/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:19:28,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:19:28,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:19:28,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:19:28,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:19:28,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:19:28,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:19:28,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:19:28,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:19:28,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:19:28,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:19:28,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:19:28,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:19:28,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:19:28,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:19:28,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:19:28,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:19:28,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:19:28,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:19:28,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:19:28,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:19:28,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:19:28,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:19:28,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:19:28,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 07:19:28,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 07:19:28,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 07:19:28,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 07:19:28,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 07:19:28,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 07:19:28,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 07:19:28,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 07:19:28,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 07:19:28,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 07:19:28,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 07:19:28,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 07:19:28,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 07:19:28,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 07:19:28,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:19:28,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:19:28,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:19:28,211 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 07:19:28,234 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:19:28,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:19:28,235 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:19:28,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:19:28,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:19:28,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:19:28,236 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:19:28,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:19:28,237 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:19:28,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:19:28,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:19:28,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:19:28,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:19:28,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:19:28,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:19:28,238 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:19:28,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:19:28,238 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:19:28,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:19:28,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:19:28,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:19:28,238 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:19:28,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:19:28,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:19:28,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:19:28,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:19:28,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:19:28,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:19:28,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:19:28,239 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:19:28,239 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:19:28,239 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:19:28,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:19:28,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:19:28,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:19:28,417 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:19:28,418 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:19:28,418 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2023-01-28 07:19:29,345 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:19:29,777 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:19:29,777 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2023-01-28 07:19:29,805 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdefd82ba/bc048b41c32f4350b8b0566ca8809f1a/FLAGe08f4065c [2023-01-28 07:19:29,818 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdefd82ba/bc048b41c32f4350b8b0566ca8809f1a [2023-01-28 07:19:29,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:19:29,821 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:19:29,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:19:29,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:19:29,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:19:29,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:19:29" (1/1) ... [2023-01-28 07:19:29,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f587150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:19:29, skipping insertion in model container [2023-01-28 07:19:29,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:19:29" (1/1) ... [2023-01-28 07:19:29,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:19:29,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:19:30,163 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i[5469,5482] [2023-01-28 07:19:32,880 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-28 07:19:33,279 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:19:33,281 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:19:33,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:19:33,346 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:19:33,365 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i[5469,5482] [2023-01-28 07:19:33,473 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-28 07:19:33,509 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:19:33,509 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:19:33,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:19:33,878 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:19:33,878 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:19:33,878 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:19:33,878 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:19:33,878 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:19:33,878 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:19:33,878 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:19:33,883 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:19:33,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:19:33 WrapperNode [2023-01-28 07:19:33,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:19:33,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:19:33,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:19:33,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:19:33,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:19:33" (1/1) ... [2023-01-28 07:19:33,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:19:33" (1/1) ... [2023-01-28 07:19:33,995 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 58, statements flattened = 791 [2023-01-28 07:19:33,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:19:33,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:19:33,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:19:33,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:19:34,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:19:33" (1/1) ... [2023-01-28 07:19:34,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:19:33" (1/1) ... [2023-01-28 07:19:34,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:19:33" (1/1) ... [2023-01-28 07:19:34,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:19:33" (1/1) ... [2023-01-28 07:19:34,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:19:33" (1/1) ... [2023-01-28 07:19:34,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:19:33" (1/1) ... [2023-01-28 07:19:34,032 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:19:33" (1/1) ... [2023-01-28 07:19:34,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:19:33" (1/1) ... [2023-01-28 07:19:34,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:19:34,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:19:34,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:19:34,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:19:34,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:19:33" (1/1) ... [2023-01-28 07:19:34,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:19:34,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:19:34,064 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) [2023-01-28 07:19:34,084 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 [2023-01-28 07:19:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:19:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-28 07:19:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:19:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-28 07:19:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-01-28 07:19:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-01-28 07:19:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:19:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:19:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-01-28 07:19:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:19:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-28 07:19:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:19:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:19:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-01-28 07:19:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-01-28 07:19:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-01-28 07:19:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:19:34,093 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 07:19:34,493 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:19:34,494 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:19:34,984 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:19:34,991 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:19:34,992 INFO L302 CfgBuilder]: Removed 31 assume(true) statements. [2023-01-28 07:19:34,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:19:34 BoogieIcfgContainer [2023-01-28 07:19:34,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:19:34,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:19:34,995 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:19:34,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:19:34,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:19:29" (1/3) ... [2023-01-28 07:19:34,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5e7f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:19:34, skipping insertion in model container [2023-01-28 07:19:34,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:19:33" (2/3) ... [2023-01-28 07:19:34,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5e7f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:19:34, skipping insertion in model container [2023-01-28 07:19:34,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:19:34" (3/3) ... [2023-01-28 07:19:34,998 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2023-01-28 07:19:35,008 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:19:35,009 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-01-28 07:19:35,009 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:19:35,087 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-28 07:19:35,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 806 places, 864 transitions, 1744 flow [2023-01-28 07:19:35,359 INFO L130 PetriNetUnfolder]: 65/862 cut-off events. [2023-01-28 07:19:35,360 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 07:19:35,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 871 conditions, 862 events. 65/862 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1552 event pairs, 0 based on Foata normal form. 0/793 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-01-28 07:19:35,371 INFO L82 GeneralOperation]: Start removeDead. Operand has 806 places, 864 transitions, 1744 flow [2023-01-28 07:19:35,382 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 796 places, 854 transitions, 1717 flow [2023-01-28 07:19:35,384 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:19:35,394 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 796 places, 854 transitions, 1717 flow [2023-01-28 07:19:35,399 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 796 places, 854 transitions, 1717 flow [2023-01-28 07:19:35,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 796 places, 854 transitions, 1717 flow [2023-01-28 07:19:35,564 INFO L130 PetriNetUnfolder]: 65/854 cut-off events. [2023-01-28 07:19:35,565 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:19:35,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 862 conditions, 854 events. 65/854 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1380 event pairs, 0 based on Foata normal form. 0/785 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-01-28 07:19:35,587 INFO L119 LiptonReduction]: Number of co-enabled transitions 35388 [2023-01-28 07:20:34,799 WARN L222 SmtUtils]: Spent 12.76s on a formula simplification that was a NOOP. DAG size: 372 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:20:44,903 WARN L222 SmtUtils]: Spent 10.08s on a formula simplification that was a NOOP. DAG size: 316 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:20:53,957 WARN L222 SmtUtils]: Spent 9.05s on a formula simplification that was a NOOP. DAG size: 372 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:21:00,941 WARN L222 SmtUtils]: Spent 6.98s on a formula simplification that was a NOOP. DAG size: 316 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:21:14,221 WARN L222 SmtUtils]: Spent 12.20s on a formula simplification that was a NOOP. DAG size: 518 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:21:25,174 WARN L222 SmtUtils]: Spent 10.95s on a formula simplification that was a NOOP. DAG size: 509 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:22:02,953 WARN L222 SmtUtils]: Spent 37.78s on a formula simplification that was a NOOP. DAG size: 518 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:22:29,729 WARN L222 SmtUtils]: Spent 26.77s on a formula simplification that was a NOOP. DAG size: 509 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:22:49,264 WARN L222 SmtUtils]: Spent 7.56s on a formula simplification. DAG size of input: 311 DAG size of output: 304 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:25:00,169 WARN L222 SmtUtils]: Spent 2.15m on a formula simplification. DAG size of input: 609 DAG size of output: 607 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:25:55,411 WARN L222 SmtUtils]: Spent 55.23s 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) [2023-01-28 07:28:51,160 WARN L222 SmtUtils]: Spent 2.93m on a formula simplification. DAG size of input: 615 DAG size of output: 611 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:29:59,014 WARN L222 SmtUtils]: Spent 1.13m on a formula simplification that was a NOOP. DAG size: 584 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:29:59,016 INFO L134 LiptonReduction]: Checked pairs total: 30501 [2023-01-28 07:29:59,016 INFO L136 LiptonReduction]: Total number of compositions: 939 [2023-01-28 07:29:59,026 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:29:59,028 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=false, 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;@5c28c3bd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:29:59,028 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-01-28 07:29:59,035 INFO L130 PetriNetUnfolder]: 6/12 cut-off events. [2023-01-28 07:29:59,035 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:29:59,035 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:29:59,035 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-28 07:29:59,036 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-28 07:29:59,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:29:59,039 INFO L85 PathProgramCache]: Analyzing trace with hash 3239691, now seen corresponding path program 1 times [2023-01-28 07:29:59,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:29:59,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382916262] [2023-01-28 07:29:59,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:29:59,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:29:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:29:59,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:29:59,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:29:59,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382916262] [2023-01-28 07:29:59,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382916262] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:29:59,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:29:59,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 07:29:59,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581846289] [2023-01-28 07:29:59,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:29:59,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-28 07:29:59,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:29:59,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-28 07:29:59,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-28 07:29:59,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 820 out of 1803 [2023-01-28 07:29:59,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 64 transitions, 137 flow. Second operand has 2 states, 2 states have (on average 821.5) internal successors, (1643), 2 states have internal predecessors, (1643), 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) [2023-01-28 07:29:59,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:29:59,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 820 of 1803 [2023-01-28 07:29:59,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:29:59,696 INFO L130 PetriNetUnfolder]: 331/601 cut-off events. [2023-01-28 07:29:59,696 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-01-28 07:29:59,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1238 conditions, 601 events. 331/601 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2178 event pairs, 321 based on Foata normal form. 0/525 useless extension candidates. Maximal degree in co-relation 1082. Up to 602 conditions per place. [2023-01-28 07:29:59,699 INFO L137 encePairwiseOnDemand]: 1786/1803 looper letters, 47 selfloop transitions, 0 changer transitions 0/47 dead transitions. [2023-01-28 07:29:59,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 47 transitions, 197 flow [2023-01-28 07:29:59,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-28 07:29:59,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-28 07:29:59,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1704 transitions. [2023-01-28 07:29:59,713 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47254575707154745 [2023-01-28 07:29:59,714 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1704 transitions. [2023-01-28 07:29:59,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1704 transitions. [2023-01-28 07:29:59,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:29:59,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1704 transitions. [2023-01-28 07:29:59,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 852.0) internal successors, (1704), 2 states have internal predecessors, (1704), 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) [2023-01-28 07:29:59,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1803.0) internal successors, (5409), 3 states have internal predecessors, (5409), 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) [2023-01-28 07:29:59,740 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1803.0) internal successors, (5409), 3 states have internal predecessors, (5409), 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) [2023-01-28 07:29:59,741 INFO L175 Difference]: Start difference. First operand has 45 places, 64 transitions, 137 flow. Second operand 2 states and 1704 transitions. [2023-01-28 07:29:59,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 47 transitions, 197 flow [2023-01-28 07:29:59,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 47 transitions, 192 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-28 07:29:59,745 INFO L231 Difference]: Finished difference. Result has 42 places, 47 transitions, 98 flow [2023-01-28 07:29:59,746 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1803, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=98, PETRI_PLACES=42, PETRI_TRANSITIONS=47} [2023-01-28 07:29:59,749 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -3 predicate places. [2023-01-28 07:29:59,749 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 47 transitions, 98 flow [2023-01-28 07:29:59,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 821.5) internal successors, (1643), 2 states have internal predecessors, (1643), 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) [2023-01-28 07:29:59,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:29:59,750 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:29:59,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:29:59,751 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-28 07:29:59,757 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:29:59,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1584559176, now seen corresponding path program 1 times [2023-01-28 07:29:59,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:29:59,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431284032] [2023-01-28 07:29:59,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:29:59,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:29:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:30:00,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:30:00,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:30:00,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431284032] [2023-01-28 07:30:00,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431284032] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:30:00,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:30:00,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:30:00,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373213892] [2023-01-28 07:30:00,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:30:00,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:30:00,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:30:00,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:30:00,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:30:00,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 798 out of 1803 [2023-01-28 07:30:00,439 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 47 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 800.3333333333334) internal successors, (2401), 3 states have internal predecessors, (2401), 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) [2023-01-28 07:30:00,439 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:30:00,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 798 of 1803 [2023-01-28 07:30:00,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:30:00,742 INFO L130 PetriNetUnfolder]: 331/602 cut-off events. [2023-01-28 07:30:00,742 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-01-28 07:30:00,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1226 conditions, 602 events. 331/602 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2175 event pairs, 321 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 1223. Up to 602 conditions per place. [2023-01-28 07:30:00,744 INFO L137 encePairwiseOnDemand]: 1799/1803 looper letters, 46 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2023-01-28 07:30:00,744 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 48 transitions, 196 flow [2023-01-28 07:30:00,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:30:00,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:30:00,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2444 transitions. [2023-01-28 07:30:00,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4518395267147347 [2023-01-28 07:30:00,748 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2444 transitions. [2023-01-28 07:30:00,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2444 transitions. [2023-01-28 07:30:00,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:30:00,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2444 transitions. [2023-01-28 07:30:00,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 814.6666666666666) internal successors, (2444), 3 states have internal predecessors, (2444), 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) [2023-01-28 07:30:00,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1803.0) internal successors, (7212), 4 states have internal predecessors, (7212), 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) [2023-01-28 07:30:00,762 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1803.0) internal successors, (7212), 4 states have internal predecessors, (7212), 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) [2023-01-28 07:30:00,762 INFO L175 Difference]: Start difference. First operand has 42 places, 47 transitions, 98 flow. Second operand 3 states and 2444 transitions. [2023-01-28 07:30:00,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 48 transitions, 196 flow [2023-01-28 07:30:00,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 48 transitions, 196 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 07:30:00,763 INFO L231 Difference]: Finished difference. Result has 45 places, 48 transitions, 112 flow [2023-01-28 07:30:00,763 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1803, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=45, PETRI_TRANSITIONS=48} [2023-01-28 07:30:00,764 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 0 predicate places. [2023-01-28 07:30:00,764 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 48 transitions, 112 flow [2023-01-28 07:30:00,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 800.3333333333334) internal successors, (2401), 3 states have internal predecessors, (2401), 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) [2023-01-28 07:30:00,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:30:00,766 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:30:00,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 07:30:00,767 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-28 07:30:00,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:30:00,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1091993785, now seen corresponding path program 1 times [2023-01-28 07:30:00,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:30:00,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787551688] [2023-01-28 07:30:00,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:30:00,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:30:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:30:01,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:30:01,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:30:01,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787551688] [2023-01-28 07:30:01,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787551688] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:30:01,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78781209] [2023-01-28 07:30:01,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:30:01,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:30:01,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:30:01,192 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) [2023-01-28 07:30:01,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-28 07:30:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:30:01,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 10 conjunts are in the unsatisfiable core [2023-01-28 07:30:01,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:30:01,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 07:30:01,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 07:30:01,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78781209] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:30:01,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 07:30:01,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-01-28 07:30:01,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10582404] [2023-01-28 07:30:01,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:30:01,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:30:01,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:30:01,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:30:01,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 07:30:01,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 763 out of 1803 [2023-01-28 07:30:01,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 765.6666666666666) internal successors, (2297), 3 states have internal predecessors, (2297), 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) [2023-01-28 07:30:01,594 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:30:01,594 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 763 of 1803 [2023-01-28 07:30:01,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:30:02,295 INFO L130 PetriNetUnfolder]: 376/691 cut-off events. [2023-01-28 07:30:02,295 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-01-28 07:30:02,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1412 conditions, 691 events. 376/691 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2822 event pairs, 135 based on Foata normal form. 0/613 useless extension candidates. Maximal degree in co-relation 1407. Up to 377 conditions per place. [2023-01-28 07:30:02,297 INFO L137 encePairwiseOnDemand]: 1799/1803 looper letters, 63 selfloop transitions, 3 changer transitions 0/66 dead transitions. [2023-01-28 07:30:02,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 66 transitions, 281 flow [2023-01-28 07:30:02,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:30:02,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:30:02,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2355 transitions. [2023-01-28 07:30:02,301 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4353854686633389 [2023-01-28 07:30:02,301 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2355 transitions. [2023-01-28 07:30:02,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2355 transitions. [2023-01-28 07:30:02,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:30:02,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2355 transitions. [2023-01-28 07:30:02,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 785.0) internal successors, (2355), 3 states have internal predecessors, (2355), 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) [2023-01-28 07:30:02,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1803.0) internal successors, (7212), 4 states have internal predecessors, (7212), 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) [2023-01-28 07:30:02,314 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1803.0) internal successors, (7212), 4 states have internal predecessors, (7212), 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) [2023-01-28 07:30:02,314 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 112 flow. Second operand 3 states and 2355 transitions. [2023-01-28 07:30:02,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 66 transitions, 281 flow [2023-01-28 07:30:02,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 66 transitions, 277 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-28 07:30:02,317 INFO L231 Difference]: Finished difference. Result has 47 places, 50 transitions, 127 flow [2023-01-28 07:30:02,317 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1803, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=47, PETRI_TRANSITIONS=50} [2023-01-28 07:30:02,318 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 2 predicate places. [2023-01-28 07:30:02,318 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 50 transitions, 127 flow [2023-01-28 07:30:02,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 765.6666666666666) internal successors, (2297), 3 states have internal predecessors, (2297), 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) [2023-01-28 07:30:02,322 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:30:02,322 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:30:02,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-28 07:30:02,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:30:02,532 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-28 07:30:02,533 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:30:02,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1002200024, now seen corresponding path program 1 times [2023-01-28 07:30:02,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:30:02,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729611637] [2023-01-28 07:30:02,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:30:02,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:30:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:30:03,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:30:03,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:30:03,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729611637] [2023-01-28 07:30:03,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729611637] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:30:03,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875112918] [2023-01-28 07:30:03,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:30:03,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:30:03,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:30:03,127 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) [2023-01-28 07:30:03,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-28 07:30:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:30:03,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 9 conjunts are in the unsatisfiable core [2023-01-28 07:30:03,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:30:03,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:30:03,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:30:03,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:30:03,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875112918] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:30:03,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:30:03,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-01-28 07:30:03,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288329300] [2023-01-28 07:30:03,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:30:03,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 07:30:03,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:30:03,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 07:30:03,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-01-28 07:30:03,997 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 798 out of 1803 [2023-01-28 07:30:04,002 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 50 transitions, 127 flow. Second operand has 8 states, 8 states have (on average 800.125) internal successors, (6401), 8 states have internal predecessors, (6401), 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) [2023-01-28 07:30:04,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:30:04,002 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 798 of 1803 [2023-01-28 07:30:04,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:30:04,586 INFO L130 PetriNetUnfolder]: 376/696 cut-off events. [2023-01-28 07:30:04,586 INFO L131 PetriNetUnfolder]: For 81/81 co-relation queries the response was YES. [2023-01-28 07:30:04,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1538 conditions, 696 events. 376/696 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2754 event pairs, 358 based on Foata normal form. 0/626 useless extension candidates. Maximal degree in co-relation 1532. Up to 691 conditions per place. [2023-01-28 07:30:04,589 INFO L137 encePairwiseOnDemand]: 1795/1803 looper letters, 47 selfloop transitions, 8 changer transitions 0/55 dead transitions. [2023-01-28 07:30:04,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 55 transitions, 253 flow [2023-01-28 07:30:04,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 07:30:04,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 07:30:04,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4851 transitions. [2023-01-28 07:30:04,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44841930116472545 [2023-01-28 07:30:04,596 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4851 transitions. [2023-01-28 07:30:04,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4851 transitions. [2023-01-28 07:30:04,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:30:04,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4851 transitions. [2023-01-28 07:30:04,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 808.5) internal successors, (4851), 6 states have internal predecessors, (4851), 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) [2023-01-28 07:30:04,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1803.0) internal successors, (12621), 7 states have internal predecessors, (12621), 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) [2023-01-28 07:30:04,614 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1803.0) internal successors, (12621), 7 states have internal predecessors, (12621), 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) [2023-01-28 07:30:04,614 INFO L175 Difference]: Start difference. First operand has 47 places, 50 transitions, 127 flow. Second operand 6 states and 4851 transitions. [2023-01-28 07:30:04,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 55 transitions, 253 flow [2023-01-28 07:30:04,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 55 transitions, 250 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 07:30:04,616 INFO L231 Difference]: Finished difference. Result has 54 places, 55 transitions, 190 flow [2023-01-28 07:30:04,616 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1803, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=190, PETRI_PLACES=54, PETRI_TRANSITIONS=55} [2023-01-28 07:30:04,616 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 9 predicate places. [2023-01-28 07:30:04,616 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 55 transitions, 190 flow [2023-01-28 07:30:04,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 800.125) internal successors, (6401), 8 states have internal predecessors, (6401), 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) [2023-01-28 07:30:04,618 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:30:04,618 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:30:04,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-28 07:30:04,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-01-28 07:30:04,827 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-28 07:30:04,828 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:30:04,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1231745623, now seen corresponding path program 2 times [2023-01-28 07:30:04,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:30:04,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808658564] [2023-01-28 07:30:04,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:30:04,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:30:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:30:05,480 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:30:05,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:30:05,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808658564] [2023-01-28 07:30:05,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808658564] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:30:05,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163151158] [2023-01-28 07:30:05,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 07:30:05,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:30:05,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:30:05,482 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) [2023-01-28 07:30:05,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-28 07:30:06,750 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-28 07:30:06,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:30:06,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 22 conjunts are in the unsatisfiable core [2023-01-28 07:30:06,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:30:06,965 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-28 07:30:06,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 53 [2023-01-28 07:30:06,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-28 07:30:07,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-01-28 07:30:07,121 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-01-28 07:30:07,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 07:30:07,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163151158] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:30:07,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 07:30:07,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-01-28 07:30:07,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515237227] [2023-01-28 07:30:07,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:30:07,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 07:30:07,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:30:07,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 07:30:07,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-01-28 07:30:07,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 760 out of 1803 [2023-01-28 07:30:07,130 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 55 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 762.75) internal successors, (3051), 4 states have internal predecessors, (3051), 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) [2023-01-28 07:30:07,130 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:30:07,130 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 760 of 1803 [2023-01-28 07:30:07,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:30:07,985 INFO L130 PetriNetUnfolder]: 412/783 cut-off events. [2023-01-28 07:30:07,985 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2023-01-28 07:30:07,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1718 conditions, 783 events. 412/783 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3327 event pairs, 229 based on Foata normal form. 0/727 useless extension candidates. Maximal degree in co-relation 1709. Up to 291 conditions per place. [2023-01-28 07:30:07,988 INFO L137 encePairwiseOnDemand]: 1798/1803 looper letters, 76 selfloop transitions, 6 changer transitions 2/84 dead transitions. [2023-01-28 07:30:07,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 84 transitions, 429 flow [2023-01-28 07:30:07,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 07:30:07,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 07:30:07,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3117 transitions. [2023-01-28 07:30:07,993 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4321963394342762 [2023-01-28 07:30:07,993 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3117 transitions. [2023-01-28 07:30:07,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3117 transitions. [2023-01-28 07:30:07,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:30:07,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3117 transitions. [2023-01-28 07:30:07,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 779.25) internal successors, (3117), 4 states have internal predecessors, (3117), 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) [2023-01-28 07:30:08,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1803.0) internal successors, (9015), 5 states have internal predecessors, (9015), 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) [2023-01-28 07:30:08,005 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1803.0) internal successors, (9015), 5 states have internal predecessors, (9015), 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) [2023-01-28 07:30:08,005 INFO L175 Difference]: Start difference. First operand has 54 places, 55 transitions, 190 flow. Second operand 4 states and 3117 transitions. [2023-01-28 07:30:08,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 84 transitions, 429 flow [2023-01-28 07:30:08,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 84 transitions, 419 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-01-28 07:30:08,009 INFO L231 Difference]: Finished difference. Result has 57 places, 57 transitions, 209 flow [2023-01-28 07:30:08,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1803, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=209, PETRI_PLACES=57, PETRI_TRANSITIONS=57} [2023-01-28 07:30:08,011 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 12 predicate places. [2023-01-28 07:30:08,011 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 57 transitions, 209 flow [2023-01-28 07:30:08,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 762.75) internal successors, (3051), 4 states have internal predecessors, (3051), 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) [2023-01-28 07:30:08,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:30:08,012 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:30:08,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-28 07:30:08,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:30:08,221 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-28 07:30:08,221 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:30:08,221 INFO L85 PathProgramCache]: Analyzing trace with hash -470590488, now seen corresponding path program 1 times [2023-01-28 07:30:08,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:30:08,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136373742] [2023-01-28 07:30:08,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:30:08,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:30:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:30:08,725 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:30:08,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:30:08,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136373742] [2023-01-28 07:30:08,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136373742] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:30:08,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904296869] [2023-01-28 07:30:08,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:30:08,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:30:08,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:30:08,727 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) [2023-01-28 07:30:08,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-28 07:30:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:30:09,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 15 conjunts are in the unsatisfiable core [2023-01-28 07:30:09,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:30:10,327 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:30:10,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:30:10,582 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:30:10,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904296869] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:30:10,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:30:10,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2023-01-28 07:30:10,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634581171] [2023-01-28 07:30:10,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:30:10,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-01-28 07:30:10,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:30:10,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-01-28 07:30:10,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-01-28 07:30:10,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 802 out of 1803 [2023-01-28 07:30:10,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 57 transitions, 209 flow. Second operand has 16 states, 16 states have (on average 803.625) internal successors, (12858), 16 states have internal predecessors, (12858), 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) [2023-01-28 07:30:10,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:30:10,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 802 of 1803 [2023-01-28 07:30:10,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:30:13,051 INFO L130 PetriNetUnfolder]: 412/792 cut-off events. [2023-01-28 07:30:13,051 INFO L131 PetriNetUnfolder]: For 247/247 co-relation queries the response was YES. [2023-01-28 07:30:13,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1873 conditions, 792 events. 412/792 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3327 event pairs, 388 based on Foata normal form. 9/768 useless extension candidates. Maximal degree in co-relation 1862. Up to 778 conditions per place. [2023-01-28 07:30:13,054 INFO L137 encePairwiseOnDemand]: 1795/1803 looper letters, 49 selfloop transitions, 17 changer transitions 0/66 dead transitions. [2023-01-28 07:30:13,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 66 transitions, 389 flow [2023-01-28 07:30:13,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-28 07:30:13,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-28 07:30:13,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 9704 transitions. [2023-01-28 07:30:13,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4485117396931041 [2023-01-28 07:30:13,068 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 9704 transitions. [2023-01-28 07:30:13,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 9704 transitions. [2023-01-28 07:30:13,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:30:13,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 9704 transitions. [2023-01-28 07:30:13,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 808.6666666666666) internal successors, (9704), 12 states have internal predecessors, (9704), 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) [2023-01-28 07:30:13,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1803.0) internal successors, (23439), 13 states have internal predecessors, (23439), 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) [2023-01-28 07:30:13,141 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1803.0) internal successors, (23439), 13 states have internal predecessors, (23439), 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) [2023-01-28 07:30:13,141 INFO L175 Difference]: Start difference. First operand has 57 places, 57 transitions, 209 flow. Second operand 12 states and 9704 transitions. [2023-01-28 07:30:13,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 66 transitions, 389 flow [2023-01-28 07:30:13,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 66 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 07:30:13,143 INFO L231 Difference]: Finished difference. Result has 72 places, 66 transitions, 346 flow [2023-01-28 07:30:13,144 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1803, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=346, PETRI_PLACES=72, PETRI_TRANSITIONS=66} [2023-01-28 07:30:13,144 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 27 predicate places. [2023-01-28 07:30:13,144 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 66 transitions, 346 flow [2023-01-28 07:30:13,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 803.625) internal successors, (12858), 16 states have internal predecessors, (12858), 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) [2023-01-28 07:30:13,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:30:13,147 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:30:13,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-28 07:30:13,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:30:13,356 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-28 07:30:13,357 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:30:13,357 INFO L85 PathProgramCache]: Analyzing trace with hash 710289800, now seen corresponding path program 2 times [2023-01-28 07:30:13,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:30:13,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030679385] [2023-01-28 07:30:13,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:30:13,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:30:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:30:14,401 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:30:14,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:30:14,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030679385] [2023-01-28 07:30:14,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030679385] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:30:14,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175935218] [2023-01-28 07:30:14,402 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 07:30:14,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:30:14,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:30:14,403 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) [2023-01-28 07:30:14,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-28 07:30:15,220 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-28 07:30:15,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:30:15,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 1106 conjuncts, 243 conjunts are in the unsatisfiable core [2023-01-28 07:30:15,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:30:15,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:15,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:21,063 WARN L222 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 1202 DAG size of output: 283 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-01-28 07:30:21,064 INFO L321 Elim1Store]: treesize reduction 9076, result has 6.5 percent of original size [2023-01-28 07:30:21,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 10 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 77 case distinctions, treesize of input 427 treesize of output 974 [2023-01-28 07:30:31,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:31,337 INFO L321 Elim1Store]: treesize reduction 198, result has 23.6 percent of original size [2023-01-28 07:30:31,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 403 treesize of output 436 [2023-01-28 07:30:31,441 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-01-28 07:30:31,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 347 treesize of output 346 [2023-01-28 07:30:31,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 335 treesize of output 335 [2023-01-28 07:30:31,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 329 [2023-01-28 07:30:31,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 323 [2023-01-28 07:30:31,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:30:31,920 INFO L321 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2023-01-28 07:30:31,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 100 treesize of output 116 [2023-01-28 07:30:32,014 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-01-28 07:30:32,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-01-28 07:30:32,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-01-28 07:30:32,250 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-01-28 07:30:32,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 07:30:32,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175935218] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:30:32,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 07:30:32,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 17 [2023-01-28 07:30:32,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901368095] [2023-01-28 07:30:32,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:30:32,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 07:30:32,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:30:32,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 07:30:32,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2023-01-28 07:30:32,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 701 out of 1803 [2023-01-28 07:30:32,256 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 66 transitions, 346 flow. Second operand has 7 states, 7 states have (on average 702.7142857142857) internal successors, (4919), 7 states have internal predecessors, (4919), 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) [2023-01-28 07:30:32,256 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:30:32,256 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 701 of 1803 [2023-01-28 07:30:32,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:30:33,048 INFO L130 PetriNetUnfolder]: 387/750 cut-off events. [2023-01-28 07:30:33,048 INFO L131 PetriNetUnfolder]: For 167/167 co-relation queries the response was YES. [2023-01-28 07:30:33,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1780 conditions, 750 events. 387/750 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3146 event pairs, 223 based on Foata normal form. 17/734 useless extension candidates. Maximal degree in co-relation 1763. Up to 333 conditions per place. [2023-01-28 07:30:33,053 INFO L137 encePairwiseOnDemand]: 1791/1803 looper letters, 78 selfloop transitions, 14 changer transitions 2/94 dead transitions. [2023-01-28 07:30:33,053 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 94 transitions, 609 flow [2023-01-28 07:30:33,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 07:30:33,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 07:30:33,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4283 transitions. [2023-01-28 07:30:33,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39591421704566465 [2023-01-28 07:30:33,079 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4283 transitions. [2023-01-28 07:30:33,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4283 transitions. [2023-01-28 07:30:33,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:30:33,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4283 transitions. [2023-01-28 07:30:33,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 713.8333333333334) internal successors, (4283), 6 states have internal predecessors, (4283), 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) [2023-01-28 07:30:33,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1803.0) internal successors, (12621), 7 states have internal predecessors, (12621), 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) [2023-01-28 07:30:33,102 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1803.0) internal successors, (12621), 7 states have internal predecessors, (12621), 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) [2023-01-28 07:30:33,102 INFO L175 Difference]: Start difference. First operand has 72 places, 66 transitions, 346 flow. Second operand 6 states and 4283 transitions. [2023-01-28 07:30:33,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 94 transitions, 609 flow [2023-01-28 07:30:33,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 94 transitions, 569 flow, removed 18 selfloop flow, removed 2 redundant places. [2023-01-28 07:30:33,106 INFO L231 Difference]: Finished difference. Result has 76 places, 67 transitions, 349 flow [2023-01-28 07:30:33,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1803, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=349, PETRI_PLACES=76, PETRI_TRANSITIONS=67} [2023-01-28 07:30:33,107 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 31 predicate places. [2023-01-28 07:30:33,107 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 67 transitions, 349 flow [2023-01-28 07:30:33,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 702.7142857142857) internal successors, (4919), 7 states have internal predecessors, (4919), 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) [2023-01-28 07:30:33,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:30:33,108 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:30:33,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-28 07:30:33,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:30:33,319 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-28 07:30:33,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:30:33,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1903990909, now seen corresponding path program 1 times [2023-01-28 07:30:33,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:30:33,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862612360] [2023-01-28 07:30:33,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:30:33,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:30:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:30:34,500 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:30:34,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:30:34,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862612360] [2023-01-28 07:30:34,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862612360] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:30:34,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061084733] [2023-01-28 07:30:34,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:30:34,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:30:34,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:30:34,502 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 07:30:34,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-28 07:30:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:30:36,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 1304 conjuncts, 27 conjunts are in the unsatisfiable core [2023-01-28 07:30:36,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:30:36,734 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:30:36,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:30:37,239 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:30:37,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061084733] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:30:37,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:30:37,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2023-01-28 07:30:37,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247899521] [2023-01-28 07:30:37,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:30:37,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-01-28 07:30:37,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:30:37,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-01-28 07:30:37,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=812, Unknown=0, NotChecked=0, Total=1122 [2023-01-28 07:30:37,259 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 802 out of 1803 [2023-01-28 07:30:37,293 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 67 transitions, 349 flow. Second operand has 34 states, 34 states have (on average 803.3529411764706) internal successors, (27314), 34 states have internal predecessors, (27314), 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) [2023-01-28 07:30:37,293 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:30:37,293 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 802 of 1803 [2023-01-28 07:30:37,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:30:56,270 WARN L222 SmtUtils]: Spent 6.06s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 07:31:10,482 INFO L130 PetriNetUnfolder]: 387/768 cut-off events. [2023-01-28 07:31:10,482 INFO L131 PetriNetUnfolder]: For 1472/1472 co-relation queries the response was YES. [2023-01-28 07:31:10,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1938 conditions, 768 events. 387/768 cut-off events. For 1472/1472 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3197 event pairs, 365 based on Foata normal form. 30/767 useless extension candidates. Maximal degree in co-relation 1919. Up to 736 conditions per place. [2023-01-28 07:31:10,485 INFO L137 encePairwiseOnDemand]: 1795/1803 looper letters, 50 selfloop transitions, 35 changer transitions 0/85 dead transitions. [2023-01-28 07:31:10,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 85 transitions, 615 flow [2023-01-28 07:31:10,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-01-28 07:31:10,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-01-28 07:31:10,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 19364 transitions. [2023-01-28 07:31:10,508 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44749491588093915 [2023-01-28 07:31:10,509 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 19364 transitions. [2023-01-28 07:31:10,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 19364 transitions. [2023-01-28 07:31:10,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:31:10,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 19364 transitions. [2023-01-28 07:31:10,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 806.8333333333334) internal successors, (19364), 24 states have internal predecessors, (19364), 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) [2023-01-28 07:31:10,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 1803.0) internal successors, (45075), 25 states have internal predecessors, (45075), 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) [2023-01-28 07:31:10,563 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 1803.0) internal successors, (45075), 25 states have internal predecessors, (45075), 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) [2023-01-28 07:31:10,563 INFO L175 Difference]: Start difference. First operand has 76 places, 67 transitions, 349 flow. Second operand 24 states and 19364 transitions. [2023-01-28 07:31:10,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 85 transitions, 615 flow [2023-01-28 07:31:10,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 85 transitions, 592 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-28 07:31:10,567 INFO L231 Difference]: Finished difference. Result has 107 places, 85 transitions, 614 flow [2023-01-28 07:31:10,567 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1803, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=614, PETRI_PLACES=107, PETRI_TRANSITIONS=85} [2023-01-28 07:31:10,568 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 62 predicate places. [2023-01-28 07:31:10,568 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 85 transitions, 614 flow [2023-01-28 07:31:10,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 803.3529411764706) internal successors, (27314), 34 states have internal predecessors, (27314), 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) [2023-01-28 07:31:10,571 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:31:10,571 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:31:10,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-28 07:31:10,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:31:10,783 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-28 07:31:10,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:31:10,783 INFO L85 PathProgramCache]: Analyzing trace with hash -39699523, now seen corresponding path program 2 times [2023-01-28 07:31:10,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:31:10,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691216630] [2023-01-28 07:31:10,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:31:10,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:31:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:31:12,579 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:31:12,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:31:12,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691216630] [2023-01-28 07:31:12,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691216630] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:31:12,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997512314] [2023-01-28 07:31:12,580 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 07:31:12,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:31:12,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:31:12,581 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 07:31:12,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-01-28 07:31:17,616 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 07:31:17,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:31:17,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 1508 conjuncts, 51 conjunts are in the unsatisfiable core [2023-01-28 07:31:17,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:31:18,301 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:31:18,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:31:19,839 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:31:19,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997512314] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:31:19,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:31:19,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 70 [2023-01-28 07:31:19,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726387712] [2023-01-28 07:31:19,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:31:19,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-01-28 07:31:19,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:31:19,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-01-28 07:31:19,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1221, Invalid=3749, Unknown=0, NotChecked=0, Total=4970 [2023-01-28 07:31:19,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 798 out of 1803 [2023-01-28 07:31:19,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 85 transitions, 614 flow. Second operand has 71 states, 71 states have (on average 799.169014084507) internal successors, (56741), 71 states have internal predecessors, (56741), 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) [2023-01-28 07:31:19,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:31:19,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 798 of 1803 [2023-01-28 07:31:19,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:31:31,069 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 [2023-01-28 07:31:33,078 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 [2023-01-28 07:32:42,239 WARN L222 SmtUtils]: Spent 27.65s 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) Received shutdown request... [2023-01-28 07:33:46,795 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 07:33:46,814 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 07:33:47,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-01-28 07:33:47,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-01-28 07:33:47,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 07:33:47,869 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack at de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.pop(UndoableWrapperScript.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.restore(UndoableWrapperScript.java:87) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:236) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:376) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.NestedWordAutomataUtils.getSuccessorState(NestedWordAutomataUtils.java:483) at de.uni_freiburg.informatik.ultimate.automata.petrinet.operations.DifferencePetriNet$DifferenceSuccessorTransitionProvider.getOrConstructTransition(DifferencePetriNet.java:279) at de.uni_freiburg.informatik.ultimate.automata.petrinet.operations.DifferencePetriNet$DifferenceSuccessorTransitionProvider.getTransitions(DifferencePetriNet.java:261) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PossibleExtensions.addFullyInstantiatedCandidate(PossibleExtensions.java:168) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PossibleExtensions.evolveCandidate(PossibleExtensions.java:195) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PossibleExtensions.update(PossibleExtensions.java:135) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.computeUnfoldingHelper(PetriNetUnfolder.java:209) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.computeUnfolding(PetriNetUnfolder.java:168) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.(PetriNetUnfolder.java:129) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:76) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:64) at de.uni_freiburg.informatik.ultimate.automata.petrinet.operations.DifferencePairwiseOnDemand.(DifferencePairwiseOnDemand.java:125) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.enhanceAnddeterminizeInterpolantAutomaton(CegarLoopForPetriNet.java:481) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.refineAbstraction(CegarLoopForPetriNet.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-01-28 07:33:47,872 INFO L158 Benchmark]: Toolchain (without parser) took 858051.00ms. Allocated memory was 494.9MB in the beginning and 1.4GB in the end (delta: 931.1MB). Free memory was 444.5MB in the beginning and 555.3MB in the end (delta: -110.8MB). Peak memory consumption was 824.0MB. Max. memory is 16.0GB. [2023-01-28 07:33:47,872 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 348.1MB. Free memory is still 295.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:33:47,872 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4061.48ms. Allocated memory is still 494.9MB. Free memory was 444.1MB in the beginning and 397.7MB in the end (delta: 46.4MB). Peak memory consumption was 163.9MB. Max. memory is 16.0GB. [2023-01-28 07:33:47,872 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.71ms. Allocated memory is still 494.9MB. Free memory was 397.7MB in the beginning and 386.2MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 07:33:47,873 INFO L158 Benchmark]: Boogie Preprocessor took 45.82ms. Allocated memory is still 494.9MB. Free memory was 386.2MB in the beginning and 379.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2023-01-28 07:33:47,873 INFO L158 Benchmark]: RCFGBuilder took 951.30ms. Allocated memory is still 494.9MB. Free memory was 379.9MB in the beginning and 306.5MB in the end (delta: 73.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.0GB. [2023-01-28 07:33:47,873 INFO L158 Benchmark]: TraceAbstraction took 852877.08ms. Allocated memory was 494.9MB in the beginning and 1.4GB in the end (delta: 931.1MB). Free memory was 305.5MB in the beginning and 555.3MB in the end (delta: -249.9MB). Peak memory consumption was 683.2MB. Max. memory is 16.0GB. [2023-01-28 07:33:47,874 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 348.1MB. Free memory is still 295.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 4061.48ms. Allocated memory is still 494.9MB. Free memory was 444.1MB in the beginning and 397.7MB in the end (delta: 46.4MB). Peak memory consumption was 163.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 111.71ms. Allocated memory is still 494.9MB. Free memory was 397.7MB in the beginning and 386.2MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Preprocessor took 45.82ms. Allocated memory is still 494.9MB. Free memory was 386.2MB in the beginning and 379.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * RCFGBuilder took 951.30ms. Allocated memory is still 494.9MB. Free memory was 379.9MB in the beginning and 306.5MB in the end (delta: 73.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.0GB. * TraceAbstraction took 852877.08ms. Allocated memory was 494.9MB in the beginning and 1.4GB in the end (delta: 931.1MB). Free memory was 305.5MB in the beginning and 555.3MB in the end (delta: -249.9MB). Peak memory consumption was 683.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 623.6s, 796 PlacesBefore, 45 PlacesAfterwards, 854 TransitionsBefore, 64 TransitionsAfterwards, 35388 CoEnabledTransitionPairs, 10 FixpointIterations, 552 TrivialSequentialCompositions, 222 ConcurrentSequentialCompositions, 84 TrivialYvCompositions, 42 ConcurrentYvCompositions, 39 ChoiceCompositions, 939 TotalNumberOfCompositions, 30501 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27371, independent: 27161, independent conditional: 0, independent unconditional: 27161, dependent: 210, dependent conditional: 0, dependent unconditional: 210, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 18704, independent: 18647, independent conditional: 0, independent unconditional: 18647, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 27371, independent: 8514, independent conditional: 0, independent unconditional: 8514, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 18704, unknown conditional: 0, unknown unconditional: 18704] , Statistics on independence cache: Total cache size (in pairs): 159, Positive cache size: 138, Positive conditional cache size: 0, Positive unconditional cache size: 138, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - ExceptionOrErrorResult: SMTLIBException: Not enough levels on assertion stack de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Not enough levels on assertion stack: de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown