/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/systemc/transmitter.07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:26:28,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:26:28,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:26:28,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:26:28,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:26:28,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:26:28,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:26:28,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:26:28,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:26:28,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:26:28,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:26:28,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:26:28,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:26:28,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:26:28,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:26:28,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:26:28,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:26:28,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:26:28,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:26:28,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:26:28,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:26:28,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:26:28,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:26:28,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:26:28,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:26:28,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:26:28,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:26:28,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:26:28,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:26:28,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:26:28,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:26:28,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:26:28,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:26:28,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:26:28,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:26:28,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:26:28,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:26:28,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:26:28,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:26:28,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:26:28,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:26:28,497 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-31 01:26:28,519 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:26:28,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:26:28,520 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:26:28,520 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:26:28,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:26:28,521 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:26:28,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:26:28,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:26:28,522 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:26:28,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:26:28,523 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:26:28,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:26:28,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:26:28,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:26:28,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:26:28,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:26:28,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:26:28,524 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:26:28,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:26:28,524 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:26:28,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:26:28,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:26:28,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:26:28,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:26:28,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:26:28,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:26:28,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:26:28,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:26:28,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:26:28,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:26:28,526 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:26:28,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:26:28,526 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:26:28,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:26:28,526 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:26:28,526 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:26:28,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:26:28,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:26:28,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:26:28,807 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:26:28,807 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:26:28,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.07.cil.c [2023-03-31 01:26:30,000 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:26:30,232 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:26:30,232 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.07.cil.c [2023-03-31 01:26:30,252 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/715466256/0cdb7ab095cc4647b653353e502709f0/FLAG363d0bb0a [2023-03-31 01:26:30,581 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/715466256/0cdb7ab095cc4647b653353e502709f0 [2023-03-31 01:26:30,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:26:30,584 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:26:30,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:26:30,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:26:30,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:26:30,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:26:30" (1/1) ... [2023-03-31 01:26:30,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a435b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:26:30, skipping insertion in model container [2023-03-31 01:26:30,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:26:30" (1/1) ... [2023-03-31 01:26:30,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:26:30,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:26:30,783 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.07.cil.c[706,719] [2023-03-31 01:26:30,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:26:30,914 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:26:30,926 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.07.cil.c[706,719] [2023-03-31 01:26:30,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:26:31,008 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:26:31,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:26:31 WrapperNode [2023-03-31 01:26:31,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:26:31,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:26:31,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:26:31,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:26:31,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:26:31" (1/1) ... [2023-03-31 01:26:31,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:26:31" (1/1) ... [2023-03-31 01:26:31,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:26:31" (1/1) ... [2023-03-31 01:26:31,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:26:31" (1/1) ... [2023-03-31 01:26:31,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:26:31" (1/1) ... [2023-03-31 01:26:31,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:26:31" (1/1) ... [2023-03-31 01:26:31,094 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:26:31" (1/1) ... [2023-03-31 01:26:31,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:26:31" (1/1) ... [2023-03-31 01:26:31,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:26:31,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:26:31,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:26:31,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:26:31,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:26:31" (1/1) ... [2023-03-31 01:26:31,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:26:31,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:26:31,142 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) [2023-03-31 01:26:31,153 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 [2023-03-31 01:26:31,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:26:31,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:26:31,185 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:26:31,186 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-03-31 01:26:31,186 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2023-03-31 01:26:31,186 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2023-03-31 01:26:31,186 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2023-03-31 01:26:31,186 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2023-03-31 01:26:31,186 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2023-03-31 01:26:31,186 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2023-03-31 01:26:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2023-03-31 01:26:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2023-03-31 01:26:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2023-03-31 01:26:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2023-03-31 01:26:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2023-03-31 01:26:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2023-03-31 01:26:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2023-03-31 01:26:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2023-03-31 01:26:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2023-03-31 01:26:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2023-03-31 01:26:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-03-31 01:26:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2023-03-31 01:26:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-03-31 01:26:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2023-03-31 01:26:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-03-31 01:26:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-03-31 01:26:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-03-31 01:26:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-03-31 01:26:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2023-03-31 01:26:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2023-03-31 01:26:31,189 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2023-03-31 01:26:31,189 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2023-03-31 01:26:31,189 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2023-03-31 01:26:31,189 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:26:31,189 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:26:31,189 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:26:31,189 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:26:31,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:26:31,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 01:26:31,189 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-03-31 01:26:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2023-03-31 01:26:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2023-03-31 01:26:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2023-03-31 01:26:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2023-03-31 01:26:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2023-03-31 01:26:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2023-03-31 01:26:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2023-03-31 01:26:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2023-03-31 01:26:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-03-31 01:26:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure master [2023-03-31 01:26:31,191 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2023-03-31 01:26:31,191 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2023-03-31 01:26:31,191 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2023-03-31 01:26:31,191 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2023-03-31 01:26:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2023-03-31 01:26:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2023-03-31 01:26:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2023-03-31 01:26:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-03-31 01:26:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2023-03-31 01:26:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-03-31 01:26:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2023-03-31 01:26:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-03-31 01:26:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-03-31 01:26:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-03-31 01:26:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2023-03-31 01:26:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2023-03-31 01:26:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2023-03-31 01:26:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2023-03-31 01:26:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2023-03-31 01:26:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:26:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:26:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:26:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:26:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:26:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:26:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:26:31,299 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:26:31,302 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:26:31,901 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:26:31,910 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:26:31,910 INFO L302 CfgBuilder]: Removed 11 assume(true) statements. [2023-03-31 01:26:31,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:26:31 BoogieIcfgContainer [2023-03-31 01:26:31,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:26:31,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:26:31,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:26:31,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:26:31,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:26:30" (1/3) ... [2023-03-31 01:26:31,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4daa20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:26:31, skipping insertion in model container [2023-03-31 01:26:31,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:26:31" (2/3) ... [2023-03-31 01:26:31,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4daa20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:26:31, skipping insertion in model container [2023-03-31 01:26:31,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:26:31" (3/3) ... [2023-03-31 01:26:31,919 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.07.cil.c [2023-03-31 01:26:31,934 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:26:31,934 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:26:31,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:26:31,985 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b910083, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:26:31,986 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:26:31,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 319 states, 239 states have (on average 1.602510460251046) internal successors, (383), 251 states have internal predecessors, (383), 46 states have call successors, (46), 32 states have call predecessors, (46), 32 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-03-31 01:26:32,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-03-31 01:26:32,011 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:26:32,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:26:32,012 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:26:32,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:26:32,016 INFO L85 PathProgramCache]: Analyzing trace with hash -27222501, now seen corresponding path program 1 times [2023-03-31 01:26:32,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:26:32,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700708953] [2023-03-31 01:26:32,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:26:32,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:26:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:32,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:26:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:32,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:26:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:32,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:26:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:32,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:26:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:32,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 01:26:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:32,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:26:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:32,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:26:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:32,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:26:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:32,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:26:32,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:32,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:26:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:32,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:26:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:32,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:26:32,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:32,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:26:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:32,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:26:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:32,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-03-31 01:26:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:32,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-03-31 01:26:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:32,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:26:32,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:26:32,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700708953] [2023-03-31 01:26:32,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700708953] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:26:32,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:26:32,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:26:32,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046651140] [2023-03-31 01:26:32,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:26:32,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:26:32,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:26:32,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:26:32,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:26:32,838 INFO L87 Difference]: Start difference. First operand has 319 states, 239 states have (on average 1.602510460251046) internal successors, (383), 251 states have internal predecessors, (383), 46 states have call successors, (46), 32 states have call predecessors, (46), 32 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 8 states, 8 states have (on average 16.0) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:26:35,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:26:35,769 INFO L93 Difference]: Finished difference Result 813 states and 1308 transitions. [2023-03-31 01:26:35,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-03-31 01:26:35,771 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 165 [2023-03-31 01:26:35,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:26:35,784 INFO L225 Difference]: With dead ends: 813 [2023-03-31 01:26:35,785 INFO L226 Difference]: Without dead ends: 502 [2023-03-31 01:26:35,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:26:35,792 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 1611 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 1799 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1611 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 2251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 1799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-03-31 01:26:35,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1611 Valid, 31 Invalid, 2251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [452 Valid, 1799 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-03-31 01:26:35,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2023-03-31 01:26:35,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 310. [2023-03-31 01:26:35,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 234 states have (on average 1.5085470085470085) internal successors, (353), 244 states have internal predecessors, (353), 46 states have call successors, (46), 32 states have call predecessors, (46), 29 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-03-31 01:26:35,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 442 transitions. [2023-03-31 01:26:35,945 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 442 transitions. Word has length 165 [2023-03-31 01:26:35,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:26:35,945 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 442 transitions. [2023-03-31 01:26:35,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:26:35,946 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 442 transitions. [2023-03-31 01:26:35,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-03-31 01:26:35,949 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:26:35,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:26:35,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:26:35,949 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:26:35,950 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:26:35,950 INFO L85 PathProgramCache]: Analyzing trace with hash -365510051, now seen corresponding path program 1 times [2023-03-31 01:26:35,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:26:35,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977639355] [2023-03-31 01:26:35,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:26:35,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:26:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:36,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:26:36,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:36,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:26:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:36,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:26:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:36,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:26:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:36,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 01:26:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:36,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:26:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:36,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:26:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:36,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:26:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:36,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:26:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:36,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:26:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:36,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:26:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:36,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:26:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:36,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:26:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:36,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:26:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:36,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-03-31 01:26:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:36,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-03-31 01:26:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:36,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:26:36,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:26:36,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977639355] [2023-03-31 01:26:36,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977639355] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:26:36,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:26:36,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:26:36,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583816043] [2023-03-31 01:26:36,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:26:36,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:26:36,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:26:36,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:26:36,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:26:36,411 INFO L87 Difference]: Start difference. First operand 310 states and 442 transitions. Second operand has 8 states, 8 states have (on average 16.0) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:26:39,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:26:39,896 INFO L93 Difference]: Finished difference Result 1235 states and 1893 transitions. [2023-03-31 01:26:39,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 01:26:39,896 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 165 [2023-03-31 01:26:39,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:26:39,907 INFO L225 Difference]: With dead ends: 1235 [2023-03-31 01:26:39,907 INFO L226 Difference]: Without dead ends: 950 [2023-03-31 01:26:39,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:26:39,915 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2687 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2727 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 2931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-03-31 01:26:39,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2727 Valid, 15 Invalid, 2931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-03-31 01:26:39,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2023-03-31 01:26:40,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 599. [2023-03-31 01:26:40,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 464 states have (on average 1.519396551724138) internal successors, (705), 484 states have internal predecessors, (705), 79 states have call successors, (79), 56 states have call predecessors, (79), 55 states have return successors, (80), 77 states have call predecessors, (80), 76 states have call successors, (80) [2023-03-31 01:26:40,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 864 transitions. [2023-03-31 01:26:40,104 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 864 transitions. Word has length 165 [2023-03-31 01:26:40,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:26:40,106 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 864 transitions. [2023-03-31 01:26:40,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:26:40,106 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 864 transitions. [2023-03-31 01:26:40,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-03-31 01:26:40,110 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:26:40,111 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:26:40,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:26:40,111 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:26:40,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:26:40,112 INFO L85 PathProgramCache]: Analyzing trace with hash -255813799, now seen corresponding path program 1 times [2023-03-31 01:26:40,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:26:40,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701766839] [2023-03-31 01:26:40,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:26:40,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:26:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:40,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:26:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:40,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:26:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:40,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:26:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:40,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:26:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:40,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 01:26:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:40,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:26:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:40,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:26:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:40,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:26:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:40,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:26:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:40,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:26:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:40,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:26:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:40,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:26:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:40,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:26:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:40,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:26:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:40,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-03-31 01:26:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:40,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-03-31 01:26:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:40,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:26:40,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:26:40,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701766839] [2023-03-31 01:26:40,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701766839] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:26:40,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:26:40,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 01:26:40,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401532462] [2023-03-31 01:26:40,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:26:40,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 01:26:40,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:26:40,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 01:26:40,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-03-31 01:26:40,558 INFO L87 Difference]: Start difference. First operand 599 states and 864 transitions. Second operand has 10 states, 10 states have (on average 12.8) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:26:43,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:26:43,134 INFO L93 Difference]: Finished difference Result 1501 states and 2249 transitions. [2023-03-31 01:26:43,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-03-31 01:26:43,135 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 165 [2023-03-31 01:26:43,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:26:43,140 INFO L225 Difference]: With dead ends: 1501 [2023-03-31 01:26:43,141 INFO L226 Difference]: Without dead ends: 927 [2023-03-31 01:26:43,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:26:43,143 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2470 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1813 mSolverCounterSat, 693 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2470 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 2506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 693 IncrementalHoareTripleChecker+Valid, 1813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-03-31 01:26:43,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2470 Valid, 15 Invalid, 2506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [693 Valid, 1813 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-03-31 01:26:43,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2023-03-31 01:26:43,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 599. [2023-03-31 01:26:43,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 464 states have (on average 1.5043103448275863) internal successors, (698), 484 states have internal predecessors, (698), 79 states have call successors, (79), 56 states have call predecessors, (79), 55 states have return successors, (80), 77 states have call predecessors, (80), 76 states have call successors, (80) [2023-03-31 01:26:43,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 857 transitions. [2023-03-31 01:26:43,318 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 857 transitions. Word has length 165 [2023-03-31 01:26:43,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:26:43,318 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 857 transitions. [2023-03-31 01:26:43,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:26:43,319 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 857 transitions. [2023-03-31 01:26:43,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-03-31 01:26:43,321 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:26:43,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:26:43,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:26:43,321 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:26:43,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:26:43,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1083559203, now seen corresponding path program 1 times [2023-03-31 01:26:43,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:26:43,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988797457] [2023-03-31 01:26:43,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:26:43,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:26:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:43,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:26:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:43,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:26:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:43,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:26:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:43,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:26:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:43,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 01:26:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:43,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:26:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:43,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:26:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:43,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:26:43,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:43,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:26:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:43,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:26:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:43,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:26:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:43,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:26:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:43,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:26:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:43,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:26:43,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:43,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-03-31 01:26:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:43,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-03-31 01:26:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:43,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:26:43,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:26:43,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988797457] [2023-03-31 01:26:43,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988797457] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:26:43,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:26:43,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 01:26:43,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569537627] [2023-03-31 01:26:43,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:26:43,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 01:26:43,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:26:43,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 01:26:43,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-03-31 01:26:43,702 INFO L87 Difference]: Start difference. First operand 599 states and 857 transitions. Second operand has 10 states, 10 states have (on average 12.8) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:26:46,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:26:46,375 INFO L93 Difference]: Finished difference Result 1498 states and 2228 transitions. [2023-03-31 01:26:46,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-03-31 01:26:46,377 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 165 [2023-03-31 01:26:46,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:26:46,383 INFO L225 Difference]: With dead ends: 1498 [2023-03-31 01:26:46,384 INFO L226 Difference]: Without dead ends: 924 [2023-03-31 01:26:46,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:26:46,386 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1478 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 1951 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 1951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-03-31 01:26:46,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1478 Valid, 17 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 1951 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-03-31 01:26:46,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2023-03-31 01:26:46,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 599. [2023-03-31 01:26:46,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 464 states have (on average 1.4892241379310345) internal successors, (691), 484 states have internal predecessors, (691), 79 states have call successors, (79), 56 states have call predecessors, (79), 55 states have return successors, (80), 77 states have call predecessors, (80), 76 states have call successors, (80) [2023-03-31 01:26:46,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 850 transitions. [2023-03-31 01:26:46,561 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 850 transitions. Word has length 165 [2023-03-31 01:26:46,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:26:46,561 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 850 transitions. [2023-03-31 01:26:46,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:26:46,562 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 850 transitions. [2023-03-31 01:26:46,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-03-31 01:26:46,564 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:26:46,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:26:46,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:26:46,565 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:26:46,565 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:26:46,565 INFO L85 PathProgramCache]: Analyzing trace with hash -417524007, now seen corresponding path program 1 times [2023-03-31 01:26:46,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:26:46,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577563532] [2023-03-31 01:26:46,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:26:46,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:26:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:46,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:26:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:46,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:26:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:46,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:26:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:46,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:26:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:46,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 01:26:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:46,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:26:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:46,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:26:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:46,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:26:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:46,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:26:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:46,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:26:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:46,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:26:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:46,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:26:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:46,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:26:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:46,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:26:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:46,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-03-31 01:26:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:46,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-03-31 01:26:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:46,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:26:46,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:26:46,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577563532] [2023-03-31 01:26:46,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577563532] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:26:46,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:26:46,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:26:46,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760400421] [2023-03-31 01:26:46,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:26:46,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:26:46,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:26:46,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:26:46,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:26:46,985 INFO L87 Difference]: Start difference. First operand 599 states and 850 transitions. Second operand has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:26:53,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:26:53,474 INFO L93 Difference]: Finished difference Result 2667 states and 3961 transitions. [2023-03-31 01:26:53,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-03-31 01:26:53,475 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 165 [2023-03-31 01:26:53,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:26:53,488 INFO L225 Difference]: With dead ends: 2667 [2023-03-31 01:26:53,488 INFO L226 Difference]: Without dead ends: 2093 [2023-03-31 01:26:53,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-03-31 01:26:53,498 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2461 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 5657 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2501 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 6231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 5657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-03-31 01:26:53,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2501 Valid, 16 Invalid, 6231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 5657 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-03-31 01:26:53,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2023-03-31 01:26:53,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 1417. [2023-03-31 01:26:53,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1417 states, 1096 states have (on average 1.4625912408759123) internal successors, (1603), 1166 states have internal predecessors, (1603), 181 states have call successors, (181), 122 states have call predecessors, (181), 139 states have return successors, (231), 181 states have call predecessors, (231), 178 states have call successors, (231) [2023-03-31 01:26:53,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 2015 transitions. [2023-03-31 01:26:53,830 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 2015 transitions. Word has length 165 [2023-03-31 01:26:53,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:26:53,831 INFO L495 AbstractCegarLoop]: Abstraction has 1417 states and 2015 transitions. [2023-03-31 01:26:53,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:26:53,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 2015 transitions. [2023-03-31 01:26:53,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-03-31 01:26:53,834 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:26:53,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:26:53,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:26:53,834 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:26:53,835 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:26:53,835 INFO L85 PathProgramCache]: Analyzing trace with hash 981429595, now seen corresponding path program 1 times [2023-03-31 01:26:53,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:26:53,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386823612] [2023-03-31 01:26:53,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:26:53,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:26:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:54,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:26:54,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:54,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:26:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:54,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:26:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:54,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:26:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:54,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 01:26:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:54,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:26:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:54,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:26:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:54,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:26:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:54,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:26:54,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:54,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:26:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:54,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:26:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:54,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:26:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:54,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:26:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:54,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:26:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:54,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-03-31 01:26:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:54,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-03-31 01:26:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:54,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:26:54,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:26:54,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386823612] [2023-03-31 01:26:54,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386823612] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:26:54,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:26:54,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:26:54,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248644139] [2023-03-31 01:26:54,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:26:54,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:26:54,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:26:54,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:26:54,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:26:54,242 INFO L87 Difference]: Start difference. First operand 1417 states and 2015 transitions. Second operand has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:27:00,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:27:00,336 INFO L93 Difference]: Finished difference Result 4061 states and 6023 transitions. [2023-03-31 01:27:00,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-03-31 01:27:00,337 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 165 [2023-03-31 01:27:00,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:27:00,351 INFO L225 Difference]: With dead ends: 4061 [2023-03-31 01:27:00,351 INFO L226 Difference]: Without dead ends: 2981 [2023-03-31 01:27:00,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-03-31 01:27:00,355 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3306 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 4758 mSolverCounterSat, 799 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3347 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 5557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 799 IncrementalHoareTripleChecker+Valid, 4758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:27:00,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3347 Valid, 16 Invalid, 5557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [799 Valid, 4758 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-03-31 01:27:00,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2023-03-31 01:27:00,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 1981. [2023-03-31 01:27:00,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1981 states, 1542 states have (on average 1.4708171206225682) internal successors, (2268), 1632 states have internal predecessors, (2268), 247 states have call successors, (247), 170 states have call predecessors, (247), 191 states have return successors, (309), 249 states have call predecessors, (309), 244 states have call successors, (309) [2023-03-31 01:27:00,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 2824 transitions. [2023-03-31 01:27:00,861 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 2824 transitions. Word has length 165 [2023-03-31 01:27:00,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:27:00,861 INFO L495 AbstractCegarLoop]: Abstraction has 1981 states and 2824 transitions. [2023-03-31 01:27:00,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:27:00,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 2824 transitions. [2023-03-31 01:27:00,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-03-31 01:27:00,867 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:27:00,867 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:27:00,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 01:27:00,867 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:27:00,868 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:27:00,868 INFO L85 PathProgramCache]: Analyzing trace with hash -636010855, now seen corresponding path program 1 times [2023-03-31 01:27:00,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:27:00,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189289740] [2023-03-31 01:27:00,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:27:00,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:27:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:01,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:27:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:01,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:27:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:01,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:27:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:01,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:27:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:01,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 01:27:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:01,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:27:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:01,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:27:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:01,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:27:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:01,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:27:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:01,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:27:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:01,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:27:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:01,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:27:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:01,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:27:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:01,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:27:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:01,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-03-31 01:27:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:01,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-03-31 01:27:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:01,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:27:01,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:27:01,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189289740] [2023-03-31 01:27:01,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189289740] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:27:01,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:27:01,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 01:27:01,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008435409] [2023-03-31 01:27:01,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:27:01,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 01:27:01,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:27:01,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 01:27:01,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-03-31 01:27:01,241 INFO L87 Difference]: Start difference. First operand 1981 states and 2824 transitions. Second operand has 10 states, 10 states have (on average 12.8) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:27:03,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:27:03,967 INFO L93 Difference]: Finished difference Result 4466 states and 6552 transitions. [2023-03-31 01:27:03,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-03-31 01:27:03,967 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 165 [2023-03-31 01:27:03,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:27:03,979 INFO L225 Difference]: With dead ends: 4466 [2023-03-31 01:27:03,980 INFO L226 Difference]: Without dead ends: 2816 [2023-03-31 01:27:03,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:27:03,984 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2103 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1940 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2103 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 2487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 1940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:27:03,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2103 Valid, 15 Invalid, 2487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 1940 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-03-31 01:27:03,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2816 states. [2023-03-31 01:27:04,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2816 to 1981. [2023-03-31 01:27:04,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1981 states, 1542 states have (on average 1.4571984435797665) internal successors, (2247), 1632 states have internal predecessors, (2247), 247 states have call successors, (247), 170 states have call predecessors, (247), 191 states have return successors, (309), 249 states have call predecessors, (309), 244 states have call successors, (309) [2023-03-31 01:27:04,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 2803 transitions. [2023-03-31 01:27:04,521 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 2803 transitions. Word has length 165 [2023-03-31 01:27:04,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:27:04,522 INFO L495 AbstractCegarLoop]: Abstraction has 1981 states and 2803 transitions. [2023-03-31 01:27:04,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:27:04,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 2803 transitions. [2023-03-31 01:27:04,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-03-31 01:27:04,526 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:27:04,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:27:04,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 01:27:04,527 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:27:04,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:27:04,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1376550763, now seen corresponding path program 1 times [2023-03-31 01:27:04,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:27:04,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551541976] [2023-03-31 01:27:04,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:27:04,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:27:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:04,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:27:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:04,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:27:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:04,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:27:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:04,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:27:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:04,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 01:27:04,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:04,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:27:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:04,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:27:04,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:04,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:27:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:04,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:27:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:04,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:27:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:04,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:27:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:04,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:27:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:04,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:27:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:04,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:27:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:04,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-03-31 01:27:04,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:04,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-03-31 01:27:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:04,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:27:04,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:27:04,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551541976] [2023-03-31 01:27:04,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551541976] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:27:04,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:27:04,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 01:27:04,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321289277] [2023-03-31 01:27:04,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:27:04,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 01:27:04,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:27:04,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 01:27:04,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-03-31 01:27:04,900 INFO L87 Difference]: Start difference. First operand 1981 states and 2803 transitions. Second operand has 10 states, 10 states have (on average 12.8) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:27:07,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:27:07,428 INFO L93 Difference]: Finished difference Result 4463 states and 6501 transitions. [2023-03-31 01:27:07,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-03-31 01:27:07,429 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 165 [2023-03-31 01:27:07,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:27:07,442 INFO L225 Difference]: With dead ends: 4463 [2023-03-31 01:27:07,442 INFO L226 Difference]: Without dead ends: 2816 [2023-03-31 01:27:07,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:27:07,448 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1955 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 536 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1955 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 2120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 536 IncrementalHoareTripleChecker+Valid, 1584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:27:07,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1955 Valid, 17 Invalid, 2120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [536 Valid, 1584 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-03-31 01:27:07,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2816 states. [2023-03-31 01:27:07,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2816 to 1981. [2023-03-31 01:27:07,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1981 states, 1542 states have (on average 1.443579766536965) internal successors, (2226), 1632 states have internal predecessors, (2226), 247 states have call successors, (247), 170 states have call predecessors, (247), 191 states have return successors, (309), 249 states have call predecessors, (309), 244 states have call successors, (309) [2023-03-31 01:27:07,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 2782 transitions. [2023-03-31 01:27:07,976 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 2782 transitions. Word has length 165 [2023-03-31 01:27:07,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:27:07,977 INFO L495 AbstractCegarLoop]: Abstraction has 1981 states and 2782 transitions. [2023-03-31 01:27:07,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:27:07,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 2782 transitions. [2023-03-31 01:27:07,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-03-31 01:27:07,981 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:27:07,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:27:07,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-03-31 01:27:07,981 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:27:07,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:27:07,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1261891815, now seen corresponding path program 1 times [2023-03-31 01:27:07,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:27:07,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333262742] [2023-03-31 01:27:07,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:27:07,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:27:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:08,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:27:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:08,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:27:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:08,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:27:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:08,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:27:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:08,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 01:27:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:08,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:27:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:08,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:27:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:08,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:27:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:08,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:27:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:08,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:27:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:08,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:27:08,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:08,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:27:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:08,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:27:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:08,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:27:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:08,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-03-31 01:27:08,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:08,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-03-31 01:27:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:08,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:27:08,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:27:08,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333262742] [2023-03-31 01:27:08,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333262742] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:27:08,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:27:08,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 01:27:08,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664181444] [2023-03-31 01:27:08,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:27:08,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 01:27:08,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:27:08,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 01:27:08,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-03-31 01:27:08,351 INFO L87 Difference]: Start difference. First operand 1981 states and 2782 transitions. Second operand has 10 states, 10 states have (on average 12.8) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:27:11,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:27:11,779 INFO L93 Difference]: Finished difference Result 5834 states and 8791 transitions. [2023-03-31 01:27:11,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-03-31 01:27:11,780 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 165 [2023-03-31 01:27:11,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:27:11,800 INFO L225 Difference]: With dead ends: 5834 [2023-03-31 01:27:11,800 INFO L226 Difference]: Without dead ends: 3879 [2023-03-31 01:27:11,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2023-03-31 01:27:11,810 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3260 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1824 mSolverCounterSat, 993 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3260 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 2817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 993 IncrementalHoareTripleChecker+Valid, 1824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-03-31 01:27:11,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3260 Valid, 15 Invalid, 2817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [993 Valid, 1824 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-03-31 01:27:11,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3879 states. [2023-03-31 01:27:12,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3879 to 2583. [2023-03-31 01:27:12,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2583 states, 2011 states have (on average 1.4072600696171058) internal successors, (2830), 2101 states have internal predecessors, (2830), 310 states have call successors, (310), 240 states have call predecessors, (310), 261 states have return successors, (374), 312 states have call predecessors, (374), 307 states have call successors, (374) [2023-03-31 01:27:12,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2583 states to 2583 states and 3514 transitions. [2023-03-31 01:27:12,597 INFO L78 Accepts]: Start accepts. Automaton has 2583 states and 3514 transitions. Word has length 165 [2023-03-31 01:27:12,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:27:12,598 INFO L495 AbstractCegarLoop]: Abstraction has 2583 states and 3514 transitions. [2023-03-31 01:27:12,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:27:12,598 INFO L276 IsEmpty]: Start isEmpty. Operand 2583 states and 3514 transitions. [2023-03-31 01:27:12,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-03-31 01:27:12,602 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:27:12,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:27:12,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-03-31 01:27:12,602 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:27:12,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:27:12,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1427856844, now seen corresponding path program 1 times [2023-03-31 01:27:12,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:27:12,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249790029] [2023-03-31 01:27:12,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:27:12,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:27:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:12,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:27:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:12,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:27:12,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:12,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:27:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:12,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:27:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:12,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 01:27:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:12,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:27:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:12,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:27:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:12,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:27:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:12,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:27:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:12,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:27:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:12,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:27:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:12,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:27:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:12,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:27:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:12,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:27:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:12,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-03-31 01:27:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:12,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-03-31 01:27:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:27:12,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:27:12,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:27:12,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249790029] [2023-03-31 01:27:12,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249790029] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:27:12,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:27:12,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:27:12,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83810114] [2023-03-31 01:27:12,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:27:12,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:27:12,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:27:12,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:27:12,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:27:12,991 INFO L87 Difference]: Start difference. First operand 2583 states and 3514 transitions. Second operand has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:27:20,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:27:20,613 INFO L93 Difference]: Finished difference Result 10227 states and 14490 transitions. [2023-03-31 01:27:20,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-03-31 01:27:20,614 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 165 [2023-03-31 01:27:20,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:27:20,655 INFO L225 Difference]: With dead ends: 10227 [2023-03-31 01:27:20,655 INFO L226 Difference]: Without dead ends: 8091 [2023-03-31 01:27:20,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-03-31 01:27:20,662 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2348 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 5405 mSolverCounterSat, 571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2388 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 5976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 5405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:27:20,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2388 Valid, 17 Invalid, 5976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [571 Valid, 5405 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-03-31 01:27:20,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8091 states. [2023-03-31 01:27:22,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8091 to 6315. [2023-03-31 01:27:22,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6315 states, 4894 states have (on average 1.401920719248059) internal successors, (6861), 5232 states have internal predecessors, (6861), 753 states have call successors, (753), 550 states have call predecessors, (753), 667 states have return successors, (1129), 759 states have call predecessors, (1129), 750 states have call successors, (1129) [2023-03-31 01:27:22,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6315 states to 6315 states and 8743 transitions. [2023-03-31 01:27:22,228 INFO L78 Accepts]: Start accepts. Automaton has 6315 states and 8743 transitions. Word has length 165 [2023-03-31 01:27:22,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:27:22,228 INFO L495 AbstractCegarLoop]: Abstraction has 6315 states and 8743 transitions. [2023-03-31 01:27:22,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 01:27:22,229 INFO L276 IsEmpty]: Start isEmpty. Operand 6315 states and 8743 transitions. [2023-03-31 01:27:22,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-03-31 01:27:22,234 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:27:22,235 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:27:22,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-03-31 01:27:22,235 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:27:22,235 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:27:22,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1919058486, now seen corresponding path program 1 times [2023-03-31 01:27:22,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:27:22,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681220504] [2023-03-31 01:27:22,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:27:22,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:27:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat