/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_configure_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:23:56,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:23:56,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:23:56,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:23:56,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:23:56,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:23:56,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:23:56,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:23:56,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:23:56,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:23:56,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:23:56,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:23:56,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:23:56,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:23:56,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:23:56,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:23:56,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:23:56,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:23:56,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:23:56,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:23:56,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:23:56,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:23:56,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:23:56,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:23:56,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 07:23:56,209 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 07:23:56,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 07:23:56,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 07:23:56,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 07:23:56,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 07:23:56,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 07:23:56,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 07:23:56,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 07:23:56,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 07:23:56,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 07:23:56,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 07:23:56,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 07:23:56,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 07:23:56,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:23:56,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:23:56,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:23:56,215 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 07:23:56,235 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:23:56,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:23:56,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:23:56,237 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:23:56,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:23:56,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:23:56,237 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:23:56,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:23:56,237 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:23:56,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:23:56,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:23:56,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:23:56,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:23:56,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:23:56,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:23:56,238 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:23:56,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:23:56,239 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:23:56,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:23:56,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:23:56,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:23:56,239 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:23:56,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:23:56,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:23:56,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:23:56,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:23:56,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:23:56,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:23:56,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:23:56,240 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:23:56,240 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:23:56,240 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:23:56,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:23:56,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:23:56,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:23:56,407 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:23:56,407 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:23:56,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i [2023-01-28 07:23:57,336 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:23:57,645 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:23:57,645 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i [2023-01-28 07:23:57,671 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c40ab8c89/d14f9a3fa1a84d6bb0f2a13d6a666d37/FLAG18b3c4f84 [2023-01-28 07:23:57,684 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c40ab8c89/d14f9a3fa1a84d6bb0f2a13d6a666d37 [2023-01-28 07:23:57,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:23:57,687 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:23:57,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:23:57,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:23:57,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:23:57,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:23:57" (1/1) ... [2023-01-28 07:23:57,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21eb03e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:23:57, skipping insertion in model container [2023-01-28 07:23:57,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:23:57" (1/1) ... [2023-01-28 07:23:57,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:23:57,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:23:57,983 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_configure_pc8736x_gpio_set.i[5469,5482] [2023-01-28 07:23:59,716 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-28 07:24:00,081 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:24:00,081 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:24:00,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:24:00,173 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:24:00,195 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_configure_pc8736x_gpio_set.i[5469,5482] [2023-01-28 07:24:00,304 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-28 07:24:00,337 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:24:00,338 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:24:00,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:24:00,716 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:24:00,716 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:24:00,716 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:24:00,716 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:24:00,717 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:24:00,717 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:24:00,717 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:24:00,721 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:24:00,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:24:00 WrapperNode [2023-01-28 07:24:00,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:24:00,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:24:00,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:24:00,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:24:00,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:24:00" (1/1) ... [2023-01-28 07:24:00,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:24:00" (1/1) ... [2023-01-28 07:24:00,870 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 72, statements flattened = 800 [2023-01-28 07:24:00,871 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:24:00,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:24:00,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:24:00,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:24:00,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:24:00" (1/1) ... [2023-01-28 07:24:00,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:24:00" (1/1) ... [2023-01-28 07:24:00,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:24:00" (1/1) ... [2023-01-28 07:24:00,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:24:00" (1/1) ... [2023-01-28 07:24:00,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:24:00" (1/1) ... [2023-01-28 07:24:00,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:24:00" (1/1) ... [2023-01-28 07:24:00,932 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:24:00" (1/1) ... [2023-01-28 07:24:00,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:24:00" (1/1) ... [2023-01-28 07:24:00,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:24:00,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:24:00,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:24:00,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:24:00,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:24:00" (1/1) ... [2023-01-28 07:24:00,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:24:00,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:24:00,974 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 07:24:00,991 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 07:24:01,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:24:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-28 07:24:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:24:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-28 07:24:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:24:01,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:24:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-01-28 07:24:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:24:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-28 07:24:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:24:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_configure [2023-01-28 07:24:01,005 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_configure [2023-01-28 07:24:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 07:24:01,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:24:01,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 07:24:01,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-01-28 07:24:01,006 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-01-28 07:24:01,006 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-01-28 07:24:01,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:24:01,007 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 07:24:01,344 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:24:01,345 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:24:01,920 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:24:01,939 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:24:01,939 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2023-01-28 07:24:01,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:24:01 BoogieIcfgContainer [2023-01-28 07:24:01,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:24:01,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:24:01,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:24:01,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:24:01,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:23:57" (1/3) ... [2023-01-28 07:24:01,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f13526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:24:01, skipping insertion in model container [2023-01-28 07:24:01,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:24:00" (2/3) ... [2023-01-28 07:24:01,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f13526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:24:01, skipping insertion in model container [2023-01-28 07:24:01,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:24:01" (3/3) ... [2023-01-28 07:24:01,946 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i [2023-01-28 07:24:01,956 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:24:01,956 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-28 07:24:01,956 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:24:02,032 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-28 07:24:02,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 826 places, 877 transitions, 1770 flow [2023-01-28 07:24:02,239 INFO L130 PetriNetUnfolder]: 58/875 cut-off events. [2023-01-28 07:24:02,240 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 07:24:02,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 884 conditions, 875 events. 58/875 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1525 event pairs, 0 based on Foata normal form. 0/815 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-01-28 07:24:02,250 INFO L82 GeneralOperation]: Start removeDead. Operand has 826 places, 877 transitions, 1770 flow [2023-01-28 07:24:02,260 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 816 places, 867 transitions, 1743 flow [2023-01-28 07:24:02,263 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:24:02,279 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 816 places, 867 transitions, 1743 flow [2023-01-28 07:24:02,281 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 816 places, 867 transitions, 1743 flow [2023-01-28 07:24:02,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 816 places, 867 transitions, 1743 flow [2023-01-28 07:24:02,445 INFO L130 PetriNetUnfolder]: 58/867 cut-off events. [2023-01-28 07:24:02,445 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:24:02,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 867 events. 58/867 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1378 event pairs, 0 based on Foata normal form. 0/807 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-01-28 07:24:02,460 INFO L119 LiptonReduction]: Number of co-enabled transitions 38404 [2023-01-28 07:25:05,010 WARN L222 SmtUtils]: Spent 5.79s on a formula simplification that was a NOOP. DAG size: 289 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:25:10,542 WARN L222 SmtUtils]: Spent 5.53s on a formula simplification that was a NOOP. DAG size: 281 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:25:21,873 WARN L222 SmtUtils]: Spent 11.33s on a formula simplification. DAG size of input: 295 DAG size of output: 293 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:25:27,206 WARN L222 SmtUtils]: Spent 5.33s on a formula simplification that was a NOOP. DAG size: 284 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:28:10,239 WARN L222 SmtUtils]: Spent 2.43m on a formula simplification. DAG size of input: 677 DAG size of output: 675 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:28:38,732 WARN L222 SmtUtils]: Spent 28.47s 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 07:30:02,026 WARN L222 SmtUtils]: Spent 1.39m on a formula simplification. DAG size of input: 680 DAG size of output: 678 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:31:09,874 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 07:31:20,347 INFO L134 LiptonReduction]: Checked pairs total: 29151 [2023-01-28 07:31:20,348 INFO L136 LiptonReduction]: Total number of compositions: 955 [2023-01-28 07:31:20,357 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:31:20,359 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;@2930fd09, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:31:20,359 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-28 07:31:20,365 INFO L130 PetriNetUnfolder]: 6/12 cut-off events. [2023-01-28 07:31:20,365 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:31:20,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:31:20,366 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-28 07:31:20,366 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 2 more)] === [2023-01-28 07:31:20,369 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:31:20,369 INFO L85 PathProgramCache]: Analyzing trace with hash 3293283, now seen corresponding path program 1 times [2023-01-28 07:31:20,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:31:20,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899465636] [2023-01-28 07:31:20,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:31:20,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:31:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:31:20,703 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 07:31:20,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:31:20,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899465636] [2023-01-28 07:31:20,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899465636] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:31:20,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:31:20,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 07:31:20,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282656072] [2023-01-28 07:31:20,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:31:20,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-28 07:31:20,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:31:20,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-28 07:31:20,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-28 07:31:20,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 842 out of 1832 [2023-01-28 07:31:20,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 50 transitions, 109 flow. Second operand has 2 states, 2 states have (on average 843.5) internal successors, (1687), 2 states have internal predecessors, (1687), 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 07:31:20,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:31:20,733 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 842 of 1832 [2023-01-28 07:31:20,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:31:20,961 INFO L130 PetriNetUnfolder]: 88/178 cut-off events. [2023-01-28 07:31:20,961 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-01-28 07:31:20,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 178 events. 88/178 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 480 event pairs, 78 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 308. Up to 179 conditions per place. [2023-01-28 07:31:20,962 INFO L137 encePairwiseOnDemand]: 1820/1832 looper letters, 35 selfloop transitions, 0 changer transitions 3/38 dead transitions. [2023-01-28 07:31:20,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 38 transitions, 161 flow [2023-01-28 07:31:20,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-28 07:31:20,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-28 07:31:20,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1734 transitions. [2023-01-28 07:31:20,979 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4732532751091703 [2023-01-28 07:31:20,979 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1734 transitions. [2023-01-28 07:31:20,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1734 transitions. [2023-01-28 07:31:20,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:31:20,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1734 transitions. [2023-01-28 07:31:20,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 867.0) internal successors, (1734), 2 states have internal predecessors, (1734), 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 07:31:20,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1832.0) internal successors, (5496), 3 states have internal predecessors, (5496), 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 07:31:20,999 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1832.0) internal successors, (5496), 3 states have internal predecessors, (5496), 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 07:31:21,002 INFO L175 Difference]: Start difference. First operand has 36 places, 50 transitions, 109 flow. Second operand 2 states and 1734 transitions. [2023-01-28 07:31:21,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 38 transitions, 161 flow [2023-01-28 07:31:21,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 38 transitions, 156 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-28 07:31:21,009 INFO L231 Difference]: Finished difference. Result has 33 places, 35 transitions, 73 flow [2023-01-28 07:31:21,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=73, PETRI_PLACES=33, PETRI_TRANSITIONS=35} [2023-01-28 07:31:21,013 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2023-01-28 07:31:21,013 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 35 transitions, 73 flow [2023-01-28 07:31:21,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 843.5) internal successors, (1687), 2 states have internal predecessors, (1687), 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 07:31:21,014 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:31:21,015 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:31:21,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:31:21,015 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 07:31:21,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:31:21,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1951064947, now seen corresponding path program 1 times [2023-01-28 07:31:21,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:31:21,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079802920] [2023-01-28 07:31:21,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:31:21,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:31:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:31:21,762 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 07:31:21,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:31:21,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079802920] [2023-01-28 07:31:21,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079802920] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:31:21,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:31:21,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:31:21,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552977457] [2023-01-28 07:31:21,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:31:21,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:31:21,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:31:21,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:31:21,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:31:21,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 824 out of 1832 [2023-01-28 07:31:21,771 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 35 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 827.3333333333334) internal successors, (2482), 3 states have internal predecessors, (2482), 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 07:31:21,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:31:21,771 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 824 of 1832 [2023-01-28 07:31:21,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:31:22,030 INFO L130 PetriNetUnfolder]: 75/152 cut-off events. [2023-01-28 07:31:22,030 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:31:22,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 152 events. 75/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 391 event pairs, 65 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 321. Up to 152 conditions per place. [2023-01-28 07:31:22,031 INFO L137 encePairwiseOnDemand]: 1828/1832 looper letters, 34 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2023-01-28 07:31:22,031 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 36 transitions, 147 flow [2023-01-28 07:31:22,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:31:22,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:31:22,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2510 transitions. [2023-01-28 07:31:22,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4566957787481805 [2023-01-28 07:31:22,036 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2510 transitions. [2023-01-28 07:31:22,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2510 transitions. [2023-01-28 07:31:22,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:31:22,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2510 transitions. [2023-01-28 07:31:22,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 836.6666666666666) internal successors, (2510), 3 states have internal predecessors, (2510), 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 07:31:22,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1832.0) internal successors, (7328), 4 states have internal predecessors, (7328), 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 07:31:22,049 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1832.0) internal successors, (7328), 4 states have internal predecessors, (7328), 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 07:31:22,049 INFO L175 Difference]: Start difference. First operand has 33 places, 35 transitions, 73 flow. Second operand 3 states and 2510 transitions. [2023-01-28 07:31:22,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 36 transitions, 147 flow [2023-01-28 07:31:22,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 36 transitions, 147 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 07:31:22,051 INFO L231 Difference]: Finished difference. Result has 33 places, 36 transitions, 87 flow [2023-01-28 07:31:22,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=33, PETRI_TRANSITIONS=36} [2023-01-28 07:31:22,051 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2023-01-28 07:31:22,051 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 36 transitions, 87 flow [2023-01-28 07:31:22,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 827.3333333333334) internal successors, (2482), 3 states have internal predecessors, (2482), 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 07:31:22,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:31:22,053 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:31:22,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 07:31:22,053 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 07:31:22,054 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:31:22,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1865034357, now seen corresponding path program 1 times [2023-01-28 07:31:22,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:31:22,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053374218] [2023-01-28 07:31:22,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:31:22,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:31:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:31:22,959 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 07:31:22,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:31:22,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053374218] [2023-01-28 07:31:22,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053374218] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:31:22,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708902691] [2023-01-28 07:31:22,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:31:22,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:31:22,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:31:22,962 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 07:31:22,963 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 07:31:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:31:23,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 9 conjunts are in the unsatisfiable core [2023-01-28 07:31:23,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:31:24,000 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 07:31:24,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:31:24,255 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 07:31:24,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708902691] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:31:24,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:31:24,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-01-28 07:31:24,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138843674] [2023-01-28 07:31:24,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:31:24,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 07:31:24,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:31:24,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 07:31:24,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-01-28 07:31:24,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 820 out of 1832 [2023-01-28 07:31:24,266 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 36 transitions, 87 flow. Second operand has 8 states, 8 states have (on average 822.125) internal successors, (6577), 8 states have internal predecessors, (6577), 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 07:31:24,266 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:31:24,266 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 820 of 1832 [2023-01-28 07:31:24,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:31:24,705 INFO L130 PetriNetUnfolder]: 75/157 cut-off events. [2023-01-28 07:31:24,705 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:31:24,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 157 events. 75/157 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 409 event pairs, 65 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 340. Up to 152 conditions per place. [2023-01-28 07:31:24,706 INFO L137 encePairwiseOnDemand]: 1824/1832 looper letters, 33 selfloop transitions, 8 changer transitions 0/41 dead transitions. [2023-01-28 07:31:24,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 185 flow [2023-01-28 07:31:24,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 07:31:24,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 07:31:24,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4971 transitions. [2023-01-28 07:31:24,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45223799126637554 [2023-01-28 07:31:24,714 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4971 transitions. [2023-01-28 07:31:24,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4971 transitions. [2023-01-28 07:31:24,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:31:24,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4971 transitions. [2023-01-28 07:31:24,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 828.5) internal successors, (4971), 6 states have internal predecessors, (4971), 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 07:31:24,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1832.0) internal successors, (12824), 7 states have internal predecessors, (12824), 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 07:31:24,736 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1832.0) internal successors, (12824), 7 states have internal predecessors, (12824), 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 07:31:24,736 INFO L175 Difference]: Start difference. First operand has 33 places, 36 transitions, 87 flow. Second operand 6 states and 4971 transitions. [2023-01-28 07:31:24,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 185 flow [2023-01-28 07:31:24,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 181 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-28 07:31:24,738 INFO L231 Difference]: Finished difference. Result has 40 places, 41 transitions, 149 flow [2023-01-28 07:31:24,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=149, PETRI_PLACES=40, PETRI_TRANSITIONS=41} [2023-01-28 07:31:24,739 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 4 predicate places. [2023-01-28 07:31:24,739 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 41 transitions, 149 flow [2023-01-28 07:31:24,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 822.125) internal successors, (6577), 8 states have internal predecessors, (6577), 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 07:31:24,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:31:24,741 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:31:24,753 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 07:31:24,953 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 07:31:24,954 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 2 more)] === [2023-01-28 07:31:24,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:31:24,954 INFO L85 PathProgramCache]: Analyzing trace with hash 714763277, now seen corresponding path program 2 times [2023-01-28 07:31:24,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:31:24,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488042440] [2023-01-28 07:31:24,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:31:24,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:31:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:31:25,571 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 07:31:25,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:31:25,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488042440] [2023-01-28 07:31:25,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488042440] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:31:25,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101729050] [2023-01-28 07:31:25,571 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 07:31:25,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:31:25,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:31:25,572 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 07:31:25,574 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 07:31:26,802 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-28 07:31:26,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:31:26,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 22 conjunts are in the unsatisfiable core [2023-01-28 07:31:26,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:31:26,998 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-28 07:31:26,999 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 07:31:27,007 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 07:31:27,123 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 07:31:27,140 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 07:31:27,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 07:31:27,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101729050] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:31:27,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 07:31:27,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-01-28 07:31:27,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919018549] [2023-01-28 07:31:27,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:31:27,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 07:31:27,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:31:27,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 07:31:27,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-01-28 07:31:27,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 789 out of 1832 [2023-01-28 07:31:27,156 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 41 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 791.75) internal successors, (3167), 4 states have internal predecessors, (3167), 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 07:31:27,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:31:27,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 789 of 1832 [2023-01-28 07:31:27,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:31:27,771 INFO L130 PetriNetUnfolder]: 75/163 cut-off events. [2023-01-28 07:31:27,772 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 07:31:27,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 163 events. 75/163 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 447 event pairs, 40 based on Foata normal form. 8/164 useless extension candidates. Maximal degree in co-relation 377. Up to 107 conditions per place. [2023-01-28 07:31:27,772 INFO L137 encePairwiseOnDemand]: 1826/1832 looper letters, 45 selfloop transitions, 5 changer transitions 1/51 dead transitions. [2023-01-28 07:31:27,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 51 transitions, 275 flow [2023-01-28 07:31:27,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 07:31:27,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 07:31:27,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3202 transitions. [2023-01-28 07:31:27,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43695414847161573 [2023-01-28 07:31:27,779 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3202 transitions. [2023-01-28 07:31:27,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3202 transitions. [2023-01-28 07:31:27,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:31:27,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3202 transitions. [2023-01-28 07:31:27,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 800.5) internal successors, (3202), 4 states have internal predecessors, (3202), 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 07:31:27,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1832.0) internal successors, (9160), 5 states have internal predecessors, (9160), 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 07:31:27,791 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1832.0) internal successors, (9160), 5 states have internal predecessors, (9160), 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 07:31:27,791 INFO L175 Difference]: Start difference. First operand has 40 places, 41 transitions, 149 flow. Second operand 4 states and 3202 transitions. [2023-01-28 07:31:27,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 51 transitions, 275 flow [2023-01-28 07:31:27,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 51 transitions, 265 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-01-28 07:31:27,793 INFO L231 Difference]: Finished difference. Result has 43 places, 44 transitions, 167 flow [2023-01-28 07:31:27,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=167, PETRI_PLACES=43, PETRI_TRANSITIONS=44} [2023-01-28 07:31:27,793 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places. [2023-01-28 07:31:27,793 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 44 transitions, 167 flow [2023-01-28 07:31:27,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 791.75) internal successors, (3167), 4 states have internal predecessors, (3167), 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 07:31:27,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:31:27,794 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:31:27,820 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 07:31:28,003 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 07:31:28,004 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 2 more)] === [2023-01-28 07:31:28,004 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:31:28,004 INFO L85 PathProgramCache]: Analyzing trace with hash 682825850, now seen corresponding path program 1 times [2023-01-28 07:31:28,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:31:28,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305375248] [2023-01-28 07:31:28,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:31:28,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:31:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:31:28,892 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:31:28,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:31:28,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305375248] [2023-01-28 07:31:28,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305375248] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:31:28,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006200961] [2023-01-28 07:31:28,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:31:28,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:31:28,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:31:28,893 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 07:31:28,895 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 07:31:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:31:29,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 1175 conjuncts, 15 conjunts are in the unsatisfiable core [2023-01-28 07:31:29,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:31:29,848 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 07:31:29,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:31:30,054 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 07:31:30,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006200961] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:31:30,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:31:30,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-01-28 07:31:30,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138418240] [2023-01-28 07:31:30,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:31:30,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-01-28 07:31:30,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:31:30,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-01-28 07:31:30,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-01-28 07:31:30,063 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 820 out of 1832 [2023-01-28 07:31:30,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 44 transitions, 167 flow. Second operand has 17 states, 17 states have (on average 821.5882352941177) internal successors, (13967), 17 states have internal predecessors, (13967), 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 07:31:30,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:31:30,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 820 of 1832 [2023-01-28 07:31:30,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:31:32,095 INFO L130 PetriNetUnfolder]: 75/172 cut-off events. [2023-01-28 07:31:32,096 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2023-01-28 07:31:32,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 172 events. 75/172 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 481 event pairs, 57 based on Foata normal form. 9/174 useless extension candidates. Maximal degree in co-relation 476. Up to 158 conditions per place. [2023-01-28 07:31:32,097 INFO L137 encePairwiseOnDemand]: 1824/1832 looper letters, 36 selfloop transitions, 17 changer transitions 0/53 dead transitions. [2023-01-28 07:31:32,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 53 transitions, 321 flow [2023-01-28 07:31:32,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-28 07:31:32,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-28 07:31:32,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 9908 transitions. [2023-01-28 07:31:32,117 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4506914119359534 [2023-01-28 07:31:32,117 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 9908 transitions. [2023-01-28 07:31:32,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 9908 transitions. [2023-01-28 07:31:32,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:31:32,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 9908 transitions. [2023-01-28 07:31:32,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 825.6666666666666) internal successors, (9908), 12 states have internal predecessors, (9908), 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 07:31:32,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1832.0) internal successors, (23816), 13 states have internal predecessors, (23816), 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 07:31:32,153 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1832.0) internal successors, (23816), 13 states have internal predecessors, (23816), 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 07:31:32,153 INFO L175 Difference]: Start difference. First operand has 43 places, 44 transitions, 167 flow. Second operand 12 states and 9908 transitions. [2023-01-28 07:31:32,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 53 transitions, 321 flow [2023-01-28 07:31:32,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 53 transitions, 315 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 07:31:32,155 INFO L231 Difference]: Finished difference. Result has 58 places, 53 transitions, 305 flow [2023-01-28 07:31:32,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=305, PETRI_PLACES=58, PETRI_TRANSITIONS=53} [2023-01-28 07:31:32,156 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 22 predicate places. [2023-01-28 07:31:32,156 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 53 transitions, 305 flow [2023-01-28 07:31:32,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 821.5882352941177) internal successors, (13967), 17 states have internal predecessors, (13967), 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 07:31:32,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:31:32,159 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:31:32,169 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 07:31:32,369 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 07:31:32,369 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 2 more)] === [2023-01-28 07:31:32,369 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:31:32,369 INFO L85 PathProgramCache]: Analyzing trace with hash -607907526, now seen corresponding path program 2 times [2023-01-28 07:31:32,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:31:32,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964930651] [2023-01-28 07:31:32,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:31:32,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:31:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:31:33,757 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 07:31:33,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:31:33,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964930651] [2023-01-28 07:31:33,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964930651] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:31:33,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237491002] [2023-01-28 07:31:33,758 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 07:31:33,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:31:33,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:31:33,759 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 07:31:33,761 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 07:31:34,730 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-28 07:31:34,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:31:34,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 288 conjunts are in the unsatisfiable core [2023-01-28 07:31:34,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:31:34,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:34,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:34,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:34,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:34,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:34,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:34,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:34,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:34,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:34,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:34,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:35,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:35,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:35,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:35,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:35,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:35,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:35,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:35,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:35,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:35,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:35,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:35,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:31:40,522 WARN L222 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 1236 DAG size of output: 265 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-01-28 07:31:40,524 INFO L321 Elim1Store]: treesize reduction 9114, result has 6.0 percent of original size [2023-01-28 07:31:40,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 12 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 84 case distinctions, treesize of input 524 treesize of output 1020 [2023-01-28 07:31:58,950 INFO L321 Elim1Store]: treesize reduction 83, result has 27.2 percent of original size [2023-01-28 07:31:58,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 421 treesize of output 424 [2023-01-28 07:31:59,039 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-01-28 07:31:59,039 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 327 treesize of output 326 [2023-01-28 07:31:59,064 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 315 treesize of output 315 [2023-01-28 07:31:59,088 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 309 treesize of output 309 [2023-01-28 07:31:59,112 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 303 treesize of output 303 [2023-01-28 07:31:59,184 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-01-28 07:31:59,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2023-01-28 07:31:59,319 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 07:31:59,375 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 07:31:59,405 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 07:31:59,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 07:31:59,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237491002] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:31:59,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 07:31:59,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 17 [2023-01-28 07:31:59,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83637728] [2023-01-28 07:31:59,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:31:59,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 07:31:59,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:31:59,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 07:31:59,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2023-01-28 07:31:59,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 730 out of 1832 [2023-01-28 07:31:59,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 53 transitions, 305 flow. Second operand has 7 states, 7 states have (on average 731.7142857142857) internal successors, (5122), 7 states have internal predecessors, (5122), 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 07:31:59,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:31:59,412 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 730 of 1832 [2023-01-28 07:31:59,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:32:00,443 INFO L130 PetriNetUnfolder]: 71/165 cut-off events. [2023-01-28 07:32:00,443 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2023-01-28 07:32:00,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 165 events. 71/165 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 451 event pairs, 38 based on Foata normal form. 3/161 useless extension candidates. Maximal degree in co-relation 490. Up to 85 conditions per place. [2023-01-28 07:32:00,444 INFO L137 encePairwiseOnDemand]: 1819/1832 looper letters, 47 selfloop transitions, 13 changer transitions 1/61 dead transitions. [2023-01-28 07:32:00,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 61 transitions, 455 flow [2023-01-28 07:32:00,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 07:32:00,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 07:32:00,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4426 transitions. [2023-01-28 07:32:00,452 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4026564774381368 [2023-01-28 07:32:00,453 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4426 transitions. [2023-01-28 07:32:00,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4426 transitions. [2023-01-28 07:32:00,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:32:00,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4426 transitions. [2023-01-28 07:32:00,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 737.6666666666666) internal successors, (4426), 6 states have internal predecessors, (4426), 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 07:32:00,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1832.0) internal successors, (12824), 7 states have internal predecessors, (12824), 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 07:32:00,469 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1832.0) internal successors, (12824), 7 states have internal predecessors, (12824), 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 07:32:00,469 INFO L175 Difference]: Start difference. First operand has 58 places, 53 transitions, 305 flow. Second operand 6 states and 4426 transitions. [2023-01-28 07:32:00,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 61 transitions, 455 flow [2023-01-28 07:32:00,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 61 transitions, 415 flow, removed 18 selfloop flow, removed 2 redundant places. [2023-01-28 07:32:00,474 INFO L231 Difference]: Finished difference. Result has 62 places, 54 transitions, 303 flow [2023-01-28 07:32:00,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=303, PETRI_PLACES=62, PETRI_TRANSITIONS=54} [2023-01-28 07:32:00,476 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 26 predicate places. [2023-01-28 07:32:00,476 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 54 transitions, 303 flow [2023-01-28 07:32:00,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 731.7142857142857) internal successors, (5122), 7 states have internal predecessors, (5122), 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 07:32:00,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:32:00,477 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:32:00,489 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 07:32:00,689 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 07:32:00,689 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 2 more)] === [2023-01-28 07:32:00,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:32:00,689 INFO L85 PathProgramCache]: Analyzing trace with hash 261067698, now seen corresponding path program 1 times [2023-01-28 07:32:00,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:32:00,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442916195] [2023-01-28 07:32:00,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:32:00,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:32:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:32:02,368 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 07:32:02,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:32:02,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442916195] [2023-01-28 07:32:02,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442916195] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:32:02,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618218018] [2023-01-28 07:32:02,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:32:02,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:32:02,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:32:02,370 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 07:32:02,372 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 07:32:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:32:03,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 27 conjunts are in the unsatisfiable core [2023-01-28 07:32:03,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:32:03,864 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 07:32:03,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:32:04,325 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 07:32:04,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618218018] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:32:04,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:32:04,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2023-01-28 07:32:04,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038770376] [2023-01-28 07:32:04,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:32:04,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-01-28 07:32:04,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:32:04,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-01-28 07:32:04,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=874, Unknown=0, NotChecked=0, Total=1190 [2023-01-28 07:32:04,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 820 out of 1832 [2023-01-28 07:32:04,350 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 54 transitions, 303 flow. Second operand has 35 states, 35 states have (on average 821.3428571428572) internal successors, (28747), 35 states have internal predecessors, (28747), 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 07:32:04,350 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:32:04,350 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 820 of 1832 [2023-01-28 07:32:04,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:32:17,815 WARN L222 SmtUtils]: Spent 5.23s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 07:32:33,870 INFO L130 PetriNetUnfolder]: 71/183 cut-off events. [2023-01-28 07:32:33,870 INFO L131 PetriNetUnfolder]: For 1179/1179 co-relation queries the response was YES. [2023-01-28 07:32:33,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 183 events. 71/183 cut-off events. For 1179/1179 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 472 event pairs, 55 based on Foata normal form. 30/208 useless extension candidates. Maximal degree in co-relation 588. Up to 151 conditions per place. [2023-01-28 07:32:33,871 INFO L137 encePairwiseOnDemand]: 1824/1832 looper letters, 37 selfloop transitions, 35 changer transitions 0/72 dead transitions. [2023-01-28 07:32:33,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 72 transitions, 543 flow [2023-01-28 07:32:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-01-28 07:32:33,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-01-28 07:32:33,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 19784 transitions. [2023-01-28 07:32:33,892 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44996360989810774 [2023-01-28 07:32:33,892 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 19784 transitions. [2023-01-28 07:32:33,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 19784 transitions. [2023-01-28 07:32:33,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:32:33,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 19784 transitions. [2023-01-28 07:32:33,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 824.3333333333334) internal successors, (19784), 24 states have internal predecessors, (19784), 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 07:32:33,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 1832.0) internal successors, (45800), 25 states have internal predecessors, (45800), 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 07:32:33,955 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 1832.0) internal successors, (45800), 25 states have internal predecessors, (45800), 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 07:32:33,955 INFO L175 Difference]: Start difference. First operand has 62 places, 54 transitions, 303 flow. Second operand 24 states and 19784 transitions. [2023-01-28 07:32:33,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 72 transitions, 543 flow [2023-01-28 07:32:33,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 72 transitions, 521 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-28 07:32:33,958 INFO L231 Difference]: Finished difference. Result has 93 places, 72 transitions, 569 flow [2023-01-28 07:32:33,958 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=569, PETRI_PLACES=93, PETRI_TRANSITIONS=72} [2023-01-28 07:32:33,958 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 57 predicate places. [2023-01-28 07:32:33,958 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 72 transitions, 569 flow [2023-01-28 07:32:33,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 821.3428571428572) internal successors, (28747), 35 states have internal predecessors, (28747), 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 07:32:33,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:32:33,965 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:32:33,979 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 07:32:34,177 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 07:32:34,177 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 07:32:34,177 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:32:34,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1007318322, now seen corresponding path program 2 times [2023-01-28 07:32:34,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:32:34,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247584420] [2023-01-28 07:32:34,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:32:34,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:32:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:32:35,873 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 07:32:35,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:32:35,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247584420] [2023-01-28 07:32:35,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247584420] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:32:35,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39760838] [2023-01-28 07:32:35,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 07:32:35,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:32:35,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:32:35,874 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 07:32:35,875 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 07:32:36,976 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-28 07:32:36,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:32:36,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 27 conjunts are in the unsatisfiable core [2023-01-28 07:32:36,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:32:37,340 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 07:32:37,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:32:37,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 16 treesize of output 18 [2023-01-28 07:32:37,447 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-01-28 07:32:37,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 07:32:37,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39760838] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:32:37,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 07:32:37,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [24] total 28 [2023-01-28 07:32:37,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650938763] [2023-01-28 07:32:37,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:32:37,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 07:32:37,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:32:37,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 07:32:37,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2023-01-28 07:32:37,451 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 786 out of 1832 [2023-01-28 07:32:37,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 72 transitions, 569 flow. Second operand has 6 states, 6 states have (on average 788.3333333333334) internal successors, (4730), 6 states have internal predecessors, (4730), 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 07:32:37,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:32:37,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 786 of 1832 [2023-01-28 07:32:37,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:32:37,953 INFO L130 PetriNetUnfolder]: 71/187 cut-off events. [2023-01-28 07:32:37,954 INFO L131 PetriNetUnfolder]: For 305/305 co-relation queries the response was YES. [2023-01-28 07:32:37,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 187 events. 71/187 cut-off events. For 305/305 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 498 event pairs, 44 based on Foata normal form. 4/184 useless extension candidates. Maximal degree in co-relation 672. Up to 133 conditions per place. [2023-01-28 07:32:37,955 INFO L137 encePairwiseOnDemand]: 1827/1832 looper letters, 64 selfloop transitions, 4 changer transitions 12/80 dead transitions. [2023-01-28 07:32:37,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 80 transitions, 759 flow [2023-01-28 07:32:37,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 07:32:37,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 07:32:37,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3976 transitions. [2023-01-28 07:32:37,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.434061135371179 [2023-01-28 07:32:37,960 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3976 transitions. [2023-01-28 07:32:37,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3976 transitions. [2023-01-28 07:32:37,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:32:37,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3976 transitions. [2023-01-28 07:32:37,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 795.2) internal successors, (3976), 5 states have internal predecessors, (3976), 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 07:32:37,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1832.0) internal successors, (10992), 6 states have internal predecessors, (10992), 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 07:32:37,968 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1832.0) internal successors, (10992), 6 states have internal predecessors, (10992), 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 07:32:37,968 INFO L175 Difference]: Start difference. First operand has 93 places, 72 transitions, 569 flow. Second operand 5 states and 3976 transitions. [2023-01-28 07:32:37,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 80 transitions, 759 flow [2023-01-28 07:32:37,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 80 transitions, 675 flow, removed 35 selfloop flow, removed 6 redundant places. [2023-01-28 07:32:37,973 INFO L231 Difference]: Finished difference. Result has 92 places, 68 transitions, 475 flow [2023-01-28 07:32:37,973 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=475, PETRI_PLACES=92, PETRI_TRANSITIONS=68} [2023-01-28 07:32:37,974 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 56 predicate places. [2023-01-28 07:32:37,974 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 68 transitions, 475 flow [2023-01-28 07:32:37,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 788.3333333333334) internal successors, (4730), 6 states have internal predecessors, (4730), 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 07:32:37,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:32:37,974 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:32:37,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-01-28 07:32:38,186 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 07:32:38,186 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 07:32:38,187 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:32:38,187 INFO L85 PathProgramCache]: Analyzing trace with hash 661977512, now seen corresponding path program 3 times [2023-01-28 07:32:38,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:32:38,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371582254] [2023-01-28 07:32:38,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:32:38,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:32:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:32:40,140 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 07:32:40,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:32:40,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371582254] [2023-01-28 07:32:40,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371582254] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:32:40,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965904400] [2023-01-28 07:32:40,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-28 07:32:40,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:32:40,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:32:40,142 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 07:32:40,144 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 07:32:41,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-01-28 07:32:41,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:32:41,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 496 conjunts are in the unsatisfiable core [2023-01-28 07:32:41,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:32:41,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:32:41,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:32:41,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:32:41,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:32:41,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:32:41,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:32:41,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:32:41,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:33:02,574 WARN L222 SmtUtils]: Spent 20.64s on a formula simplification. DAG size of input: 2564 DAG size of output: 522 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-01-28 07:33:02,575 INFO L321 Elim1Store]: treesize reduction 18916, result has 4.9 percent of original size [2023-01-28 07:33:02,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 28 select indices, 28 select index equivalence classes, 33 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 397 case distinctions, treesize of input 1034 treesize of output 1881 [2023-01-28 07:34:14,479 INFO L321 Elim1Store]: treesize reduction 870, result has 28.7 percent of original size [2023-01-28 07:34:14,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 36 disjoint index pairs (out of 105 index pairs), introduced 16 new quantified variables, introduced 93 case distinctions, treesize of input 801 treesize of output 1040 [2023-01-28 07:34:14,770 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-01-28 07:34:14,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 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 07:34:14,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 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 07:34:14,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 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 07:34:15,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 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 07:37:36,290 WARN L222 SmtUtils]: Spent 12.34s on a formula simplification. DAG size of input: 658 DAG size of output: 772 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-01-28 07:37:41,998 WARN L222 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 633 DAG size of output: 498 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-01-28 07:37:47,838 WARN L238 SmtUtils]: Removed 2 from assertion stack [2023-01-28 07:37:47,840 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-28 07:37:47,852 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 07:37:47,863 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 07:37:47,868 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 07:37:48,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:37:48,041 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 36 with TraceHistMax 22,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 2ms.. [2023-01-28 07:37:48,042 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-01-28 07:37:48,042 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-01-28 07:37:48,042 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-01-28 07:37:48,042 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-01-28 07:37:48,043 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1] [2023-01-28 07:37:48,045 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 07:37:48,045 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 07:37:48,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 07:37:48 BasicIcfg [2023-01-28 07:37:48,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 07:37:48,047 INFO L158 Benchmark]: Toolchain (without parser) took 830360.29ms. Allocated memory was 348.1MB in the beginning and 1.3GB in the end (delta: 956.3MB). Free memory was 286.6MB in the beginning and 935.4MB in the end (delta: -648.9MB). Peak memory consumption was 852.0MB. Max. memory is 16.0GB. [2023-01-28 07:37:48,047 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 255.9MB. Free memory is still 213.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:37:48,047 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3033.03ms. Allocated memory was 348.1MB in the beginning and 434.1MB in the end (delta: 86.0MB). Free memory was 286.3MB in the beginning and 349.0MB in the end (delta: -62.7MB). Peak memory consumption was 99.6MB. Max. memory is 16.0GB. [2023-01-28 07:37:48,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 148.34ms. Allocated memory is still 434.1MB. Free memory was 347.9MB in the beginning and 336.4MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 07:37:48,048 INFO L158 Benchmark]: Boogie Preprocessor took 78.50ms. Allocated memory is still 434.1MB. Free memory was 336.4MB in the beginning and 330.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2023-01-28 07:37:48,048 INFO L158 Benchmark]: RCFGBuilder took 990.07ms. Allocated memory is still 434.1MB. Free memory was 330.1MB in the beginning and 252.5MB in the end (delta: 77.6MB). Peak memory consumption was 77.6MB. Max. memory is 16.0GB. [2023-01-28 07:37:48,048 INFO L158 Benchmark]: TraceAbstraction took 826104.60ms. Allocated memory was 434.1MB in the beginning and 1.3GB in the end (delta: 870.3MB). Free memory was 251.5MB in the beginning and 935.4MB in the end (delta: -684.0MB). Peak memory consumption was 728.8MB. Max. memory is 16.0GB. [2023-01-28 07:37:48,049 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 255.9MB. Free memory is still 213.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 3033.03ms. Allocated memory was 348.1MB in the beginning and 434.1MB in the end (delta: 86.0MB). Free memory was 286.3MB in the beginning and 349.0MB in the end (delta: -62.7MB). Peak memory consumption was 99.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 148.34ms. Allocated memory is still 434.1MB. Free memory was 347.9MB in the beginning and 336.4MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Preprocessor took 78.50ms. Allocated memory is still 434.1MB. Free memory was 336.4MB in the beginning and 330.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * RCFGBuilder took 990.07ms. Allocated memory is still 434.1MB. Free memory was 330.1MB in the beginning and 252.5MB in the end (delta: 77.6MB). Peak memory consumption was 77.6MB. Max. memory is 16.0GB. * TraceAbstraction took 826104.60ms. Allocated memory was 434.1MB in the beginning and 1.3GB in the end (delta: 870.3MB). Free memory was 251.5MB in the beginning and 935.4MB in the end (delta: -684.0MB). Peak memory consumption was 728.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 438.1s, 816 PlacesBefore, 36 PlacesAfterwards, 867 TransitionsBefore, 50 TransitionsAfterwards, 38404 CoEnabledTransitionPairs, 11 FixpointIterations, 561 TrivialSequentialCompositions, 247 ConcurrentSequentialCompositions, 81 TrivialYvCompositions, 29 ConcurrentYvCompositions, 37 ChoiceCompositions, 955 TotalNumberOfCompositions, 29151 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26720, independent: 26595, independent conditional: 0, independent unconditional: 26595, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 19621, independent: 19580, independent conditional: 0, independent unconditional: 19580, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 26720, independent: 7015, independent conditional: 0, independent unconditional: 7015, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 19621, unknown conditional: 0, unknown unconditional: 19621] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 36 with TraceHistMax 22,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 2ms.. - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 36 with TraceHistMax 22,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 2ms.. - TimeoutResultAtElement [Line: 7069]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 36 with TraceHistMax 22,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 2ms.. - TimeoutResultAtElement [Line: 7068]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 36 with TraceHistMax 22,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 2ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 1070 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 826.0s, OverallIterations: 9, TraceHistogramMax: 22, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 35.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 438.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 7.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 7.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 145 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1854 IncrementalHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 145 mSolverCounterUnsat, 0 mSDtfsCounter, 1854 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 248 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 28.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=569occurred in iteration=7, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 7.5s SatisfiabilityAnalysisTime, 31.5s InterpolantComputationTime, 251 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 283 ConstructedInterpolants, 0 QuantifiedInterpolants, 2234 SizeOfPredicates, 159 NumberOfNonLiveVariables, 7019 ConjunctsInSsa, 388 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 318/834 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown