/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 19:12:09,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 19:12:09,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 19:12:09,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 19:12:09,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 19:12:09,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 19:12:09,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 19:12:09,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 19:12:09,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 19:12:09,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 19:12:09,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 19:12:09,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 19:12:09,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 19:12:09,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 19:12:09,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 19:12:09,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 19:12:09,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 19:12:09,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 19:12:09,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 19:12:09,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 19:12:09,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 19:12:09,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 19:12:09,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 19:12:09,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 19:12:09,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 19:12:09,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 19:12:09,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 19:12:09,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 19:12:09,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 19:12:09,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 19:12:09,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 19:12:09,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 19:12:09,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 19:12:09,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 19:12:09,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 19:12:09,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 19:12:09,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 19:12:09,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 19:12:09,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 19:12:09,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 19:12:09,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 19:12:09,611 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 19:12:09,640 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 19:12:09,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 19:12:09,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 19:12:09,646 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 19:12:09,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 19:12:09,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 19:12:09,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 19:12:09,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 19:12:09,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 19:12:09,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 19:12:09,649 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 19:12:09,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 19:12:09,650 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 19:12:09,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 19:12:09,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 19:12:09,651 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 19:12:09,651 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 19:12:09,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 19:12:09,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 19:12:09,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 19:12:09,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 19:12:09,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 19:12:09,653 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 19:12:10,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 19:12:10,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 19:12:10,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 19:12:10,113 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 19:12:10,114 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 19:12:10,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c [2021-02-23 19:12:10,203 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/173d89487/01570987c7a74d20b7f87a41561f31dc/FLAGfea4e09cb [2021-02-23 19:12:11,149 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 19:12:11,150 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.15.cil.c [2021-02-23 19:12:11,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/173d89487/01570987c7a74d20b7f87a41561f31dc/FLAGfea4e09cb [2021-02-23 19:12:11,360 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/173d89487/01570987c7a74d20b7f87a41561f31dc [2021-02-23 19:12:11,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 19:12:11,380 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 19:12:11,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 19:12:11,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 19:12:11,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 19:12:11,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:12:11" (1/1) ... [2021-02-23 19:12:11,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f2982fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:12:11, skipping insertion in model container [2021-02-23 19:12:11,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:12:11" (1/1) ... [2021-02-23 19:12:11,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 19:12:11,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 19:12:11,735 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.15.cil.c[401,414] [2021-02-23 19:12:11,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 19:12:12,017 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 19:12:12,035 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.15.cil.c[401,414] [2021-02-23 19:12:12,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 19:12:12,224 INFO L208 MainTranslator]: Completed translation [2021-02-23 19:12:12,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:12:12 WrapperNode [2021-02-23 19:12:12,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 19:12:12,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 19:12:12,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 19:12:12,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 19:12:12,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:12:12" (1/1) ... [2021-02-23 19:12:12,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:12:12" (1/1) ... [2021-02-23 19:12:12,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:12:12" (1/1) ... [2021-02-23 19:12:12,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:12:12" (1/1) ... [2021-02-23 19:12:12,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:12:12" (1/1) ... [2021-02-23 19:12:12,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:12:12" (1/1) ... [2021-02-23 19:12:12,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:12:12" (1/1) ... [2021-02-23 19:12:12,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 19:12:12,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 19:12:12,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 19:12:12,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 19:12:12,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:12:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 19:12:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 19:12:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 19:12:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 19:12:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-02-23 19:12:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2021-02-23 19:12:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2021-02-23 19:12:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2021-02-23 19:12:12,515 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2021-02-23 19:12:12,515 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2021-02-23 19:12:12,515 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2021-02-23 19:12:12,515 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2021-02-23 19:12:12,515 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2021-02-23 19:12:12,515 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2021-02-23 19:12:12,516 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2021-02-23 19:12:12,516 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2021-02-23 19:12:12,516 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2021-02-23 19:12:12,516 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2021-02-23 19:12:12,516 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2021-02-23 19:12:12,517 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2021-02-23 19:12:12,517 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2021-02-23 19:12:12,517 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2021-02-23 19:12:12,517 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2021-02-23 19:12:12,517 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2021-02-23 19:12:12,517 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2021-02-23 19:12:12,518 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2021-02-23 19:12:12,518 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2021-02-23 19:12:12,518 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2021-02-23 19:12:12,518 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2021-02-23 19:12:12,518 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2021-02-23 19:12:12,518 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2021-02-23 19:12:12,518 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2021-02-23 19:12:12,519 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2021-02-23 19:12:12,519 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-02-23 19:12:12,519 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2021-02-23 19:12:12,519 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-02-23 19:12:12,519 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2021-02-23 19:12:12,519 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-02-23 19:12:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-02-23 19:12:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-02-23 19:12:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-02-23 19:12:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2021-02-23 19:12:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2021-02-23 19:12:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2021-02-23 19:12:12,521 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2021-02-23 19:12:12,521 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2021-02-23 19:12:12,521 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 19:12:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 19:12:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 19:12:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 19:12:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 19:12:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 19:12:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-02-23 19:12:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2021-02-23 19:12:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2021-02-23 19:12:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2021-02-23 19:12:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2021-02-23 19:12:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2021-02-23 19:12:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2021-02-23 19:12:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2021-02-23 19:12:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2021-02-23 19:12:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2021-02-23 19:12:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2021-02-23 19:12:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2021-02-23 19:12:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2021-02-23 19:12:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2021-02-23 19:12:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2021-02-23 19:12:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-02-23 19:12:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure master [2021-02-23 19:12:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2021-02-23 19:12:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2021-02-23 19:12:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2021-02-23 19:12:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2021-02-23 19:12:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2021-02-23 19:12:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2021-02-23 19:12:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2021-02-23 19:12:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2021-02-23 19:12:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2021-02-23 19:12:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2021-02-23 19:12:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2021-02-23 19:12:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2021-02-23 19:12:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2021-02-23 19:12:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-02-23 19:12:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2021-02-23 19:12:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-02-23 19:12:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2021-02-23 19:12:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-02-23 19:12:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-02-23 19:12:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-02-23 19:12:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2021-02-23 19:12:12,528 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2021-02-23 19:12:12,528 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2021-02-23 19:12:12,528 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2021-02-23 19:12:12,528 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2021-02-23 19:12:12,528 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 19:12:12,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 19:12:12,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 19:12:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 19:12:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 19:12:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 19:12:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 19:12:14,016 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 19:12:14,016 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-02-23 19:12:14,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:12:14 BoogieIcfgContainer [2021-02-23 19:12:14,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 19:12:14,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 19:12:14,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 19:12:14,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 19:12:14,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 07:12:11" (1/3) ... [2021-02-23 19:12:14,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd88426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:12:14, skipping insertion in model container [2021-02-23 19:12:14,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:12:12" (2/3) ... [2021-02-23 19:12:14,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd88426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:12:14, skipping insertion in model container [2021-02-23 19:12:14,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:12:14" (3/3) ... [2021-02-23 19:12:14,032 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2021-02-23 19:12:14,041 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 19:12:14,048 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 19:12:14,071 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 19:12:14,100 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 19:12:14,100 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 19:12:14,100 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 19:12:14,101 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 19:12:14,101 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 19:12:14,101 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 19:12:14,101 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 19:12:14,101 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 19:12:14,141 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states. [2021-02-23 19:12:14,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-02-23 19:12:14,186 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:12:14,188 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:12:14,188 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:12:14,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:12:14,197 INFO L82 PathProgramCache]: Analyzing trace with hash 2085248471, now seen corresponding path program 1 times [2021-02-23 19:12:14,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:12:14,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070668784] [2021-02-23 19:12:14,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:12:14,289 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:12:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:14,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:14,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:14,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:14,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:14,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:14,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,286 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-23 19:12:15,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:12:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 19:12:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:12:15,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 19:12:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-23 19:12:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:12:15,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-23 19:12:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-23 19:12:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:12:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:12:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 19:12:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-23 19:12:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-23 19:12:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-23 19:12:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-23 19:12:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:12:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-23 19:12:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-23 19:12:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-02-23 19:12:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 19:12:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 19:12:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-23 19:12:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-02-23 19:12:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:15,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-02-23 19:12:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:15,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:15,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:16,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:12:16,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070668784] [2021-02-23 19:12:16,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:12:16,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 19:12:16,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374455766] [2021-02-23 19:12:16,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 19:12:16,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:12:16,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 19:12:16,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-23 19:12:16,176 INFO L87 Difference]: Start difference. First operand 882 states. Second operand 8 states. [2021-02-23 19:12:16,451 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-23 19:12:16,749 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-23 19:12:17,694 WARN L202 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-23 19:12:17,888 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-23 19:12:18,052 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-23 19:12:18,617 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-23 19:12:18,863 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-23 19:12:24,740 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-23 19:12:30,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:12:30,437 INFO L93 Difference]: Finished difference Result 2267 states and 3110 transitions. [2021-02-23 19:12:30,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-23 19:12:30,439 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 394 [2021-02-23 19:12:30,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:12:30,477 INFO L225 Difference]: With dead ends: 2267 [2021-02-23 19:12:30,477 INFO L226 Difference]: Without dead ends: 1482 [2021-02-23 19:12:30,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2021-02-23 19:12:30,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2021-02-23 19:12:31,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 870. [2021-02-23 19:12:31,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 870 states. [2021-02-23 19:12:31,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1098 transitions. [2021-02-23 19:12:31,324 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1098 transitions. Word has length 394 [2021-02-23 19:12:31,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:12:31,327 INFO L480 AbstractCegarLoop]: Abstraction has 870 states and 1098 transitions. [2021-02-23 19:12:31,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 19:12:31,328 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1098 transitions. [2021-02-23 19:12:31,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-02-23 19:12:31,348 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:12:31,350 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:12:31,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 19:12:31,351 INFO L428 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:12:31,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:12:31,359 INFO L82 PathProgramCache]: Analyzing trace with hash 665851255, now seen corresponding path program 1 times [2021-02-23 19:12:31,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:12:31,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918344501] [2021-02-23 19:12:31,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:12:31,374 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:12:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:31,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:31,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:31,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:31,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:31,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:31,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:31,939 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-23 19:12:31,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:12:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:31,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:31,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 19:12:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:12:32,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 19:12:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-23 19:12:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:12:32,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-23 19:12:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-23 19:12:32,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:12:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:12:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 19:12:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-23 19:12:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-23 19:12:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-23 19:12:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-23 19:12:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:12:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-23 19:12:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-23 19:12:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-02-23 19:12:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 19:12:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 19:12:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-23 19:12:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-02-23 19:12:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-02-23 19:12:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:32,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:32,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:32,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:12:32,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918344501] [2021-02-23 19:12:32,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:12:32,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 19:12:32,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021374691] [2021-02-23 19:12:32,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 19:12:32,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:12:32,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 19:12:32,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-23 19:12:32,901 INFO L87 Difference]: Start difference. First operand 870 states and 1098 transitions. Second operand 8 states. [2021-02-23 19:12:33,153 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-23 19:12:33,402 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-23 19:12:34,199 WARN L202 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-23 19:12:34,383 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-23 19:12:34,556 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-23 19:12:35,086 WARN L202 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-23 19:12:35,315 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-23 19:12:40,804 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-23 19:12:46,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:12:46,234 INFO L93 Difference]: Finished difference Result 2235 states and 2913 transitions. [2021-02-23 19:12:46,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-23 19:12:46,235 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 394 [2021-02-23 19:12:46,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:12:46,248 INFO L225 Difference]: With dead ends: 2235 [2021-02-23 19:12:46,249 INFO L226 Difference]: Without dead ends: 1481 [2021-02-23 19:12:46,254 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-02-23 19:12:46,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2021-02-23 19:12:46,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 869. [2021-02-23 19:12:46,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2021-02-23 19:12:46,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1096 transitions. [2021-02-23 19:12:46,824 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1096 transitions. Word has length 394 [2021-02-23 19:12:46,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:12:46,825 INFO L480 AbstractCegarLoop]: Abstraction has 869 states and 1096 transitions. [2021-02-23 19:12:46,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 19:12:46,826 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1096 transitions. [2021-02-23 19:12:46,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-02-23 19:12:46,835 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:12:46,835 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:12:46,836 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 19:12:46,836 INFO L428 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:12:46,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:12:46,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1155702039, now seen corresponding path program 1 times [2021-02-23 19:12:46,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:12:46,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478019882] [2021-02-23 19:12:46,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:12:46,841 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:12:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:46,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,321 WARN L202 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-23 19:12:47,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:12:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 19:12:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:12:47,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 19:12:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-23 19:12:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:12:47,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-23 19:12:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-23 19:12:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:12:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:12:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 19:12:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-23 19:12:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-23 19:12:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-23 19:12:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-23 19:12:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:12:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-23 19:12:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-23 19:12:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-02-23 19:12:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 19:12:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 19:12:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-23 19:12:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-02-23 19:12:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-02-23 19:12:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:47,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:47,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:47,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:12:47,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478019882] [2021-02-23 19:12:47,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:12:47,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 19:12:47,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292375949] [2021-02-23 19:12:47,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 19:12:47,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:12:47,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 19:12:47,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-23 19:12:47,869 INFO L87 Difference]: Start difference. First operand 869 states and 1096 transitions. Second operand 8 states. [2021-02-23 19:12:48,108 WARN L202 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-23 19:12:48,352 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-23 19:12:49,140 WARN L202 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-23 19:12:49,326 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-23 19:12:49,512 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-23 19:12:50,033 WARN L202 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-23 19:12:50,260 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-23 19:12:55,404 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-23 19:13:00,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:13:00,868 INFO L93 Difference]: Finished difference Result 2228 states and 2903 transitions. [2021-02-23 19:13:00,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-23 19:13:00,869 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 394 [2021-02-23 19:13:00,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:13:00,880 INFO L225 Difference]: With dead ends: 2228 [2021-02-23 19:13:00,881 INFO L226 Difference]: Without dead ends: 1480 [2021-02-23 19:13:00,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-02-23 19:13:00,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2021-02-23 19:13:01,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 868. [2021-02-23 19:13:01,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 868 states. [2021-02-23 19:13:01,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1094 transitions. [2021-02-23 19:13:01,367 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1094 transitions. Word has length 394 [2021-02-23 19:13:01,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:13:01,368 INFO L480 AbstractCegarLoop]: Abstraction has 868 states and 1094 transitions. [2021-02-23 19:13:01,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 19:13:01,368 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1094 transitions. [2021-02-23 19:13:01,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-02-23 19:13:01,373 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:13:01,373 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:13:01,374 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 19:13:01,374 INFO L428 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:13:01,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:13:01,375 INFO L82 PathProgramCache]: Analyzing trace with hash -624298825, now seen corresponding path program 1 times [2021-02-23 19:13:01,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:13:01,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587259724] [2021-02-23 19:13:01,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:13:01,378 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:13:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:01,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:01,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:01,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:01,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:13:01,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:01,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:01,883 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-23 19:13:01,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:13:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:01,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:01,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:01,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 19:13:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:01,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:01,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:01,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:01,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:13:01,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 19:13:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:01,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:01,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-23 19:13:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:13:02,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-23 19:13:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-23 19:13:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:13:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:13:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 19:13:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-23 19:13:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-23 19:13:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-23 19:13:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-23 19:13:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:13:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-23 19:13:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-23 19:13:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-02-23 19:13:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 19:13:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 19:13:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-23 19:13:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-02-23 19:13:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-02-23 19:13:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:02,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:02,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:02,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:13:02,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587259724] [2021-02-23 19:13:02,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:13:02,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 19:13:02,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634015954] [2021-02-23 19:13:02,418 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 19:13:02,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:13:02,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 19:13:02,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-23 19:13:02,419 INFO L87 Difference]: Start difference. First operand 868 states and 1094 transitions. Second operand 8 states. [2021-02-23 19:13:02,672 WARN L202 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-23 19:13:02,919 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-23 19:13:03,778 WARN L202 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-23 19:13:03,990 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-23 19:13:04,175 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-23 19:13:04,668 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-23 19:13:04,905 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-23 19:13:10,203 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-23 19:13:15,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:13:15,779 INFO L93 Difference]: Finished difference Result 2221 states and 2893 transitions. [2021-02-23 19:13:15,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-23 19:13:15,780 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 394 [2021-02-23 19:13:15,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:13:15,790 INFO L225 Difference]: With dead ends: 2221 [2021-02-23 19:13:15,791 INFO L226 Difference]: Without dead ends: 1479 [2021-02-23 19:13:15,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-02-23 19:13:15,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2021-02-23 19:13:16,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 867. [2021-02-23 19:13:16,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2021-02-23 19:13:16,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1092 transitions. [2021-02-23 19:13:16,229 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1092 transitions. Word has length 394 [2021-02-23 19:13:16,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:13:16,230 INFO L480 AbstractCegarLoop]: Abstraction has 867 states and 1092 transitions. [2021-02-23 19:13:16,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 19:13:16,230 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1092 transitions. [2021-02-23 19:13:16,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-02-23 19:13:16,234 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:13:16,235 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:13:16,235 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 19:13:16,235 INFO L428 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:13:16,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:13:16,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1538384809, now seen corresponding path program 1 times [2021-02-23 19:13:16,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:13:16,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859880303] [2021-02-23 19:13:16,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:13:16,239 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:13:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:16,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:16,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:16,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:16,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:13:16,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:16,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:16,749 WARN L202 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-23 19:13:16,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:13:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:16,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:16,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:16,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 19:13:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:16,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:16,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:16,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:16,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:13:16,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 19:13:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:16,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:16,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:16,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-23 19:13:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:16,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:16,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:16,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:16,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:13:16,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-23 19:13:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:17,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:17,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:17,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-23 19:13:17,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:17,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:17,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:17,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:13:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:17,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:17,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:17,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:13:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:17,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:17,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:17,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 19:13:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:17,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:17,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:17,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-23 19:13:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:17,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:17,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:17,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-23 19:13:17,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:17,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:17,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:17,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-23 19:13:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:17,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:17,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:17,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-23 19:13:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:17,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:17,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:17,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:13:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:17,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:17,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:17,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-23 19:13:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:17,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:17,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:17,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-23 19:13:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:17,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:17,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:17,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-02-23 19:13:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:17,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:17,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:17,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 19:13:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:17,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:17,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:17,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 19:13:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:17,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:17,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:17,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-23 19:13:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:17,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:17,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:17,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-02-23 19:13:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:17,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:17,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:17,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-02-23 19:13:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:17,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:17,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:17,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:13:17,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859880303] [2021-02-23 19:13:17,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:13:17,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 19:13:17,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082646769] [2021-02-23 19:13:17,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 19:13:17,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:13:17,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 19:13:17,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-23 19:13:17,355 INFO L87 Difference]: Start difference. First operand 867 states and 1092 transitions. Second operand 8 states. [2021-02-23 19:13:17,591 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-23 19:13:17,832 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-23 19:13:18,628 WARN L202 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-23 19:13:18,802 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-23 19:13:19,007 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-23 19:13:19,489 WARN L202 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-23 19:13:19,715 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-23 19:13:24,792 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-23 19:13:30,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:13:30,138 INFO L93 Difference]: Finished difference Result 2214 states and 2883 transitions. [2021-02-23 19:13:30,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-23 19:13:30,139 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 394 [2021-02-23 19:13:30,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:13:30,149 INFO L225 Difference]: With dead ends: 2214 [2021-02-23 19:13:30,149 INFO L226 Difference]: Without dead ends: 1478 [2021-02-23 19:13:30,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-02-23 19:13:30,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2021-02-23 19:13:30,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 866. [2021-02-23 19:13:30,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2021-02-23 19:13:30,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1090 transitions. [2021-02-23 19:13:30,658 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1090 transitions. Word has length 394 [2021-02-23 19:13:30,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:13:30,659 INFO L480 AbstractCegarLoop]: Abstraction has 866 states and 1090 transitions. [2021-02-23 19:13:30,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 19:13:30,659 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1090 transitions. [2021-02-23 19:13:30,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-02-23 19:13:30,664 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:13:30,664 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:13:30,664 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 19:13:30,665 INFO L428 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:13:30,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:13:30,666 INFO L82 PathProgramCache]: Analyzing trace with hash 274142199, now seen corresponding path program 1 times [2021-02-23 19:13:30,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:13:30,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902478899] [2021-02-23 19:13:30,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:13:30,670 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:13:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:30,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:30,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:30,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:30,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:13:30,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:30,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,148 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-23 19:13:31,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:13:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 19:13:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:13:31,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 19:13:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-23 19:13:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:13:31,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-23 19:13:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-23 19:13:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:13:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:13:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 19:13:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-23 19:13:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-23 19:13:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-23 19:13:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-23 19:13:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:13:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-23 19:13:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-23 19:13:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-02-23 19:13:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,427 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,428 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 19:13:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 19:13:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-23 19:13:31,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-02-23 19:13:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-02-23 19:13:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:31,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:31,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:31,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:13:31,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902478899] [2021-02-23 19:13:31,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:13:31,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 19:13:31,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803789429] [2021-02-23 19:13:31,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 19:13:31,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:13:31,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 19:13:31,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-23 19:13:31,689 INFO L87 Difference]: Start difference. First operand 866 states and 1090 transitions. Second operand 8 states. [2021-02-23 19:13:31,924 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-23 19:13:32,162 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-23 19:13:32,945 WARN L202 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-23 19:13:33,116 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-23 19:13:33,337 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-23 19:13:33,826 WARN L202 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-23 19:13:34,051 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-23 19:13:39,195 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-23 19:13:44,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:13:44,623 INFO L93 Difference]: Finished difference Result 2207 states and 2873 transitions. [2021-02-23 19:13:44,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-23 19:13:44,624 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 394 [2021-02-23 19:13:44,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:13:44,633 INFO L225 Difference]: With dead ends: 2207 [2021-02-23 19:13:44,633 INFO L226 Difference]: Without dead ends: 1477 [2021-02-23 19:13:44,637 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-02-23 19:13:44,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2021-02-23 19:13:45,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 865. [2021-02-23 19:13:45,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 865 states. [2021-02-23 19:13:45,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1088 transitions. [2021-02-23 19:13:45,152 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1088 transitions. Word has length 394 [2021-02-23 19:13:45,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:13:45,152 INFO L480 AbstractCegarLoop]: Abstraction has 865 states and 1088 transitions. [2021-02-23 19:13:45,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 19:13:45,152 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1088 transitions. [2021-02-23 19:13:45,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-02-23 19:13:45,156 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:13:45,156 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:13:45,156 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 19:13:45,157 INFO L428 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:13:45,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:13:45,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1103944599, now seen corresponding path program 1 times [2021-02-23 19:13:45,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:13:45,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11094340] [2021-02-23 19:13:45,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:13:45,161 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:13:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:13:45,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,661 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-23 19:13:45,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:13:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 19:13:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:13:45,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 19:13:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-23 19:13:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:13:45,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-23 19:13:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-23 19:13:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:13:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:13:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 19:13:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-23 19:13:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-23 19:13:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-23 19:13:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-23 19:13:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:13:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-23 19:13:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-23 19:13:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-02-23 19:13:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 19:13:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 19:13:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-23 19:13:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-02-23 19:13:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:45,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-02-23 19:13:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:45,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:45,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:46,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:13:46,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11094340] [2021-02-23 19:13:46,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:13:46,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 19:13:46,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084222080] [2021-02-23 19:13:46,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 19:13:46,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:13:46,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 19:13:46,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-23 19:13:46,216 INFO L87 Difference]: Start difference. First operand 865 states and 1088 transitions. Second operand 8 states. [2021-02-23 19:13:46,449 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-23 19:13:46,695 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-23 19:13:47,368 WARN L202 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-23 19:13:47,546 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-23 19:13:47,753 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-23 19:13:48,233 WARN L202 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-23 19:13:48,461 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-23 19:13:53,117 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-23 19:13:57,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:13:57,581 INFO L93 Difference]: Finished difference Result 2200 states and 2863 transitions. [2021-02-23 19:13:57,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-23 19:13:57,584 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 394 [2021-02-23 19:13:57,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:13:57,593 INFO L225 Difference]: With dead ends: 2200 [2021-02-23 19:13:57,593 INFO L226 Difference]: Without dead ends: 1476 [2021-02-23 19:13:57,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-02-23 19:13:57,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2021-02-23 19:13:58,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 864. [2021-02-23 19:13:58,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 864 states. [2021-02-23 19:13:58,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1086 transitions. [2021-02-23 19:13:58,109 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1086 transitions. Word has length 394 [2021-02-23 19:13:58,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:13:58,109 INFO L480 AbstractCegarLoop]: Abstraction has 864 states and 1086 transitions. [2021-02-23 19:13:58,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 19:13:58,109 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1086 transitions. [2021-02-23 19:13:58,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-02-23 19:13:58,112 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:13:58,112 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:13:58,112 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 19:13:58,112 INFO L428 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:13:58,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:13:58,113 INFO L82 PathProgramCache]: Analyzing trace with hash 261583671, now seen corresponding path program 1 times [2021-02-23 19:13:58,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:13:58,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1922560173] [2021-02-23 19:13:58,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:13:58,116 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:13:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:58,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:58,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:58,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:58,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:13:58,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:58,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:13:58,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:58,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:13:58,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:58,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:58,696 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-23 19:13:58,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:13:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:58,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:58,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:58,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 19:13:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:58,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:58,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:58,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 19:13:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:58,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:58,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:58,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-23 19:13:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:58,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:58,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:58,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:58,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:13:58,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-23 19:13:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:58,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:58,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:58,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-23 19:13:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:58,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:58,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:13:58,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:13:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:58,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:58,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:58,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:13:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:59,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:59,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:59,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 19:13:59,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:59,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:59,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:59,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-23 19:13:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:59,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:59,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:59,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-23 19:13:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:59,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:59,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:59,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-23 19:13:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:59,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:59,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:59,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-23 19:13:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:59,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:59,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:59,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:13:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:59,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:59,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:59,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-23 19:13:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:59,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:59,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:59,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-23 19:13:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:59,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:59,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:59,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-02-23 19:13:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:59,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:59,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:59,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 19:13:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:59,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:59,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:59,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 19:13:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:59,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:59,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:59,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-23 19:13:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:59,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:59,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:59,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-02-23 19:13:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:59,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:59,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:59,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-02-23 19:13:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:59,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:59,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:59,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:59,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:13:59,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:13:59,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1922560173] [2021-02-23 19:13:59,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:13:59,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 19:13:59,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609581514] [2021-02-23 19:13:59,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 19:13:59,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:13:59,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 19:13:59,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-02-23 19:13:59,360 INFO L87 Difference]: Start difference. First operand 864 states and 1086 transitions. Second operand 8 states. [2021-02-23 19:13:59,599 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-23 19:13:59,852 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-23 19:14:00,518 WARN L202 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-23 19:14:00,691 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-23 19:14:01,008 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-23 19:14:01,202 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-02-23 19:14:03,244 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-23 19:14:08,699 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-23 19:14:21,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:14:21,298 INFO L93 Difference]: Finished difference Result 4153 states and 5621 transitions. [2021-02-23 19:14:21,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-23 19:14:21,299 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 394 [2021-02-23 19:14:21,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:14:21,318 INFO L225 Difference]: With dead ends: 4153 [2021-02-23 19:14:21,319 INFO L226 Difference]: Without dead ends: 3435 [2021-02-23 19:14:21,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2021-02-23 19:14:21,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2021-02-23 19:14:22,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 1837. [2021-02-23 19:14:22,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1837 states. [2021-02-23 19:14:22,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1837 states to 1837 states and 2363 transitions. [2021-02-23 19:14:22,679 INFO L78 Accepts]: Start accepts. Automaton has 1837 states and 2363 transitions. Word has length 394 [2021-02-23 19:14:22,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:14:22,680 INFO L480 AbstractCegarLoop]: Abstraction has 1837 states and 2363 transitions. [2021-02-23 19:14:22,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 19:14:22,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1837 states and 2363 transitions. [2021-02-23 19:14:22,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2021-02-23 19:14:22,686 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:14:22,686 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:14:22,686 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 19:14:22,687 INFO L428 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:14:22,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:14:22,687 INFO L82 PathProgramCache]: Analyzing trace with hash 433299855, now seen corresponding path program 1 times [2021-02-23 19:14:22,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:14:22,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835664300] [2021-02-23 19:14:22,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:14:22,691 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:14:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:22,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:22,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:22,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:22,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:14:22,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:22,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,162 WARN L202 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-23 19:14:23,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:14:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 19:14:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:14:23,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 19:14:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-23 19:14:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:14:23,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-23 19:14:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-23 19:14:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:14:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:14:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 19:14:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-23 19:14:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-23 19:14:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-23 19:14:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-23 19:14:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:14:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-23 19:14:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-23 19:14:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-02-23 19:14:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 19:14:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 19:14:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-23 19:14:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-02-23 19:14:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-02-23 19:14:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:23,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:23,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:23,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:14:23,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835664300] [2021-02-23 19:14:23,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:14:23,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 19:14:23,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567939074] [2021-02-23 19:14:23,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 19:14:23,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:14:23,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 19:14:23,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-23 19:14:23,617 INFO L87 Difference]: Start difference. First operand 1837 states and 2363 transitions. Second operand 8 states. [2021-02-23 19:14:23,861 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-23 19:14:24,121 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-23 19:14:24,912 WARN L202 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-23 19:14:25,084 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-23 19:14:25,628 WARN L202 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-23 19:14:25,851 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-23 19:14:30,743 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-23 19:14:38,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:14:38,302 INFO L93 Difference]: Finished difference Result 4797 states and 6371 transitions. [2021-02-23 19:14:38,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 19:14:38,303 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 395 [2021-02-23 19:14:38,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:14:38,322 INFO L225 Difference]: With dead ends: 4797 [2021-02-23 19:14:38,322 INFO L226 Difference]: Without dead ends: 3104 [2021-02-23 19:14:38,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-02-23 19:14:38,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2021-02-23 19:14:39,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 1799. [2021-02-23 19:14:39,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1799 states. [2021-02-23 19:14:39,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2314 transitions. [2021-02-23 19:14:39,607 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2314 transitions. Word has length 395 [2021-02-23 19:14:39,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:14:39,607 INFO L480 AbstractCegarLoop]: Abstraction has 1799 states and 2314 transitions. [2021-02-23 19:14:39,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 19:14:39,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2314 transitions. [2021-02-23 19:14:39,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2021-02-23 19:14:39,611 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:14:39,612 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:14:39,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 19:14:39,612 INFO L428 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:14:39,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:14:39,613 INFO L82 PathProgramCache]: Analyzing trace with hash 912780570, now seen corresponding path program 1 times [2021-02-23 19:14:39,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:14:39,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [877510941] [2021-02-23 19:14:39,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:14:39,616 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:14:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 19:14:39,662 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 19:14:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 19:14:39,714 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 19:14:40,225 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 19:14:40,225 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 19:14:40,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 19:14:40,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 07:14:40 BoogieIcfgContainer [2021-02-23 19:14:40,304 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 19:14:40,306 INFO L168 Benchmark]: Toolchain (without parser) took 148938.95 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 924.8 MB). Free memory was 126.8 MB in the beginning and 807.9 MB in the end (delta: -681.1 MB). Peak memory consumption was 244.1 MB. Max. memory is 8.0 GB. [2021-02-23 19:14:40,306 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 19:14:40,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 839.61 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 131.4 MB in the end (delta: -5.7 MB). Peak memory consumption was 27.2 MB. Max. memory is 8.0 GB. [2021-02-23 19:14:40,307 INFO L168 Benchmark]: Boogie Preprocessor took 144.81 ms. Allocated memory is still 151.0 MB. Free memory was 131.4 MB in the beginning and 126.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-23 19:14:40,308 INFO L168 Benchmark]: RCFGBuilder took 1646.86 ms. Allocated memory was 151.0 MB in the beginning and 200.3 MB in the end (delta: 49.3 MB). Free memory was 126.7 MB in the beginning and 172.4 MB in the end (delta: -45.7 MB). Peak memory consumption was 70.2 MB. Max. memory is 8.0 GB. [2021-02-23 19:14:40,308 INFO L168 Benchmark]: TraceAbstraction took 146281.50 ms. Allocated memory was 200.3 MB in the beginning and 1.1 GB in the end (delta: 875.6 MB). Free memory was 171.9 MB in the beginning and 807.9 MB in the end (delta: -636.0 MB). Peak memory consumption was 239.0 MB. Max. memory is 8.0 GB. [2021-02-23 19:14:40,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 839.61 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 131.4 MB in the end (delta: -5.7 MB). Peak memory consumption was 27.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 144.81 ms. Allocated memory is still 151.0 MB. Free memory was 131.4 MB in the beginning and 126.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1646.86 ms. Allocated memory was 151.0 MB in the beginning and 200.3 MB in the end (delta: 49.3 MB). Free memory was 126.7 MB in the beginning and 172.4 MB in the end (delta: -45.7 MB). Peak memory consumption was 70.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 146281.50 ms. Allocated memory was 200.3 MB in the beginning and 1.1 GB in the end (delta: 875.6 MB). Free memory was 171.9 MB in the beginning and 807.9 MB in the end (delta: -636.0 MB). Peak memory consumption was 239.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int m_pc = 0; [L18] int t1_pc = 0; [L19] int t2_pc = 0; [L20] int t3_pc = 0; [L21] int t4_pc = 0; [L22] int t5_pc = 0; [L23] int t6_pc = 0; [L24] int t7_pc = 0; [L25] int t8_pc = 0; [L26] int t9_pc = 0; [L27] int t10_pc = 0; [L28] int t11_pc = 0; [L29] int t12_pc = 0; [L30] int t13_pc = 0; [L31] int m_st ; [L32] int t1_st ; [L33] int t2_st ; [L34] int t3_st ; [L35] int t4_st ; [L36] int t5_st ; [L37] int t6_st ; [L38] int t7_st ; [L39] int t8_st ; [L40] int t9_st ; [L41] int t10_st ; [L42] int t11_st ; [L43] int t12_st ; [L44] int t13_st ; [L45] int m_i ; [L46] int t1_i ; [L47] int t2_i ; [L48] int t3_i ; [L49] int t4_i ; [L50] int t5_i ; [L51] int t6_i ; [L52] int t7_i ; [L53] int t8_i ; [L54] int t9_i ; [L55] int t10_i ; [L56] int t11_i ; [L57] int t12_i ; [L58] int t13_i ; [L59] int M_E = 2; [L60] int T1_E = 2; [L61] int T2_E = 2; [L62] int T3_E = 2; [L63] int T4_E = 2; [L64] int T5_E = 2; [L65] int T6_E = 2; [L66] int T7_E = 2; [L67] int T8_E = 2; [L68] int T9_E = 2; [L69] int T10_E = 2; [L70] int T11_E = 2; [L71] int T12_E = 2; [L72] int T13_E = 2; [L73] int E_1 = 2; [L74] int E_2 = 2; [L75] int E_3 = 2; [L76] int E_4 = 2; [L77] int E_5 = 2; [L78] int E_6 = 2; [L79] int E_7 = 2; [L80] int E_8 = 2; [L81] int E_9 = 2; [L82] int E_10 = 2; [L83] int E_11 = 2; [L84] int E_12 = 2; [L85] int E_13 = 2; [L1929] int __retres1 ; [L1933] CALL init_model() [L1832] m_i = 1 [L1833] t1_i = 1 [L1834] t2_i = 1 [L1835] t3_i = 1 [L1836] t4_i = 1 [L1837] t5_i = 1 [L1838] t6_i = 1 [L1839] t7_i = 1 [L1840] t8_i = 1 [L1841] t9_i = 1 [L1842] t10_i = 1 [L1843] t11_i = 1 [L1844] t12_i = 1 [L1845] t13_i = 1 [L1933] RET init_model() [L1934] CALL start_simulation() [L1870] int kernel_st ; [L1871] int tmp ; [L1872] int tmp___0 ; [L1876] kernel_st = 0 [L1877] FCALL update_channels() [L1878] CALL init_threads() [L873] COND TRUE m_i == 1 [L874] m_st = 0 [L878] COND TRUE t1_i == 1 [L879] t1_st = 0 [L883] COND TRUE t2_i == 1 [L884] t2_st = 0 [L888] COND TRUE t3_i == 1 [L889] t3_st = 0 [L893] COND TRUE t4_i == 1 [L894] t4_st = 0 [L898] COND TRUE t5_i == 1 [L899] t5_st = 0 [L903] COND TRUE t6_i == 1 [L904] t6_st = 0 [L908] COND TRUE t7_i == 1 [L909] t7_st = 0 [L913] COND TRUE t8_i == 1 [L914] t8_st = 0 [L918] COND TRUE t9_i == 1 [L919] t9_st = 0 [L923] COND TRUE t10_i == 1 [L924] t10_st = 0 [L928] COND TRUE t11_i == 1 [L929] t11_st = 0 [L933] COND TRUE t12_i == 1 [L934] t12_st = 0 [L938] COND TRUE t13_i == 1 [L939] t13_st = 0 [L1878] RET init_threads() [L1879] CALL fire_delta_events() [L1250] COND FALSE !(M_E == 0) [L1255] COND FALSE !(T1_E == 0) [L1260] COND FALSE !(T2_E == 0) [L1265] COND FALSE !(T3_E == 0) [L1270] COND FALSE !(T4_E == 0) [L1275] COND FALSE !(T5_E == 0) [L1280] COND FALSE !(T6_E == 0) [L1285] COND FALSE !(T7_E == 0) [L1290] COND FALSE !(T8_E == 0) [L1295] COND FALSE !(T9_E == 0) [L1300] COND FALSE !(T10_E == 0) [L1305] COND FALSE !(T11_E == 0) [L1310] COND FALSE !(T12_E == 0) [L1315] COND FALSE !(T13_E == 0) [L1320] COND FALSE !(E_1 == 0) [L1325] COND FALSE !(E_2 == 0) [L1330] COND FALSE !(E_3 == 0) [L1335] COND FALSE !(E_4 == 0) [L1340] COND FALSE !(E_5 == 0) [L1345] COND FALSE !(E_6 == 0) [L1350] COND FALSE !(E_7 == 0) [L1355] COND FALSE !(E_8 == 0) [L1360] COND FALSE !(E_9 == 0) [L1365] COND FALSE !(E_10 == 0) [L1370] COND FALSE !(E_11 == 0) [L1375] COND FALSE !(E_12 == 0) [L1380] COND FALSE !(E_13 == 0) [L1879] RET fire_delta_events() [L1880] CALL activate_threads() [L1533] int tmp ; [L1534] int tmp___0 ; [L1535] int tmp___1 ; [L1536] int tmp___2 ; [L1537] int tmp___3 ; [L1538] int tmp___4 ; [L1539] int tmp___5 ; [L1540] int tmp___6 ; [L1541] int tmp___7 ; [L1542] int tmp___8 ; [L1543] int tmp___9 ; [L1544] int tmp___10 ; [L1545] int tmp___11 ; [L1546] int tmp___12 ; [L1550] CALL, EXPR is_master_triggered() [L596] int __retres1 ; [L599] COND FALSE !(m_pc == 1) [L609] __retres1 = 0 [L611] return (__retres1); [L1550] RET, EXPR is_master_triggered() [L1550] tmp = is_master_triggered() [L1552] COND FALSE !(\read(tmp)) [L1558] CALL, EXPR is_transmit1_triggered() [L615] int __retres1 ; [L618] COND FALSE !(t1_pc == 1) [L628] __retres1 = 0 [L630] return (__retres1); [L1558] RET, EXPR is_transmit1_triggered() [L1558] tmp___0 = is_transmit1_triggered() [L1560] COND FALSE !(\read(tmp___0)) [L1566] CALL, EXPR is_transmit2_triggered() [L634] int __retres1 ; [L637] COND FALSE !(t2_pc == 1) [L647] __retres1 = 0 [L649] return (__retres1); [L1566] RET, EXPR is_transmit2_triggered() [L1566] tmp___1 = is_transmit2_triggered() [L1568] COND FALSE !(\read(tmp___1)) [L1574] CALL, EXPR is_transmit3_triggered() [L653] int __retres1 ; [L656] COND FALSE !(t3_pc == 1) [L666] __retres1 = 0 [L668] return (__retres1); [L1574] RET, EXPR is_transmit3_triggered() [L1574] tmp___2 = is_transmit3_triggered() [L1576] COND FALSE !(\read(tmp___2)) [L1582] CALL, EXPR is_transmit4_triggered() [L672] int __retres1 ; [L675] COND FALSE !(t4_pc == 1) [L685] __retres1 = 0 [L687] return (__retres1); [L1582] RET, EXPR is_transmit4_triggered() [L1582] tmp___3 = is_transmit4_triggered() [L1584] COND FALSE !(\read(tmp___3)) [L1590] CALL, EXPR is_transmit5_triggered() [L691] int __retres1 ; [L694] COND FALSE !(t5_pc == 1) [L704] __retres1 = 0 [L706] return (__retres1); [L1590] RET, EXPR is_transmit5_triggered() [L1590] tmp___4 = is_transmit5_triggered() [L1592] COND FALSE !(\read(tmp___4)) [L1598] CALL, EXPR is_transmit6_triggered() [L710] int __retres1 ; [L713] COND FALSE !(t6_pc == 1) [L723] __retres1 = 0 [L725] return (__retres1); [L1598] RET, EXPR is_transmit6_triggered() [L1598] tmp___5 = is_transmit6_triggered() [L1600] COND FALSE !(\read(tmp___5)) [L1606] CALL, EXPR is_transmit7_triggered() [L729] int __retres1 ; [L732] COND FALSE !(t7_pc == 1) [L742] __retres1 = 0 [L744] return (__retres1); [L1606] RET, EXPR is_transmit7_triggered() [L1606] tmp___6 = is_transmit7_triggered() [L1608] COND FALSE !(\read(tmp___6)) [L1614] CALL, EXPR is_transmit8_triggered() [L748] int __retres1 ; [L751] COND FALSE !(t8_pc == 1) [L761] __retres1 = 0 [L763] return (__retres1); [L1614] RET, EXPR is_transmit8_triggered() [L1614] tmp___7 = is_transmit8_triggered() [L1616] COND FALSE !(\read(tmp___7)) [L1622] CALL, EXPR is_transmit9_triggered() [L767] int __retres1 ; [L770] COND FALSE !(t9_pc == 1) [L780] __retres1 = 0 [L782] return (__retres1); [L1622] RET, EXPR is_transmit9_triggered() [L1622] tmp___8 = is_transmit9_triggered() [L1624] COND FALSE !(\read(tmp___8)) [L1630] CALL, EXPR is_transmit10_triggered() [L786] int __retres1 ; [L789] COND FALSE !(t10_pc == 1) [L799] __retres1 = 0 [L801] return (__retres1); [L1630] RET, EXPR is_transmit10_triggered() [L1630] tmp___9 = is_transmit10_triggered() [L1632] COND FALSE !(\read(tmp___9)) [L1638] CALL, EXPR is_transmit11_triggered() [L805] int __retres1 ; [L808] COND FALSE !(t11_pc == 1) [L818] __retres1 = 0 [L820] return (__retres1); [L1638] RET, EXPR is_transmit11_triggered() [L1638] tmp___10 = is_transmit11_triggered() [L1640] COND FALSE !(\read(tmp___10)) [L1646] CALL, EXPR is_transmit12_triggered() [L824] int __retres1 ; [L827] COND FALSE !(t12_pc == 1) [L837] __retres1 = 0 [L839] return (__retres1); [L1646] RET, EXPR is_transmit12_triggered() [L1646] tmp___11 = is_transmit12_triggered() [L1648] COND FALSE !(\read(tmp___11)) [L1654] CALL, EXPR is_transmit13_triggered() [L843] int __retres1 ; [L846] COND FALSE !(t13_pc == 1) [L856] __retres1 = 0 [L858] return (__retres1); [L1654] RET, EXPR is_transmit13_triggered() [L1654] tmp___12 = is_transmit13_triggered() [L1656] COND FALSE !(\read(tmp___12)) [L1880] RET activate_threads() [L1881] CALL reset_delta_events() [L1393] COND FALSE !(M_E == 1) [L1398] COND FALSE !(T1_E == 1) [L1403] COND FALSE !(T2_E == 1) [L1408] COND FALSE !(T3_E == 1) [L1413] COND FALSE !(T4_E == 1) [L1418] COND FALSE !(T5_E == 1) [L1423] COND FALSE !(T6_E == 1) [L1428] COND FALSE !(T7_E == 1) [L1433] COND FALSE !(T8_E == 1) [L1438] COND FALSE !(T9_E == 1) [L1443] COND FALSE !(T10_E == 1) [L1448] COND FALSE !(T11_E == 1) [L1453] COND FALSE !(T12_E == 1) [L1458] COND FALSE !(T13_E == 1) [L1463] COND FALSE !(E_1 == 1) [L1468] COND FALSE !(E_2 == 1) [L1473] COND FALSE !(E_3 == 1) [L1478] COND FALSE !(E_4 == 1) [L1483] COND FALSE !(E_5 == 1) [L1488] COND FALSE !(E_6 == 1) [L1493] COND FALSE !(E_7 == 1) [L1498] COND FALSE !(E_8 == 1) [L1503] COND FALSE !(E_9 == 1) [L1508] COND FALSE !(E_10 == 1) [L1513] COND FALSE !(E_11 == 1) [L1518] COND FALSE !(E_12 == 1) [L1523] COND FALSE !(E_13 == 1) [L1881] RET reset_delta_events() [L1884] COND TRUE 1 [L1887] kernel_st = 1 [L1888] CALL eval() [L1029] int tmp ; [L1033] COND TRUE 1 [L1036] CALL, EXPR exists_runnable_thread() [L948] int __retres1 ; [L951] COND TRUE m_st == 0 [L952] __retres1 = 1 [L1024] return (__retres1); [L1036] RET, EXPR exists_runnable_thread() [L1036] tmp = exists_runnable_thread() [L1038] COND TRUE \read(tmp) [L1043] COND TRUE m_st == 0 [L1044] int tmp_ndt_1; [L1045] tmp_ndt_1 = __VERIFIER_nondet_int() [L1046] COND FALSE !(\read(tmp_ndt_1)) [L1057] COND TRUE t1_st == 0 [L1058] int tmp_ndt_2; [L1059] tmp_ndt_2 = __VERIFIER_nondet_int() [L1060] COND FALSE !(\read(tmp_ndt_2)) [L1066] CALL error() [L13] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 46 procedures, 885 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 146.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 127.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6884 SDtfs, 42649 SDslu, 1753 SDs, 0 SdLazy, 30830 SolverSat, 6672 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 80.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 580 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 25.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1837occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 7187 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...