/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_current_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:27:00,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:27:00,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:27:00,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:27:00,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:27:00,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:27:00,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:27:00,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:27:00,995 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:27:00,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:27:01,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:27:01,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:27:01,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:27:01,004 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:27:01,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:27:01,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:27:01,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:27:01,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:27:01,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:27:01,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:27:01,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:27:01,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:27:01,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:27:01,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:27:01,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 07:27:01,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 07:27:01,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 07:27:01,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 07:27:01,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 07:27:01,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 07:27:01,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 07:27:01,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 07:27:01,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 07:27:01,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 07:27:01,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 07:27:01,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 07:27:01,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 07:27:01,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 07:27:01,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:27:01,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:27:01,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:27:01,030 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 07:27:01,056 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:27:01,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:27:01,057 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:27:01,057 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:27:01,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:27:01,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:27:01,058 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:27:01,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:27:01,058 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:27:01,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:27:01,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:27:01,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:27:01,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:27:01,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:27:01,059 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:27:01,059 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:27:01,059 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:27:01,060 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:27:01,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:27:01,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:27:01,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:27:01,060 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:27:01,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:27:01,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:27:01,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:27:01,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:27:01,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:27:01,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:27:01,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:27:01,061 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:27:01,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:27:01,061 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:27:01,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:27:01,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:27:01,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:27:01,309 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:27:01,310 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:27:01,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i [2023-01-28 07:27:02,329 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:27:02,779 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:27:02,781 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i [2023-01-28 07:27:02,821 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c9d8f53b/bc3ad3cbb5aa4408bb0950d65ae13b69/FLAG7a3655ce2 [2023-01-28 07:27:02,835 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c9d8f53b/bc3ad3cbb5aa4408bb0950d65ae13b69 [2023-01-28 07:27:02,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:27:02,839 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:27:02,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:27:02,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:27:02,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:27:02,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:27:02" (1/1) ... [2023-01-28 07:27:02,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eeea415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:02, skipping insertion in model container [2023-01-28 07:27:02,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:27:02" (1/1) ... [2023-01-28 07:27:02,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:27:02,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:27:03,249 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i[5469,5482] [2023-01-28 07:27:05,547 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-28 07:27:06,053 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:27:06,056 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:27:06,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:27:06,141 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:27:06,164 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i[5469,5482] [2023-01-28 07:27:06,287 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-28 07:27:06,387 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:27:06,387 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:27:06,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:27:06,857 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:27:06,857 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:27:06,857 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:27:06,857 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:27:06,858 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:27:06,858 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:27:06,858 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:27:06,863 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:27:06,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:06 WrapperNode [2023-01-28 07:27:06,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:27:06,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:27:06,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:27:06,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:27:06,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:06" (1/1) ... [2023-01-28 07:27:06,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:06" (1/1) ... [2023-01-28 07:27:07,044 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 51, statements flattened = 693 [2023-01-28 07:27:07,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:27:07,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:27:07,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:27:07,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:27:07,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:06" (1/1) ... [2023-01-28 07:27:07,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:06" (1/1) ... [2023-01-28 07:27:07,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:06" (1/1) ... [2023-01-28 07:27:07,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:06" (1/1) ... [2023-01-28 07:27:07,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:06" (1/1) ... [2023-01-28 07:27:07,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:06" (1/1) ... [2023-01-28 07:27:07,105 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:06" (1/1) ... [2023-01-28 07:27:07,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:06" (1/1) ... [2023-01-28 07:27:07,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:27:07,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:27:07,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:27:07,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:27:07,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:06" (1/1) ... [2023-01-28 07:27:07,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:27:07,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:27:07,166 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 07:27:07,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:27:07,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-28 07:27:07,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:27:07,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-28 07:27:07,196 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-01-28 07:27:07,196 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-01-28 07:27:07,173 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 07:27:07,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:27:07,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:27:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-01-28 07:27:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:27:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-28 07:27:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:27:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:27:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-01-28 07:27:07,197 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-01-28 07:27:07,198 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-01-28 07:27:07,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:27:07,199 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 07:27:07,696 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:27:07,697 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:27:08,381 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:27:08,390 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:27:08,391 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2023-01-28 07:27:08,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:27:08 BoogieIcfgContainer [2023-01-28 07:27:08,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:27:08,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:27:08,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:27:08,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:27:08,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:27:02" (1/3) ... [2023-01-28 07:27:08,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f5b45a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:27:08, skipping insertion in model container [2023-01-28 07:27:08,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:06" (2/3) ... [2023-01-28 07:27:08,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f5b45a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:27:08, skipping insertion in model container [2023-01-28 07:27:08,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:27:08" (3/3) ... [2023-01-28 07:27:08,401 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i [2023-01-28 07:27:08,414 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:27:08,414 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-01-28 07:27:08,415 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:27:08,528 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-28 07:27:08,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 709 places, 754 transitions, 1524 flow [2023-01-28 07:27:08,775 INFO L130 PetriNetUnfolder]: 52/752 cut-off events. [2023-01-28 07:27:08,775 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 07:27:08,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 761 conditions, 752 events. 52/752 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 988 event pairs, 0 based on Foata normal form. 0/697 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-01-28 07:27:08,782 INFO L82 GeneralOperation]: Start removeDead. Operand has 709 places, 754 transitions, 1524 flow [2023-01-28 07:27:08,790 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 699 places, 744 transitions, 1497 flow [2023-01-28 07:27:08,793 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:27:08,800 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 699 places, 744 transitions, 1497 flow [2023-01-28 07:27:08,802 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 699 places, 744 transitions, 1497 flow [2023-01-28 07:27:08,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 699 places, 744 transitions, 1497 flow [2023-01-28 07:27:08,913 INFO L130 PetriNetUnfolder]: 52/744 cut-off events. [2023-01-28 07:27:08,913 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:27:08,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 744 events. 52/744 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 940 event pairs, 0 based on Foata normal form. 0/689 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-01-28 07:27:08,920 INFO L119 LiptonReduction]: Number of co-enabled transitions 9868 [2023-01-28 07:27:56,446 WARN L222 SmtUtils]: Spent 6.85s on a formula simplification that was a NOOP. DAG size: 227 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:28:25,291 WARN L222 SmtUtils]: Spent 7.01s on a formula simplification that was a NOOP. DAG size: 299 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:28:31,677 WARN L222 SmtUtils]: Spent 6.38s on a formula simplification that was a NOOP. DAG size: 285 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:28:46,840 WARN L222 SmtUtils]: Spent 15.16s on a formula simplification. DAG size of input: 305 DAG size of output: 303 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:28:52,875 WARN L222 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 288 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:30:07,407 WARN L222 SmtUtils]: Spent 1.22m on a formula simplification. DAG size of input: 655 DAG size of output: 653 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:30:38,361 WARN L222 SmtUtils]: Spent 30.93s 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 07:33:01,362 WARN L222 SmtUtils]: Spent 2.38m on a formula simplification. DAG size of input: 658 DAG size of output: 656 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:34:03,694 WARN L222 SmtUtils]: Spent 1.04m 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 07:34:27,022 WARN L222 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 298 DAG size of output: 287 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:34:28,879 INFO L134 LiptonReduction]: Checked pairs total: 9086 [2023-01-28 07:34:28,879 INFO L136 LiptonReduction]: Total number of compositions: 836 [2023-01-28 07:34:28,890 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:34:28,893 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;@38952400, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:34:28,893 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-01-28 07:34:28,902 INFO L130 PetriNetUnfolder]: 8/15 cut-off events. [2023-01-28 07:34:28,902 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:34:28,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:34:28,903 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-28 07:34:28,903 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 07:34:28,906 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:34:28,907 INFO L85 PathProgramCache]: Analyzing trace with hash 2741278, now seen corresponding path program 1 times [2023-01-28 07:34:28,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:34:28,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680399220] [2023-01-28 07:34:28,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:34:28,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:34:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:34:29,538 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 07:34:29,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:34:29,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680399220] [2023-01-28 07:34:29,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680399220] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:34:29,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:34:29,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 07:34:29,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701305062] [2023-01-28 07:34:29,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:34:29,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-28 07:34:29,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:34:29,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-28 07:34:29,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-28 07:34:29,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 718 out of 1590 [2023-01-28 07:34:29,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 52 transitions, 113 flow. Second operand has 2 states, 2 states have (on average 719.5) internal successors, (1439), 2 states have internal predecessors, (1439), 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 07:34:29,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:34:29,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 718 of 1590 [2023-01-28 07:34:29,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:34:30,030 INFO L130 PetriNetUnfolder]: 115/225 cut-off events. [2023-01-28 07:34:30,031 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-01-28 07:34:30,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 225 events. 115/225 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 668 event pairs, 105 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 394. Up to 226 conditions per place. [2023-01-28 07:34:30,033 INFO L137 encePairwiseOnDemand]: 1577/1590 looper letters, 39 selfloop transitions, 0 changer transitions 0/39 dead transitions. [2023-01-28 07:34:30,033 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 39 transitions, 165 flow [2023-01-28 07:34:30,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-28 07:34:30,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-28 07:34:30,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1488 transitions. [2023-01-28 07:34:30,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4679245283018868 [2023-01-28 07:34:30,051 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1488 transitions. [2023-01-28 07:34:30,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1488 transitions. [2023-01-28 07:34:30,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:34:30,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1488 transitions. [2023-01-28 07:34:30,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 744.0) internal successors, (1488), 2 states have internal predecessors, (1488), 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 07:34:30,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1590.0) internal successors, (4770), 3 states have internal predecessors, (4770), 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 07:34:30,075 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1590.0) internal successors, (4770), 3 states have internal predecessors, (4770), 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 07:34:30,079 INFO L175 Difference]: Start difference. First operand has 37 places, 52 transitions, 113 flow. Second operand 2 states and 1488 transitions. [2023-01-28 07:34:30,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 39 transitions, 165 flow [2023-01-28 07:34:30,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 39 transitions, 160 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-28 07:34:30,088 INFO L231 Difference]: Finished difference. Result has 34 places, 39 transitions, 82 flow [2023-01-28 07:34:30,090 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1590, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=34, PETRI_TRANSITIONS=39} [2023-01-28 07:34:30,093 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -3 predicate places. [2023-01-28 07:34:30,093 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 39 transitions, 82 flow [2023-01-28 07:34:30,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 719.5) internal successors, (1439), 2 states have internal predecessors, (1439), 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 07:34:30,095 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:34:30,095 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:34:30,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:34:30,095 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 07:34:30,103 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:34:30,103 INFO L85 PathProgramCache]: Analyzing trace with hash -950288402, now seen corresponding path program 1 times [2023-01-28 07:34:30,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:34:30,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009818209] [2023-01-28 07:34:30,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:34:30,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:34:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:34:30,860 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 07:34:30,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:34:30,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009818209] [2023-01-28 07:34:30,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009818209] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:34:30,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:34:30,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:34:30,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466327433] [2023-01-28 07:34:30,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:34:30,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:34:30,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:34:30,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:34:30,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:34:30,869 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 1590 [2023-01-28 07:34:30,871 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 39 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 702.3333333333334) internal successors, (2107), 3 states have internal predecessors, (2107), 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 07:34:30,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:34:30,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 1590 [2023-01-28 07:34:30,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:34:31,145 INFO L130 PetriNetUnfolder]: 115/226 cut-off events. [2023-01-28 07:34:31,145 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:34:31,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 226 events. 115/226 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 668 event pairs, 105 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 471. Up to 226 conditions per place. [2023-01-28 07:34:31,147 INFO L137 encePairwiseOnDemand]: 1586/1590 looper letters, 38 selfloop transitions, 2 changer transitions 0/40 dead transitions. [2023-01-28 07:34:31,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 40 transitions, 164 flow [2023-01-28 07:34:31,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:34:31,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:34:31,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2142 transitions. [2023-01-28 07:34:31,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4490566037735849 [2023-01-28 07:34:31,152 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2142 transitions. [2023-01-28 07:34:31,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2142 transitions. [2023-01-28 07:34:31,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:34:31,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2142 transitions. [2023-01-28 07:34:31,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 714.0) internal successors, (2142), 3 states have internal predecessors, (2142), 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 07:34:31,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1590.0) internal successors, (6360), 4 states have internal predecessors, (6360), 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 07:34:31,168 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1590.0) internal successors, (6360), 4 states have internal predecessors, (6360), 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 07:34:31,168 INFO L175 Difference]: Start difference. First operand has 34 places, 39 transitions, 82 flow. Second operand 3 states and 2142 transitions. [2023-01-28 07:34:31,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 40 transitions, 164 flow [2023-01-28 07:34:31,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 07:34:31,170 INFO L231 Difference]: Finished difference. Result has 37 places, 40 transitions, 96 flow [2023-01-28 07:34:31,170 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1590, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=37, PETRI_TRANSITIONS=40} [2023-01-28 07:34:31,171 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 0 predicate places. [2023-01-28 07:34:31,171 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 40 transitions, 96 flow [2023-01-28 07:34:31,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 702.3333333333334) internal successors, (2107), 3 states have internal predecessors, (2107), 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 07:34:31,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:34:31,172 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:34:31,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 07:34:31,173 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 07:34:31,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:34:31,175 INFO L85 PathProgramCache]: Analyzing trace with hash 222415740, now seen corresponding path program 1 times [2023-01-28 07:34:31,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:34:31,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205518327] [2023-01-28 07:34:31,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:34:31,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:34:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:34:31,804 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 07:34:31,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:34:31,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205518327] [2023-01-28 07:34:31,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205518327] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:34:31,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782625005] [2023-01-28 07:34:31,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:34:31,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:34:31,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:34:31,811 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 07:34:31,839 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 07:34:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:34:32,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 12 conjunts are in the unsatisfiable core [2023-01-28 07:34:32,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:34:32,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 07:34:32,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 07:34:32,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782625005] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:34:32,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 07:34:32,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-01-28 07:34:32,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726229129] [2023-01-28 07:34:32,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:34:32,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:34:32,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:34:32,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:34:32,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 07:34:32,324 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 667 out of 1590 [2023-01-28 07:34:32,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 40 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 669.6666666666666) internal successors, (2009), 3 states have internal predecessors, (2009), 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 07:34:32,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:34:32,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 667 of 1590 [2023-01-28 07:34:32,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:34:32,737 INFO L130 PetriNetUnfolder]: 107/222 cut-off events. [2023-01-28 07:34:32,737 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 07:34:32,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 222 events. 107/222 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 720 event pairs, 39 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 469. Up to 133 conditions per place. [2023-01-28 07:34:32,739 INFO L137 encePairwiseOnDemand]: 1587/1590 looper letters, 47 selfloop transitions, 2 changer transitions 3/52 dead transitions. [2023-01-28 07:34:32,739 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 52 transitions, 225 flow [2023-01-28 07:34:32,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:34:32,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:34:32,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2053 transitions. [2023-01-28 07:34:32,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43039832285115304 [2023-01-28 07:34:32,744 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2053 transitions. [2023-01-28 07:34:32,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2053 transitions. [2023-01-28 07:34:32,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:34:32,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2053 transitions. [2023-01-28 07:34:32,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 684.3333333333334) internal successors, (2053), 3 states have internal predecessors, (2053), 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 07:34:32,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1590.0) internal successors, (6360), 4 states have internal predecessors, (6360), 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 07:34:32,759 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1590.0) internal successors, (6360), 4 states have internal predecessors, (6360), 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 07:34:32,759 INFO L175 Difference]: Start difference. First operand has 37 places, 40 transitions, 96 flow. Second operand 3 states and 2053 transitions. [2023-01-28 07:34:32,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 52 transitions, 225 flow [2023-01-28 07:34:32,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 52 transitions, 221 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-28 07:34:32,761 INFO L231 Difference]: Finished difference. Result has 39 places, 41 transitions, 104 flow [2023-01-28 07:34:32,761 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1590, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=39, PETRI_TRANSITIONS=41} [2023-01-28 07:34:32,762 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 2 predicate places. [2023-01-28 07:34:32,762 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 41 transitions, 104 flow [2023-01-28 07:34:32,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 669.6666666666666) internal successors, (2009), 3 states have internal predecessors, (2009), 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 07:34:32,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:34:32,764 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:34:32,775 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 07:34:32,972 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 07:34:32,973 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 07:34:32,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:34:32,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1331810217, now seen corresponding path program 1 times [2023-01-28 07:34:32,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:34:32,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548637476] [2023-01-28 07:34:32,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:34:32,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:34:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:34:33,633 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 07:34:33,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:34:33,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548637476] [2023-01-28 07:34:33,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548637476] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:34:33,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016417729] [2023-01-28 07:34:33,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:34:33,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:34:33,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:34:33,635 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 07:34:33,637 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 07:34:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:34:34,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 9 conjunts are in the unsatisfiable core [2023-01-28 07:34:34,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:34:34,957 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 07:34:34,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:34:35,225 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 07:34:35,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016417729] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:34:35,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:34:35,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-01-28 07:34:35,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201481671] [2023-01-28 07:34:35,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:34:35,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 07:34:35,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:34:35,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 07:34:35,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-01-28 07:34:35,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 1590 [2023-01-28 07:34:35,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 41 transitions, 104 flow. Second operand has 8 states, 8 states have (on average 702.125) internal successors, (5617), 8 states have internal predecessors, (5617), 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 07:34:35,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:34:35,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 1590 [2023-01-28 07:34:35,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:34:35,670 INFO L130 PetriNetUnfolder]: 107/227 cut-off events. [2023-01-28 07:34:35,670 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2023-01-28 07:34:35,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 227 events. 107/227 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 703 event pairs, 97 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 520. Up to 222 conditions per place. [2023-01-28 07:34:35,672 INFO L137 encePairwiseOnDemand]: 1582/1590 looper letters, 38 selfloop transitions, 8 changer transitions 0/46 dead transitions. [2023-01-28 07:34:35,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 46 transitions, 212 flow [2023-01-28 07:34:35,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 07:34:35,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 07:34:35,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4255 transitions. [2023-01-28 07:34:35,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4460167714884696 [2023-01-28 07:34:35,681 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4255 transitions. [2023-01-28 07:34:35,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4255 transitions. [2023-01-28 07:34:35,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:34:35,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4255 transitions. [2023-01-28 07:34:35,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 709.1666666666666) internal successors, (4255), 6 states have internal predecessors, (4255), 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 07:34:35,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1590.0) internal successors, (11130), 7 states have internal predecessors, (11130), 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 07:34:35,707 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1590.0) internal successors, (11130), 7 states have internal predecessors, (11130), 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 07:34:35,707 INFO L175 Difference]: Start difference. First operand has 39 places, 41 transitions, 104 flow. Second operand 6 states and 4255 transitions. [2023-01-28 07:34:35,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 46 transitions, 212 flow [2023-01-28 07:34:35,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 46 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 07:34:35,709 INFO L231 Difference]: Finished difference. Result has 46 places, 46 transitions, 168 flow [2023-01-28 07:34:35,709 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1590, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=168, PETRI_PLACES=46, PETRI_TRANSITIONS=46} [2023-01-28 07:34:35,710 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 9 predicate places. [2023-01-28 07:34:35,710 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 46 transitions, 168 flow [2023-01-28 07:34:35,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 702.125) internal successors, (5617), 8 states have internal predecessors, (5617), 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 07:34:35,712 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:34:35,712 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:34:35,728 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 07:34:35,922 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 07:34:35,923 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 07:34:35,923 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:34:35,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1702325029, now seen corresponding path program 2 times [2023-01-28 07:34:35,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:34:35,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424562316] [2023-01-28 07:34:35,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:34:35,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:34:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:34:36,689 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 07:34:36,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:34:36,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424562316] [2023-01-28 07:34:36,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424562316] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:34:36,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538534783] [2023-01-28 07:34:36,690 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 07:34:36,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:34:36,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:34:36,693 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 07:34:36,716 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 07:34:37,765 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-28 07:34:37,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:34:37,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 24 conjunts are in the unsatisfiable core [2023-01-28 07:34:37,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:34:38,076 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-28 07:34:38,077 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 45 treesize of output 41 [2023-01-28 07:34:38,084 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-28 07:34:38,253 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 07:34:38,288 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 07:34:38,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 07:34:38,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538534783] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:34:38,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 07:34:38,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-01-28 07:34:38,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052585461] [2023-01-28 07:34:38,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:34:38,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 07:34:38,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:34:38,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 07:34:38,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-01-28 07:34:38,293 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 664 out of 1590 [2023-01-28 07:34:38,300 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 46 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 666.75) internal successors, (2667), 4 states have internal predecessors, (2667), 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 07:34:38,300 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:34:38,300 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 664 of 1590 [2023-01-28 07:34:38,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:34:38,934 INFO L130 PetriNetUnfolder]: 112/245 cut-off events. [2023-01-28 07:34:38,934 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-28 07:34:38,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 245 events. 112/245 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 809 event pairs, 66 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 585. Up to 107 conditions per place. [2023-01-28 07:34:38,935 INFO L137 encePairwiseOnDemand]: 1586/1590 looper letters, 48 selfloop transitions, 4 changer transitions 7/59 dead transitions. [2023-01-28 07:34:38,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 59 transitions, 321 flow [2023-01-28 07:34:38,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 07:34:38,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 07:34:38,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2709 transitions. [2023-01-28 07:34:38,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4259433962264151 [2023-01-28 07:34:38,941 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2709 transitions. [2023-01-28 07:34:38,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2709 transitions. [2023-01-28 07:34:38,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:34:38,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2709 transitions. [2023-01-28 07:34:38,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 677.25) internal successors, (2709), 4 states have internal predecessors, (2709), 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 07:34:38,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1590.0) internal successors, (7950), 5 states have internal predecessors, (7950), 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 07:34:38,956 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1590.0) internal successors, (7950), 5 states have internal predecessors, (7950), 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 07:34:38,956 INFO L175 Difference]: Start difference. First operand has 46 places, 46 transitions, 168 flow. Second operand 4 states and 2709 transitions. [2023-01-28 07:34:38,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 59 transitions, 321 flow [2023-01-28 07:34:38,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 59 transitions, 311 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-01-28 07:34:38,961 INFO L231 Difference]: Finished difference. Result has 49 places, 47 transitions, 175 flow [2023-01-28 07:34:38,961 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1590, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=175, PETRI_PLACES=49, PETRI_TRANSITIONS=47} [2023-01-28 07:34:38,963 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 12 predicate places. [2023-01-28 07:34:38,963 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 47 transitions, 175 flow [2023-01-28 07:34:38,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 666.75) internal successors, (2667), 4 states have internal predecessors, (2667), 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 07:34:38,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:34:38,964 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:34:38,979 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 07:34:39,174 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 07:34:39,175 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 07:34:39,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:34:39,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1232467913, now seen corresponding path program 1 times [2023-01-28 07:34:39,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:34:39,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012310684] [2023-01-28 07:34:39,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:34:39,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:34:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:34:40,079 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 07:34:40,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:34:40,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012310684] [2023-01-28 07:34:40,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012310684] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:34:40,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894064598] [2023-01-28 07:34:40,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:34:40,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:34:40,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:34:40,081 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 07:34:40,108 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 07:34:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:34:41,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 15 conjunts are in the unsatisfiable core [2023-01-28 07:34:41,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:34:41,161 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 07:34:41,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:34:41,434 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 07:34:41,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894064598] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:34:41,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:34:41,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-01-28 07:34:41,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179364965] [2023-01-28 07:34:41,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:34:41,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-01-28 07:34:41,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:34:41,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-01-28 07:34:41,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2023-01-28 07:34:41,457 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 696 out of 1590 [2023-01-28 07:34:41,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 47 transitions, 175 flow. Second operand has 17 states, 17 states have (on average 697.5882352941177) internal successors, (11859), 17 states have internal predecessors, (11859), 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 07:34:41,464 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:34:41,464 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 696 of 1590 [2023-01-28 07:34:41,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:34:43,316 INFO L130 PetriNetUnfolder]: 112/254 cut-off events. [2023-01-28 07:34:43,317 INFO L131 PetriNetUnfolder]: For 71/71 co-relation queries the response was YES. [2023-01-28 07:34:43,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 657 conditions, 254 events. 112/254 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 856 event pairs, 102 based on Foata normal form. 9/256 useless extension candidates. Maximal degree in co-relation 646. Up to 240 conditions per place. [2023-01-28 07:34:43,318 INFO L137 encePairwiseOnDemand]: 1582/1590 looper letters, 39 selfloop transitions, 17 changer transitions 0/56 dead transitions. [2023-01-28 07:34:43,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 56 transitions, 335 flow [2023-01-28 07:34:43,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-28 07:34:43,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-28 07:34:43,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8424 transitions. [2023-01-28 07:34:43,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44150943396226416 [2023-01-28 07:34:43,336 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 8424 transitions. [2023-01-28 07:34:43,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 8424 transitions. [2023-01-28 07:34:43,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:34:43,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 8424 transitions. [2023-01-28 07:34:43,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 702.0) internal successors, (8424), 12 states have internal predecessors, (8424), 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 07:34:43,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1590.0) internal successors, (20670), 13 states have internal predecessors, (20670), 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 07:34:43,378 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1590.0) internal successors, (20670), 13 states have internal predecessors, (20670), 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 07:34:43,378 INFO L175 Difference]: Start difference. First operand has 49 places, 47 transitions, 175 flow. Second operand 12 states and 8424 transitions. [2023-01-28 07:34:43,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 56 transitions, 335 flow [2023-01-28 07:34:43,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 56 transitions, 330 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 07:34:43,380 INFO L231 Difference]: Finished difference. Result has 64 places, 56 transitions, 314 flow [2023-01-28 07:34:43,381 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1590, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=314, PETRI_PLACES=64, PETRI_TRANSITIONS=56} [2023-01-28 07:34:43,381 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 27 predicate places. [2023-01-28 07:34:43,381 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 56 transitions, 314 flow [2023-01-28 07:34:43,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 697.5882352941177) internal successors, (11859), 17 states have internal predecessors, (11859), 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 07:34:43,384 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:34:43,384 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:34:43,399 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 07:34:43,595 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 07:34:43,596 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 07:34:43,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:34:43,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1763918583, now seen corresponding path program 2 times [2023-01-28 07:34:43,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:34:43,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725401824] [2023-01-28 07:34:43,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:34:43,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:34:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:34:44,746 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 07:34:44,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:34:44,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725401824] [2023-01-28 07:34:44,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725401824] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:34:44,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253420409] [2023-01-28 07:34:44,747 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 07:34:44,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:34:44,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:34:44,748 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 07:34:44,773 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 07:34:46,178 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-28 07:34:46,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:34:46,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 1104 conjuncts, 194 conjunts are in the unsatisfiable core [2023-01-28 07:34:46,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:34:46,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:46,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:34:52,696 WARN L222 SmtUtils]: Spent 6.08s on a formula simplification. DAG size of input: 1131 DAG size of output: 308 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-01-28 07:34:52,702 INFO L321 Elim1Store]: treesize reduction 8561, result has 7.7 percent of original size [2023-01-28 07:34:52,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 46 case distinctions, treesize of input 300 treesize of output 941 [2023-01-28 07:34:56,906 INFO L321 Elim1Store]: treesize reduction 83, result has 27.2 percent of original size [2023-01-28 07:34:56,906 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 393 treesize of output 400 [2023-01-28 07:34:56,991 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-01-28 07:34:56,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 347 treesize of output 346 [2023-01-28 07:34:57,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 335 treesize of output 335 [2023-01-28 07:34:57,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 329 [2023-01-28 07:34:57,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 323 [2023-01-28 07:34:57,272 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 48 treesize of output 44 [2023-01-28 07:34:57,288 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-01-28 07:34:57,496 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 07:34:57,568 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 07:34:57,616 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 07:34:57,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 07:34:57,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253420409] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:34:57,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 07:34:57,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 17 [2023-01-28 07:34:57,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820716286] [2023-01-28 07:34:57,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:34:57,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 07:34:57,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:34:57,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 07:34:57,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2023-01-28 07:34:57,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 605 out of 1590 [2023-01-28 07:34:57,624 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 56 transitions, 314 flow. Second operand has 7 states, 7 states have (on average 606.7142857142857) internal successors, (4247), 7 states have internal predecessors, (4247), 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 07:34:57,624 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:34:57,624 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 605 of 1590 [2023-01-28 07:34:57,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:34:58,377 INFO L130 PetriNetUnfolder]: 104/239 cut-off events. [2023-01-28 07:34:58,377 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2023-01-28 07:34:58,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 660 conditions, 239 events. 104/239 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 773 event pairs, 65 based on Foata normal form. 7/239 useless extension candidates. Maximal degree in co-relation 643. Up to 107 conditions per place. [2023-01-28 07:34:58,378 INFO L137 encePairwiseOnDemand]: 1579/1590 looper letters, 47 selfloop transitions, 10 changer transitions 7/64 dead transitions. [2023-01-28 07:34:58,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 64 transitions, 466 flow [2023-01-28 07:34:58,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 07:34:58,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 07:34:58,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3679 transitions. [2023-01-28 07:34:58,387 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38563941299790355 [2023-01-28 07:34:58,387 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3679 transitions. [2023-01-28 07:34:58,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3679 transitions. [2023-01-28 07:34:58,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:34:58,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3679 transitions. [2023-01-28 07:34:58,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 613.1666666666666) internal successors, (3679), 6 states have internal predecessors, (3679), 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 07:34:58,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1590.0) internal successors, (11130), 7 states have internal predecessors, (11130), 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 07:34:58,404 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1590.0) internal successors, (11130), 7 states have internal predecessors, (11130), 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 07:34:58,404 INFO L175 Difference]: Start difference. First operand has 64 places, 56 transitions, 314 flow. Second operand 6 states and 3679 transitions. [2023-01-28 07:34:58,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 64 transitions, 466 flow [2023-01-28 07:34:58,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 64 transitions, 426 flow, removed 18 selfloop flow, removed 2 redundant places. [2023-01-28 07:34:58,408 INFO L231 Difference]: Finished difference. Result has 66 places, 52 transitions, 278 flow [2023-01-28 07:34:58,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1590, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=278, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2023-01-28 07:34:58,408 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 29 predicate places. [2023-01-28 07:34:58,409 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 278 flow [2023-01-28 07:34:58,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 606.7142857142857) internal successors, (4247), 7 states have internal predecessors, (4247), 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 07:34:58,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:34:58,410 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:34:58,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-01-28 07:34:58,620 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 07:34:58,621 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 07:34:58,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:34:58,621 INFO L85 PathProgramCache]: Analyzing trace with hash -2055195053, now seen corresponding path program 1 times [2023-01-28 07:34:58,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:34:58,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442373411] [2023-01-28 07:34:58,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:34:58,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:34:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:34:59,825 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 07:34:59,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:34:59,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442373411] [2023-01-28 07:34:59,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442373411] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:34:59,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816896778] [2023-01-28 07:34:59,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:34:59,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:34:59,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:34:59,829 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 07:34:59,851 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 07:35:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:35:00,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 1300 conjuncts, 27 conjunts are in the unsatisfiable core [2023-01-28 07:35:00,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:35:01,477 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 07:35:01,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:35:01,918 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 07:35:01,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816896778] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:35:01,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:35:01,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-01-28 07:35:01,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667383142] [2023-01-28 07:35:01,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:35:01,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-01-28 07:35:01,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:35:01,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-01-28 07:35:01,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2023-01-28 07:35:01,928 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 1590 [2023-01-28 07:35:01,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 278 flow. Second operand has 25 states, 25 states have (on average 701.48) internal successors, (17537), 25 states have internal predecessors, (17537), 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 07:35:01,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:35:01,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 1590 [2023-01-28 07:35:01,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:35:20,212 INFO L130 PetriNetUnfolder]: 49/142 cut-off events. [2023-01-28 07:35:20,212 INFO L131 PetriNetUnfolder]: For 1146/1146 co-relation queries the response was YES. [2023-01-28 07:35:20,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 142 events. 49/142 cut-off events. For 1146/1146 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 299 event pairs, 39 based on Foata normal form. 30/167 useless extension candidates. Maximal degree in co-relation 441. Up to 110 conditions per place. [2023-01-28 07:35:20,213 INFO L137 encePairwiseOnDemand]: 1582/1590 looper letters, 35 selfloop transitions, 35 changer transitions 0/70 dead transitions. [2023-01-28 07:35:20,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 70 transitions, 514 flow [2023-01-28 07:35:20,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-01-28 07:35:20,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-01-28 07:35:20,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 16906 transitions. [2023-01-28 07:35:20,240 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4430293501048218 [2023-01-28 07:35:20,241 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 16906 transitions. [2023-01-28 07:35:20,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 16906 transitions. [2023-01-28 07:35:20,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:35:20,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 16906 transitions. [2023-01-28 07:35:20,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 704.4166666666666) internal successors, (16906), 24 states have internal predecessors, (16906), 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 07:35:20,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 1590.0) internal successors, (39750), 25 states have internal predecessors, (39750), 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 07:35:20,300 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 1590.0) internal successors, (39750), 25 states have internal predecessors, (39750), 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 07:35:20,301 INFO L175 Difference]: Start difference. First operand has 66 places, 52 transitions, 278 flow. Second operand 24 states and 16906 transitions. [2023-01-28 07:35:20,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 70 transitions, 514 flow [2023-01-28 07:35:20,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 70 transitions, 492 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-01-28 07:35:20,304 INFO L231 Difference]: Finished difference. Result has 95 places, 70 transitions, 544 flow [2023-01-28 07:35:20,305 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1590, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=544, PETRI_PLACES=95, PETRI_TRANSITIONS=70} [2023-01-28 07:35:20,305 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 58 predicate places. [2023-01-28 07:35:20,305 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 70 transitions, 544 flow [2023-01-28 07:35:20,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 701.48) internal successors, (17537), 25 states have internal predecessors, (17537), 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 07:35:20,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:35:20,308 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:35:20,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-28 07:35:20,521 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 07:35:20,521 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 07:35:20,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:35:20,522 INFO L85 PathProgramCache]: Analyzing trace with hash -101560109, now seen corresponding path program 2 times [2023-01-28 07:35:20,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:35:20,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613853234] [2023-01-28 07:35:20,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:35:20,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:35:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:35:22,359 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 07:35:22,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:35:22,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613853234] [2023-01-28 07:35:22,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613853234] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:35:22,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884023816] [2023-01-28 07:35:22,360 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 07:35:22,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:35:22,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:35:22,364 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 07:35:22,364 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 07:35:44,924 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 07:35:44,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:35:44,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 1504 conjuncts, 52 conjunts are in the unsatisfiable core [2023-01-28 07:35:44,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:35:45,502 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 07:35:45,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:35:47,243 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 07:35:47,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884023816] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:35:47,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:35:47,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 69 [2023-01-28 07:35:47,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60862372] [2023-01-28 07:35:47,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:35:47,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2023-01-28 07:35:47,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:35:47,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2023-01-28 07:35:47,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1258, Invalid=3572, Unknown=0, NotChecked=0, Total=4830 [2023-01-28 07:35:47,270 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 1590 [2023-01-28 07:35:47,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 70 transitions, 544 flow. Second operand has 70 states, 70 states have (on average 701.1714285714286) internal successors, (49082), 70 states have internal predecessors, (49082), 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 07:35:47,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:35:47,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 1590 [2023-01-28 07:35:47,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:35:53,950 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse7 (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296)) (.cse5 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296)) (.cse1 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296)) (.cse15 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296)) (.cse6 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296)) (.cse3 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296)) (.cse12 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296)) (.cse17 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 18) 4294967296)) (.cse2 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 16) 4294967296)) (.cse19 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 17) 4294967296)) (.cse18 (mod (+ 19 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296)) (.cse8 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 20) 4294967296)) (.cse9 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 21) 4294967296)) (.cse16 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296)) (.cse11 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296)) (.cse21 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296)) (.cse22 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296)) (.cse4 (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296)) (.cse10 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296)) (.cse20 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296)) (.cse13 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296)) (.cse14 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296)) (.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (or (<= .cse0 .cse1) (< .cse2 .cse0)) (or (< .cse3 .cse0) (<= .cse0 .cse4)) (or (< .cse5 .cse0) (<= .cse0 .cse6)) (< .cse7 .cse0) (or (<= .cse0 .cse8) (< .cse9 .cse0)) (or (< .cse10 .cse0) (<= .cse0 .cse11)) (or (<= .cse0 .cse12) (< .cse13 .cse0)) (or (<= .cse0 .cse14) (< .cse15 .cse0)) (or (< .cse16 .cse0) (<= .cse0 .cse7)) (or (<= .cse0 .cse5) (< .cse1 .cse0)) (or (<= .cse0 .cse15) (< .cse6 .cse0)) (or (<= .cse0 .cse3) (< .cse12 .cse0)) (or (<= .cse0 .cse17) (< .cse18 .cse0)) (or (<= .cse0 .cse19) (< .cse17 .cse0)) (or (<= .cse0 .cse2) (< .cse19 .cse0)) (or (<= .cse0 .cse20) (< .cse21 .cse0)) (or (<= .cse0 .cse18) (< .cse8 .cse0)) (or (<= .cse0 .cse9) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 22) 4294967296) .cse0)) (or (<= .cse0 .cse16) (< .cse11 .cse0)) (or (< .cse22 .cse0) (<= .cse0 .cse21)) (or (<= .cse0 .cse22) (< .cse4 .cse0)) (or (<= .cse0 .cse10) (< .cse20 .cse0)) (or (<= .cse0 .cse13) (< .cse14 .cse0)))) is different from false [2023-01-28 07:39:24,399 WARN L222 SmtUtils]: Spent 3.02m on a formula simplification. DAG size of input: 133 DAG size of output: 91 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 07:39:25,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 07:39:28,151 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse7 (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296)) (.cse5 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296)) (.cse1 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296)) (.cse13 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296)) (.cse6 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296)) (.cse3 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296)) (.cse10 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296)) (.cse15 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 18) 4294967296)) (.cse2 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 16) 4294967296)) (.cse17 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 17) 4294967296)) (.cse16 (mod (+ 19 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296)) (.cse14 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296)) (.cse9 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296)) (.cse19 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296)) (.cse20 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296)) (.cse4 (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296)) (.cse8 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296)) (.cse18 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296)) (.cse11 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296)) (.cse12 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296)) (.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (or (<= .cse0 .cse1) (< .cse2 .cse0)) (or (< .cse3 .cse0) (<= .cse0 .cse4)) (or (< .cse5 .cse0) (<= .cse0 .cse6)) (< .cse7 .cse0) (or (< .cse8 .cse0) (<= .cse0 .cse9)) (or (<= .cse0 .cse10) (< .cse11 .cse0)) (or (<= .cse0 .cse12) (< .cse13 .cse0)) (or (< .cse14 .cse0) (<= .cse0 .cse7)) (or (<= .cse0 .cse5) (< .cse1 .cse0)) (or (<= .cse0 .cse13) (< .cse6 .cse0)) (or (<= .cse0 .cse3) (< .cse10 .cse0)) (or (<= .cse0 .cse15) (< .cse16 .cse0)) (or (<= .cse0 .cse17) (< .cse15 .cse0)) (or (<= .cse0 .cse2) (< .cse17 .cse0)) (or (<= .cse0 .cse18) (< .cse19 .cse0)) (or (<= .cse0 .cse16) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 20) 4294967296) .cse0)) (or (<= .cse0 .cse14) (< .cse9 .cse0)) (or (< .cse20 .cse0) (<= .cse0 .cse19)) (or (<= .cse0 .cse20) (< .cse4 .cse0)) (or (<= .cse0 .cse8) (< .cse18 .cse0)) (or (<= .cse0 .cse11) (< .cse12 .cse0)))) is different from false Received shutdown request... [2023-01-28 07:40:59,082 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 07:40:59,082 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 07:41:00,109 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 07:41:00,283 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2023-01-28 07:41:00,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 [2023-01-28 07:41:00,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-01-28 07:41:00,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 07:41:00,305 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack at de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.pop(UndoableWrapperScript.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.restore(UndoableWrapperScript.java:87) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:236) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:376) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.NestedWordAutomataUtils.getSuccessorState(NestedWordAutomataUtils.java:483) at de.uni_freiburg.informatik.ultimate.automata.petrinet.operations.DifferencePetriNet$DifferenceSuccessorTransitionProvider.getOrConstructTransition(DifferencePetriNet.java:279) at de.uni_freiburg.informatik.ultimate.automata.petrinet.operations.DifferencePetriNet$DifferenceSuccessorTransitionProvider.getTransitions(DifferencePetriNet.java:261) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PossibleExtensions.addFullyInstantiatedCandidate(PossibleExtensions.java:168) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PossibleExtensions.evolveCandidate(PossibleExtensions.java:195) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PossibleExtensions.evolveCandidate(PossibleExtensions.java:210) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PossibleExtensions.evolveCandidate(PossibleExtensions.java:210) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PossibleExtensions.evolveCandidate(PossibleExtensions.java:210) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PossibleExtensions.update(PossibleExtensions.java:135) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.computeUnfoldingHelper(PetriNetUnfolder.java:209) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.computeUnfolding(PetriNetUnfolder.java:168) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.(PetriNetUnfolder.java:129) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:76) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:64) at de.uni_freiburg.informatik.ultimate.automata.petrinet.operations.DifferencePairwiseOnDemand.(DifferencePairwiseOnDemand.java:125) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.enhanceAnddeterminizeInterpolantAutomaton(CegarLoopForPetriNet.java:481) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.refineAbstraction(CegarLoopForPetriNet.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-01-28 07:41:00,311 INFO L158 Benchmark]: Toolchain (without parser) took 837472.08ms. Allocated memory was 362.8MB in the beginning and 992.0MB in the end (delta: 629.1MB). Free memory was 297.7MB in the beginning and 692.7MB in the end (delta: -395.0MB). Peak memory consumption was 236.3MB. Max. memory is 16.0GB. [2023-01-28 07:41:00,311 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 255.9MB. Free memory is still 214.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:41:00,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4022.70ms. Allocated memory was 362.8MB in the beginning and 476.1MB in the end (delta: 113.2MB). Free memory was 297.5MB in the beginning and 417.6MB in the end (delta: -120.2MB). Peak memory consumption was 100.3MB. Max. memory is 16.0GB. [2023-01-28 07:41:00,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 180.40ms. Allocated memory is still 476.1MB. Free memory was 417.6MB in the beginning and 406.1MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-28 07:41:00,312 INFO L158 Benchmark]: Boogie Preprocessor took 82.05ms. Allocated memory is still 476.1MB. Free memory was 406.1MB in the beginning and 400.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2023-01-28 07:41:00,312 INFO L158 Benchmark]: RCFGBuilder took 1266.24ms. Allocated memory is still 476.1MB. Free memory was 400.9MB in the beginning and 334.8MB in the end (delta: 66.1MB). Peak memory consumption was 65.0MB. Max. memory is 16.0GB. [2023-01-28 07:41:00,312 INFO L158 Benchmark]: TraceAbstraction took 831913.71ms. Allocated memory was 476.1MB in the beginning and 992.0MB in the end (delta: 515.9MB). Free memory was 333.8MB in the beginning and 692.7MB in the end (delta: -358.9MB). Peak memory consumption was 157.0MB. Max. memory is 16.0GB. [2023-01-28 07:41:00,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 255.9MB. Free memory is still 214.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 4022.70ms. Allocated memory was 362.8MB in the beginning and 476.1MB in the end (delta: 113.2MB). Free memory was 297.5MB in the beginning and 417.6MB in the end (delta: -120.2MB). Peak memory consumption was 100.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 180.40ms. Allocated memory is still 476.1MB. Free memory was 417.6MB in the beginning and 406.1MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Preprocessor took 82.05ms. Allocated memory is still 476.1MB. Free memory was 406.1MB in the beginning and 400.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * RCFGBuilder took 1266.24ms. Allocated memory is still 476.1MB. Free memory was 400.9MB in the beginning and 334.8MB in the end (delta: 66.1MB). Peak memory consumption was 65.0MB. Max. memory is 16.0GB. * TraceAbstraction took 831913.71ms. Allocated memory was 476.1MB in the beginning and 992.0MB in the end (delta: 515.9MB). Free memory was 333.8MB in the beginning and 692.7MB in the end (delta: -358.9MB). Peak memory consumption was 157.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 440.1s, 699 PlacesBefore, 37 PlacesAfterwards, 744 TransitionsBefore, 52 TransitionsAfterwards, 9868 CoEnabledTransitionPairs, 10 FixpointIterations, 571 TrivialSequentialCompositions, 130 ConcurrentSequentialCompositions, 84 TrivialYvCompositions, 21 ConcurrentYvCompositions, 30 ChoiceCompositions, 836 TotalNumberOfCompositions, 9086 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7977, independent: 7849, independent conditional: 0, independent unconditional: 7849, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5270, independent: 5237, independent conditional: 0, independent unconditional: 5237, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7977, independent: 2612, independent conditional: 0, independent unconditional: 2612, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 5270, unknown conditional: 0, unknown unconditional: 5270] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 49, Positive conditional cache size: 0, Positive unconditional cache size: 49, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - ExceptionOrErrorResult: SMTLIBException: Not enough levels on assertion stack de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Not enough levels on assertion stack: de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown