normal form. 18/128 useless extension candidates. Maximal degree in co-relation 425. Up to 97 conditions per place. [2023-08-30 13:41:47,428 INFO L137 encePairwiseOnDemand]: 1773/1781 looper letters, 27 selfloop transitions, 39 changer transitions 0/66 dead transitions. [2023-08-30 13:41:47,428 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 66 transitions, 544 flow [2023-08-30 13:41:47,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-08-30 13:41:47,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-08-30 13:41:47,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 18852 transitions. [2023-08-30 13:41:47,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42340258281864124 [2023-08-30 13:41:47,448 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 18852 transitions. [2023-08-30 13:41:47,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 18852 transitions. [2023-08-30 13:41:47,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:41:47,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 18852 transitions. [2023-08-30 13:41:47,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 754.08) internal successors, (18852), 25 states have internal predecessors, (18852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:41:47,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 1781.0) internal successors, (46306), 26 states have internal predecessors, (46306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:41:47,537 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 1781.0) internal successors, (46306), 26 states have internal predecessors, (46306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:41:47,538 INFO L175 Difference]: Start difference. First operand has 55 places, 48 transitions, 280 flow. Second operand 25 states and 18852 transitions. [2023-08-30 13:41:47,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 66 transitions, 544 flow [2023-08-30 13:41:47,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 66 transitions, 468 flow, removed 36 selfloop flow, removed 2 redundant places. [2023-08-30 13:41:47,541 INFO L231 Difference]: Finished difference. Result has 77 places, 66 transitions, 418 flow [2023-08-30 13:41:47,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1781, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=418, PETRI_PLACES=77, PETRI_TRANSITIONS=66} [2023-08-30 13:41:47,542 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2023-08-30 13:41:47,542 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 66 transitions, 418 flow [2023-08-30 13:41:47,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 751.1142857142858) internal successors, (26289), 35 states have internal predecessors, (26289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:41:47,545 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:41:47,545 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1] [2023-08-30 13:41:47,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-30 13:41:47,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:41:47,760 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_setErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 13:41:47,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:41:47,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1831608771, now seen corresponding path program 4 times [2023-08-30 13:41:47,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:41:47,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546619602] [2023-08-30 13:41:47,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:41:47,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:41:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:41:49,046 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:41:49,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:41:49,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546619602] [2023-08-30 13:41:49,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546619602] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:41:49,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358153019] [2023-08-30 13:41:49,047 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-30 13:41:49,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:41:49,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:41:49,048 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 13:41:49,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-30 13:41:51,470 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-30 13:41:51,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 13:41:51,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 1424 conjuncts, 51 conjunts are in the unsatisfiable core [2023-08-30 13:41:51,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:41:52,130 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:41:52,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:41:53,252 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:41:53,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358153019] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:41:53,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:41:53,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 70 [2023-08-30 13:41:53,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303832113] [2023-08-30 13:41:53,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:41:53,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-08-30 13:41:53,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:41:53,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-08-30 13:41:53,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1264, Invalid=3706, Unknown=0, NotChecked=0, Total=4970 [2023-08-30 13:41:57,836 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 752 out of 1781 [2023-08-30 13:41:57,854 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 66 transitions, 418 flow. Second operand has 71 states, 71 states have (on average 753.056338028169) internal successors, (53467), 71 states have internal predecessors, (53467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:41:57,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:41:57,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 752 of 1781 [2023-08-30 13:41:57,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:42:04,793 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296) .cse0) (< (mod (+ 19 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296) .cse0) (< (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0))) is different from false [2023-08-30 13:42:06,802 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 13:42:47,409 WARN L222 SmtUtils]: Spent 17.67s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 13:44:17,475 WARN L222 SmtUtils]: Spent 53.75s 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 13:44:18,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 13:44:21,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 13:44:23,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 13:44:24,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 13:44:25,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 13:44:27,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15