/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:25:07,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:25:07,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:25:07,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 02:25:07,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 02:25:07,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 02:25:07,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 02:25:07,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 02:25:07,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 02:25:07,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 02:25:07,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 02:25:07,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 02:25:07,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:25:07,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:25:07,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:25:07,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:25:07,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:25:07,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:25:07,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:25:07,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:25:07,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:25:07,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:25:07,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:25:07,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:25:07,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 02:25:07,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 02:25:07,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 02:25:07,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 02:25:07,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 02:25:07,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 02:25:07,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 02:25:07,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 02:25:07,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 02:25:07,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 02:25:07,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 02:25:07,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 02:25:07,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 02:25:07,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 02:25:07,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:25:07,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:25:07,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:25:07,715 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:25:07,742 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:25:07,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:25:07,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:25:07,749 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:25:07,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:25:07,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:25:07,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:25:07,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:25:07,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:25:07,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:25:07,752 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:25:07,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:25:07,753 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:25:07,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:25:07,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:25:07,754 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:25:07,754 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:25:07,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:25:07,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:25:07,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:25:07,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:25:07,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:25:07,755 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:25:07,755 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:25:08,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:25:08,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:25:08,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:25:08,393 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:25:08,395 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:25:08,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2021-02-22 02:25:08,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12c91d976/3a6628d3cf00491f8420ad7c87b0de61/FLAG9334f89f8 [2021-02-22 02:25:09,484 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:25:09,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2021-02-22 02:25:09,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12c91d976/3a6628d3cf00491f8420ad7c87b0de61/FLAG9334f89f8 [2021-02-22 02:25:09,523 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12c91d976/3a6628d3cf00491f8420ad7c87b0de61 [2021-02-22 02:25:09,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:25:09,545 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:25:09,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:25:09,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:25:09,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:25:09,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:25:09" (1/1) ... [2021-02-22 02:25:09,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ff4da07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:09, skipping insertion in model container [2021-02-22 02:25:09,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:25:09" (1/1) ... [2021-02-22 02:25:09,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:25:09,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:25:09,825 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/pc_sfifo_3.cil.c[335,348] [2021-02-22 02:25:09,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:25:09,947 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:25:09,969 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/pc_sfifo_3.cil.c[335,348] [2021-02-22 02:25:10,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:25:10,100 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:25:10,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:10 WrapperNode [2021-02-22 02:25:10,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:25:10,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:25:10,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:25:10,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:25:10,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:10" (1/1) ... [2021-02-22 02:25:10,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:10" (1/1) ... [2021-02-22 02:25:10,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:10" (1/1) ... [2021-02-22 02:25:10,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:10" (1/1) ... [2021-02-22 02:25:10,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:10" (1/1) ... [2021-02-22 02:25:10,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:10" (1/1) ... [2021-02-22 02:25:10,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:10" (1/1) ... [2021-02-22 02:25:10,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:25:10,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:25:10,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:25:10,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:25:10,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:10" (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 [2021-02-22 02:25:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:25:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:25:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:25:10,426 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-02-22 02:25:10,426 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2021-02-22 02:25:10,426 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2021-02-22 02:25:10,426 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2021-02-22 02:25:10,427 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2021-02-22 02:25:10,429 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2021-02-22 02:25:10,430 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2021-02-22 02:25:10,430 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-02-22 02:25:10,430 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2021-02-22 02:25:10,431 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-02-22 02:25:10,432 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-02-22 02:25:10,433 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-02-22 02:25:10,433 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2021-02-22 02:25:10,434 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2021-02-22 02:25:10,436 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-02-22 02:25:10,436 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2021-02-22 02:25:10,440 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2021-02-22 02:25:10,441 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2021-02-22 02:25:10,441 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2021-02-22 02:25:10,441 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:25:10,441 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:25:10,442 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:25:10,442 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:25:10,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:25:10,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:25:10,442 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-02-22 02:25:10,443 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2021-02-22 02:25:10,443 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2021-02-22 02:25:10,443 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2021-02-22 02:25:10,443 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2021-02-22 02:25:10,443 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2021-02-22 02:25:10,444 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2021-02-22 02:25:10,444 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-02-22 02:25:10,444 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2021-02-22 02:25:10,444 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-02-22 02:25:10,444 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-02-22 02:25:10,444 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-02-22 02:25:10,445 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2021-02-22 02:25:10,445 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2021-02-22 02:25:10,445 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-02-22 02:25:10,445 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2021-02-22 02:25:10,446 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2021-02-22 02:25:10,446 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2021-02-22 02:25:10,446 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2021-02-22 02:25:10,446 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:25:10,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:25:10,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:25:10,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:25:10,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:25:10,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:25:10,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:25:11,820 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: ~a_t~0 := ~a~0; [2021-02-22 02:25:11,821 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L211: ~c_dr_st~0 := 2; [2021-02-22 02:25:11,821 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume 1 == ~q_free~0; [2021-02-22 02:25:11,821 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2021-02-22 02:25:11,822 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L212: ~c_dr_pc~0 := 2; [2021-02-22 02:25:11,874 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:25:11,874 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-02-22 02:25:11,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:25:11 BoogieIcfgContainer [2021-02-22 02:25:11,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:25:11,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:25:11,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:25:11,887 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:25:11,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:25:09" (1/3) ... [2021-02-22 02:25:11,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8f2cb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:25:11, skipping insertion in model container [2021-02-22 02:25:11,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:10" (2/3) ... [2021-02-22 02:25:11,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8f2cb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:25:11, skipping insertion in model container [2021-02-22 02:25:11,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:25:11" (3/3) ... [2021-02-22 02:25:11,893 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2021-02-22 02:25:11,902 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:25:11,913 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:25:11,943 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:25:11,985 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:25:11,986 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:25:11,986 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:25:11,986 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:25:11,986 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:25:11,987 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:25:11,987 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:25:11,987 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:25:12,017 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states. [2021-02-22 02:25:12,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-02-22 02:25:12,044 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:25:12,045 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] [2021-02-22 02:25:12,046 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:25:12,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:25:12,056 INFO L82 PathProgramCache]: Analyzing trace with hash -690017505, now seen corresponding path program 1 times [2021-02-22 02:25:12,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:25:12,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453609970] [2021-02-22 02:25:12,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:25:12,189 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:25:12,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:12,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:12,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:12,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:12,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:12,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:12,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:12,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:12,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:12,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:12,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:25:12,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:12,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:13,069 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:25:13,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:13,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:13,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:13,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:13,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:13,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-22 02:25:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:13,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:13,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:13,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:13,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:13,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-22 02:25:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:13,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:13,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:25:13,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-22 02:25:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:13,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:13,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:13,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-02-22 02:25:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:13,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:13,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:13,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-02-22 02:25:13,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:13,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:13,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:13,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:13,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:25:13,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:13,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:13,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:13,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:13,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:25:13,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 02:25:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:13,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:13,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:13,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-22 02:25:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:13,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:13,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:13,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 02:25:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:13,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:13,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:13,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:25:13,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453609970] [2021-02-22 02:25:13,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:25:13,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 02:25:13,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826176584] [2021-02-22 02:25:13,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 02:25:13,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:25:13,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 02:25:13,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-02-22 02:25:13,720 INFO L87 Difference]: Start difference. First operand 273 states. Second operand 13 states. [2021-02-22 02:25:14,483 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2021-02-22 02:25:16,635 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2021-02-22 02:25:17,791 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-22 02:25:18,918 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2021-02-22 02:25:20,722 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2021-02-22 02:25:21,378 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-22 02:25:22,968 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-22 02:25:24,119 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-22 02:25:32,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:25:32,045 INFO L93 Difference]: Finished difference Result 2150 states and 3109 transitions. [2021-02-22 02:25:32,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-02-22 02:25:32,048 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 140 [2021-02-22 02:25:32,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:25:32,093 INFO L225 Difference]: With dead ends: 2150 [2021-02-22 02:25:32,094 INFO L226 Difference]: Without dead ends: 1875 [2021-02-22 02:25:32,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3585 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1275, Invalid=8037, Unknown=0, NotChecked=0, Total=9312 [2021-02-22 02:25:32,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1875 states. [2021-02-22 02:25:32,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1875 to 1315. [2021-02-22 02:25:32,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1315 states. [2021-02-22 02:25:32,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1603 transitions. [2021-02-22 02:25:32,661 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1603 transitions. Word has length 140 [2021-02-22 02:25:32,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:25:32,665 INFO L480 AbstractCegarLoop]: Abstraction has 1315 states and 1603 transitions. [2021-02-22 02:25:32,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 02:25:32,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1603 transitions. [2021-02-22 02:25:32,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-02-22 02:25:32,685 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:25:32,686 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] [2021-02-22 02:25:32,687 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:25:32,688 INFO L428 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:25:32,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:25:32,689 INFO L82 PathProgramCache]: Analyzing trace with hash 965313352, now seen corresponding path program 1 times [2021-02-22 02:25:32,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:25:32,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1612063002] [2021-02-22 02:25:32,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:25:32,712 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:25:32,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:32,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:32,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:32,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:32,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:32,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:32,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:32,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:32,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:32,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:32,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:33,048 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:25:33,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:33,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:33,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:33,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-22 02:25:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:33,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:33,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:33,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-22 02:25:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:33,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:33,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:33,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-22 02:25:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:33,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:33,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:33,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:33,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:33,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-02-22 02:25:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:33,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:33,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:33,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-02-22 02:25:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:33,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:33,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:33,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:33,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:33,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:33,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 02:25:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:33,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:33,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:33,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-22 02:25:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:33,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:33,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:33,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 02:25:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:33,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:33,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:33,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:33,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:33,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:25:33,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1612063002] [2021-02-22 02:25:33,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:25:33,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 02:25:33,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085502380] [2021-02-22 02:25:33,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 02:25:33,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:25:33,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 02:25:33,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-02-22 02:25:33,472 INFO L87 Difference]: Start difference. First operand 1315 states and 1603 transitions. Second operand 9 states. [2021-02-22 02:25:33,787 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-22 02:25:41,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:25:41,671 INFO L93 Difference]: Finished difference Result 5283 states and 8021 transitions. [2021-02-22 02:25:41,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-22 02:25:41,672 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 140 [2021-02-22 02:25:41,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:25:41,724 INFO L225 Difference]: With dead ends: 5283 [2021-02-22 02:25:41,725 INFO L226 Difference]: Without dead ends: 4033 [2021-02-22 02:25:41,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=259, Invalid=611, Unknown=0, NotChecked=0, Total=870 [2021-02-22 02:25:41,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4033 states. [2021-02-22 02:25:42,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4033 to 2555. [2021-02-22 02:25:42,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2555 states. [2021-02-22 02:25:42,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 3236 transitions. [2021-02-22 02:25:42,578 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 3236 transitions. Word has length 140 [2021-02-22 02:25:42,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:25:42,584 INFO L480 AbstractCegarLoop]: Abstraction has 2555 states and 3236 transitions. [2021-02-22 02:25:42,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 02:25:42,584 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 3236 transitions. [2021-02-22 02:25:42,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-02-22 02:25:42,597 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:25:42,597 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] [2021-02-22 02:25:42,598 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 02:25:42,599 INFO L428 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:25:42,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:25:42,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1732617692, now seen corresponding path program 1 times [2021-02-22 02:25:42,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:25:42,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911391619] [2021-02-22 02:25:42,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:25:42,610 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:25:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:42,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:42,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:42,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:42,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:42,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:42,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:42,834 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:25:42,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:42,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:42,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:42,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:42,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-22 02:25:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:42,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:42,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:42,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:42,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:25:42,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-22 02:25:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:42,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:42,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:42,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-22 02:25:42,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:42,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:42,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-22 02:25:42,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-02-22 02:25:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:42,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:42,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:42,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-02-22 02:25:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:42,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:42,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:42,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:43,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:43,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:43,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 02:25:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:43,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:43,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:43,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-22 02:25:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:43,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:43,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:43,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 02:25:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:43,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:43,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:43,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:25:43,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911391619] [2021-02-22 02:25:43,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:25:43,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 02:25:43,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666559427] [2021-02-22 02:25:43,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 02:25:43,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:25:43,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 02:25:43,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-02-22 02:25:43,065 INFO L87 Difference]: Start difference. First operand 2555 states and 3236 transitions. Second operand 9 states. [2021-02-22 02:25:43,373 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-22 02:25:46,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:25:46,950 INFO L93 Difference]: Finished difference Result 5653 states and 7647 transitions. [2021-02-22 02:25:46,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-22 02:25:46,952 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 141 [2021-02-22 02:25:46,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:25:46,988 INFO L225 Difference]: With dead ends: 5653 [2021-02-22 02:25:46,988 INFO L226 Difference]: Without dead ends: 3161 [2021-02-22 02:25:47,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2021-02-22 02:25:47,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2021-02-22 02:25:47,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 2213. [2021-02-22 02:25:47,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2213 states. [2021-02-22 02:25:47,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 2789 transitions. [2021-02-22 02:25:47,628 INFO L78 Accepts]: Start accepts. Automaton has 2213 states and 2789 transitions. Word has length 141 [2021-02-22 02:25:47,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:25:47,629 INFO L480 AbstractCegarLoop]: Abstraction has 2213 states and 2789 transitions. [2021-02-22 02:25:47,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 02:25:47,630 INFO L276 IsEmpty]: Start isEmpty. Operand 2213 states and 2789 transitions. [2021-02-22 02:25:47,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-02-22 02:25:47,632 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:25:47,632 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] [2021-02-22 02:25:47,633 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 02:25:47,633 INFO L428 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:25:47,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:25:47,634 INFO L82 PathProgramCache]: Analyzing trace with hash -619892627, now seen corresponding path program 1 times [2021-02-22 02:25:47,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:25:47,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269008955] [2021-02-22 02:25:47,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:25:47,640 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:25:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:47,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:47,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:47,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:47,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:47,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:47,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:47,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:47,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:47,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:47,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:47,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:47,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:47,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:47,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:47,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:47,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-22 02:25:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:47,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:47,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:47,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:47,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:47,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-22 02:25:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:47,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:47,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:47,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-22 02:25:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:47,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:47,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:47,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-02-22 02:25:47,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:47,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:47,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:47,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-02-22 02:25:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:47,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:47,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:47,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:47,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:47,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:47,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 02:25:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:48,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:48,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:48,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-22 02:25:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:48,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:48,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:48,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 02:25:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:48,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:48,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:48,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:25:48,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269008955] [2021-02-22 02:25:48,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:25:48,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 02:25:48,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569475982] [2021-02-22 02:25:48,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 02:25:48,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:25:48,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 02:25:48,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-22 02:25:48,055 INFO L87 Difference]: Start difference. First operand 2213 states and 2789 transitions. Second operand 8 states. [2021-02-22 02:25:48,339 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-22 02:25:53,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:25:53,242 INFO L93 Difference]: Finished difference Result 7536 states and 11029 transitions. [2021-02-22 02:25:53,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-22 02:25:53,244 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 144 [2021-02-22 02:25:53,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:25:53,304 INFO L225 Difference]: With dead ends: 7536 [2021-02-22 02:25:53,305 INFO L226 Difference]: Without dead ends: 5386 [2021-02-22 02:25:53,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2021-02-22 02:25:53,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5386 states. [2021-02-22 02:25:54,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5386 to 3992. [2021-02-22 02:25:54,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3992 states. [2021-02-22 02:25:54,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3992 states to 3992 states and 5139 transitions. [2021-02-22 02:25:54,348 INFO L78 Accepts]: Start accepts. Automaton has 3992 states and 5139 transitions. Word has length 144 [2021-02-22 02:25:54,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:25:54,351 INFO L480 AbstractCegarLoop]: Abstraction has 3992 states and 5139 transitions. [2021-02-22 02:25:54,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 02:25:54,351 INFO L276 IsEmpty]: Start isEmpty. Operand 3992 states and 5139 transitions. [2021-02-22 02:25:54,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-02-22 02:25:54,356 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:25:54,357 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:25:54,357 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 02:25:54,358 INFO L428 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:25:54,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:25:54,358 INFO L82 PathProgramCache]: Analyzing trace with hash -520132439, now seen corresponding path program 1 times [2021-02-22 02:25:54,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:25:54,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42180169] [2021-02-22 02:25:54,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:25:54,448 WARN L141 QuantifierPusher]: treesize reduction 70, result has 1.4 percent of original size [2021-02-22 02:25:54,449 WARN L147 QuantifierPusher]: treesize reduction 70, result has 1.4 percent of original size 1 [2021-02-22 02:25:54,471 WARN L141 QuantifierPusher]: treesize reduction 70, result has 1.4 percent of original size [2021-02-22 02:25:54,472 WARN L147 QuantifierPusher]: treesize reduction 70, result has 1.4 percent of original size 1 [2021-02-22 02:25:54,483 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:25:54,524 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:25:54,554 WARN L141 QuantifierPusher]: treesize reduction 12, result has 82.9 percent of original size [2021-02-22 02:25:54,566 WARN L147 QuantifierPusher]: treesize reduction 12, result has 82.9 percent of original size 58 [2021-02-22 02:25:54,579 WARN L141 QuantifierPusher]: treesize reduction 70, result has 1.4 percent of original size [2021-02-22 02:25:54,580 WARN L147 QuantifierPusher]: treesize reduction 70, result has 1.4 percent of original size 1 [2021-02-22 02:25:54,598 WARN L141 QuantifierPusher]: treesize reduction 70, result has 1.4 percent of original size [2021-02-22 02:25:54,599 WARN L147 QuantifierPusher]: treesize reduction 70, result has 1.4 percent of original size 1 [2021-02-22 02:25:54,604 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:25:54,606 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:25:54,612 WARN L141 QuantifierPusher]: treesize reduction 12, result has 82.9 percent of original size [2021-02-22 02:25:54,618 WARN L147 QuantifierPusher]: treesize reduction 12, result has 82.9 percent of original size 58 [2021-02-22 02:25:54,624 WARN L141 QuantifierPusher]: treesize reduction 11, result has 84.5 percent of original size [2021-02-22 02:25:54,634 WARN L147 QuantifierPusher]: treesize reduction 11, result has 84.5 percent of original size 60 [2021-02-22 02:25:54,643 WARN L141 QuantifierPusher]: treesize reduction 11, result has 84.5 percent of original size [2021-02-22 02:25:54,652 WARN L147 QuantifierPusher]: treesize reduction 11, result has 84.5 percent of original size 60 [2021-02-22 02:25:54,693 WARN L141 QuantifierPusher]: treesize reduction 21, result has 27.6 percent of original size [2021-02-22 02:25:54,696 WARN L147 QuantifierPusher]: treesize reduction 21, result has 27.6 percent of original size 8 [2021-02-22 02:25:54,703 WARN L141 QuantifierPusher]: treesize reduction 12, result has 82.9 percent of original size [2021-02-22 02:25:54,709 WARN L147 QuantifierPusher]: treesize reduction 12, result has 82.9 percent of original size 58 [2021-02-22 02:25:54,716 WARN L141 QuantifierPusher]: treesize reduction 11, result has 84.5 percent of original size [2021-02-22 02:25:54,725 WARN L147 QuantifierPusher]: treesize reduction 11, result has 84.5 percent of original size 60 [2021-02-22 02:25:54,732 WARN L141 QuantifierPusher]: treesize reduction 11, result has 84.5 percent of original size [2021-02-22 02:25:54,740 WARN L147 QuantifierPusher]: treesize reduction 11, result has 84.5 percent of original size 60 [2021-02-22 02:25:54,780 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size [2021-02-22 02:25:54,784 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size 27 [2021-02-22 02:25:54,792 WARN L141 QuantifierPusher]: treesize reduction 12, result has 87.5 percent of original size [2021-02-22 02:25:54,799 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:25:54,806 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:25:54,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:25:54,821 WARN L147 QuantifierPusher]: treesize reduction 12, result has 87.5 percent of original size 84 [2021-02-22 02:25:54,823 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:25:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:54,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:54,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:54,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:54,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:54,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:54,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:55,155 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:25:55,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:55,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:55,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:55,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:55,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-22 02:25:55,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:55,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:55,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-22 02:25:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:55,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:55,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-22 02:25:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:55,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:55,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-02-22 02:25:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:55,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:55,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-02-22 02:25:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:55,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:55,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:55,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:55,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 02:25:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:55,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:55,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-22 02:25:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:55,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,428 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:55,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-02-22 02:25:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:55,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:55,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:25:55,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:25:55,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:25:55,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:25:55,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:55,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:55,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:55,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:55,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:25:55,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 02:25:55,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 02:25:55,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 02:25:55,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 02:25:55,638 WARN L141 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-02-22 02:25:55,639 WARN L147 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size 10 [2021-02-22 02:25:55,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 02:25:55,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-22 02:25:55,707 WARN L141 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-02-22 02:25:55,716 WARN L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-02-22 02:25:55,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 02:25:55,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 02:25:55,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 02:25:55,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 02:25:55,846 WARN L141 QuantifierPusher]: treesize reduction 8, result has 61.9 percent of original size [2021-02-22 02:25:55,847 WARN L147 QuantifierPusher]: treesize reduction 8, result has 61.9 percent of original size 13 [2021-02-22 02:25:55,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 02:25:55,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-22 02:25:55,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:55,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-22 02:25:56,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:56,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:25:56,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:56,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:25:56,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:56,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:25:56,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:56,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:25:56,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:56,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 02:25:56,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-02-22 02:25:56,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:56,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:25:56,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:56,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:25:56,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:56,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:25:56,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:56,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:25:56,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:56,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:25:56,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:56,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:25:56,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:56,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:25:56,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:56,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:25:56,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:56,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:25:56,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:56,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 02:25:56,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:25:56,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:56,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:56,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42180169] [2021-02-22 02:25:56,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:25:56,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2021-02-22 02:25:56,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605309830] [2021-02-22 02:25:56,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-02-22 02:25:56,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:25:56,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-02-22 02:25:56,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=893, Unknown=0, NotChecked=0, Total=1056 [2021-02-22 02:25:56,775 INFO L87 Difference]: Start difference. First operand 3992 states and 5139 transitions. Second operand 32 states. [2021-02-22 02:25:57,195 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-22 02:25:58,390 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-22 02:25:58,547 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-22 02:25:58,749 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-22 02:25:58,911 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-22 02:25:59,058 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-22 02:25:59,235 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-02-22 02:25:59,397 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-22 02:25:59,569 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-02-22 02:25:59,748 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-22 02:25:59,989 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:26:00,114 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-22 02:26:00,317 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-22 02:26:00,528 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-22 02:26:00,729 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-22 02:26:00,937 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-22 02:26:01,291 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-22 02:26:01,549 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-02-22 02:26:02,249 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-22 02:26:02,577 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:26:02,784 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-02-22 02:26:05,056 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-22 02:26:05,255 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-22 02:26:05,431 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:26:05,613 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:26:05,766 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-22 02:26:06,239 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-02-22 02:26:06,555 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-22 02:26:08,775 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-22 02:26:09,015 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-22 02:26:09,324 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-02-22 02:26:10,406 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-22 02:26:10,784 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-22 02:26:11,127 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-22 02:26:11,429 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:26:12,045 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-22 02:26:12,225 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-22 02:26:12,467 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-22 02:26:12,707 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-22 02:26:13,090 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-22 02:26:16,001 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-02-22 02:26:16,406 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-22 02:26:16,548 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-22 02:26:17,426 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-02-22 02:26:18,093 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:26:18,555 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-22 02:26:18,813 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-22 02:26:19,015 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-22 02:26:23,064 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 110 [2021-02-22 02:26:23,401 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2021-02-22 02:26:23,694 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-02-22 02:26:23,890 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-22 02:26:27,836 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:26:27,993 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-22 02:26:28,150 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:26:28,325 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-22 02:26:28,501 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-02-22 02:26:28,763 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-22 02:26:28,935 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-22 02:26:29,116 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-22 02:26:29,317 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-02-22 02:26:29,522 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-22 02:26:29,718 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-02-22 02:26:29,924 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-22 02:26:30,801 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-22 02:26:30,974 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-22 02:26:31,140 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-22 02:26:31,326 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-02-22 02:26:31,520 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-02-22 02:26:31,704 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-02-22 02:26:31,891 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-22 02:26:32,096 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-22 02:26:32,323 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-22 02:26:32,557 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-02-22 02:26:32,785 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-22 02:26:33,105 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-02-22 02:26:35,488 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 108 [2021-02-22 02:26:35,871 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2021-02-22 02:26:36,208 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-22 02:26:36,445 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-02-22 02:26:36,596 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-02-22 02:26:37,884 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2021-02-22 02:26:38,346 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 109 [2021-02-22 02:26:38,756 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-02-22 02:26:39,063 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-02-22 02:26:42,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:26:42,535 INFO L93 Difference]: Finished difference Result 17079 states and 23945 transitions. [2021-02-22 02:26:42,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 318 states. [2021-02-22 02:26:42,536 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 176 [2021-02-22 02:26:42,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:26:42,666 INFO L225 Difference]: With dead ends: 17079 [2021-02-22 02:26:42,666 INFO L226 Difference]: Without dead ends: 13151 [2021-02-22 02:26:42,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 344 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52430 ImplicationChecksByTransitivity, 30.3s TimeCoverageRelationStatistics Valid=12705, Invalid=106665, Unknown=0, NotChecked=0, Total=119370 [2021-02-22 02:26:42,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13151 states. [2021-02-22 02:26:45,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13151 to 8026. [2021-02-22 02:26:45,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8026 states. [2021-02-22 02:26:45,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8026 states to 8026 states and 10241 transitions. [2021-02-22 02:26:45,911 INFO L78 Accepts]: Start accepts. Automaton has 8026 states and 10241 transitions. Word has length 176 [2021-02-22 02:26:45,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:26:45,911 INFO L480 AbstractCegarLoop]: Abstraction has 8026 states and 10241 transitions. [2021-02-22 02:26:45,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2021-02-22 02:26:45,912 INFO L276 IsEmpty]: Start isEmpty. Operand 8026 states and 10241 transitions. [2021-02-22 02:26:45,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-22 02:26:45,916 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:26:45,917 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:26:45,917 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 02:26:45,917 INFO L428 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:26:45,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:26:45,918 INFO L82 PathProgramCache]: Analyzing trace with hash 910518990, now seen corresponding path program 1 times [2021-02-22 02:26:45,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:26:45,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2062311313] [2021-02-22 02:26:45,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:26:45,961 WARN L141 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size [2021-02-22 02:26:45,962 WARN L147 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size 1 [2021-02-22 02:26:45,965 WARN L141 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size [2021-02-22 02:26:45,966 WARN L147 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size 1 [2021-02-22 02:26:45,969 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:26:45,972 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:26:45,975 WARN L141 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size [2021-02-22 02:26:45,980 WARN L147 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size 79 [2021-02-22 02:26:45,983 WARN L141 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size [2021-02-22 02:26:45,983 WARN L147 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size 1 [2021-02-22 02:26:45,986 WARN L141 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size [2021-02-22 02:26:45,987 WARN L147 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size 1 [2021-02-22 02:26:45,989 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:26:45,991 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:26:45,995 WARN L141 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size [2021-02-22 02:26:45,999 WARN L147 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size 79 [2021-02-22 02:26:46,002 WARN L141 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size [2021-02-22 02:26:46,011 WARN L147 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size 78 [2021-02-22 02:26:46,015 WARN L141 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size [2021-02-22 02:26:46,024 WARN L147 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size 78 [2021-02-22 02:26:46,063 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:26:46,066 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:26:46,071 WARN L141 QuantifierPusher]: treesize reduction 12, result has 90.7 percent of original size [2021-02-22 02:26:46,072 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:26:46,075 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:46,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:26:46,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:46,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:26:46,082 WARN L147 QuantifierPusher]: treesize reduction 12, result has 90.7 percent of original size 117 [2021-02-22 02:26:46,085 WARN L141 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size [2021-02-22 02:26:46,086 WARN L147 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size 1 [2021-02-22 02:26:46,089 WARN L141 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size [2021-02-22 02:26:46,090 WARN L147 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size 1 [2021-02-22 02:26:46,093 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:26:46,095 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:26:46,098 WARN L141 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size [2021-02-22 02:26:46,101 WARN L147 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size 79 [2021-02-22 02:26:46,104 WARN L141 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size [2021-02-22 02:26:46,104 WARN L147 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size 1 [2021-02-22 02:26:46,107 WARN L141 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size [2021-02-22 02:26:46,108 WARN L147 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size 1 [2021-02-22 02:26:46,111 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:26:46,113 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:26:46,116 WARN L141 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size [2021-02-22 02:26:46,120 WARN L147 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size 79 [2021-02-22 02:26:46,123 WARN L141 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size [2021-02-22 02:26:46,132 WARN L147 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size 78 [2021-02-22 02:26:46,135 WARN L141 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size [2021-02-22 02:26:46,144 WARN L147 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size 78 [2021-02-22 02:26:46,180 WARN L141 QuantifierPusher]: treesize reduction 27, result has 22.9 percent of original size [2021-02-22 02:26:46,182 WARN L147 QuantifierPusher]: treesize reduction 27, result has 22.9 percent of original size 8 [2021-02-22 02:26:46,185 WARN L141 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size [2021-02-22 02:26:46,189 WARN L147 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size 79 [2021-02-22 02:26:46,192 WARN L141 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size [2021-02-22 02:26:46,200 WARN L147 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size 78 [2021-02-22 02:26:46,203 WARN L141 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size [2021-02-22 02:26:46,211 WARN L147 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size 78 [2021-02-22 02:26:46,247 WARN L141 QuantifierPusher]: treesize reduction 27, result has 22.9 percent of original size [2021-02-22 02:26:46,249 WARN L147 QuantifierPusher]: treesize reduction 27, result has 22.9 percent of original size 8 [2021-02-22 02:26:46,253 WARN L141 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size [2021-02-22 02:26:46,257 WARN L147 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size 79 [2021-02-22 02:26:46,259 WARN L141 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size [2021-02-22 02:26:46,271 WARN L147 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size 78 [2021-02-22 02:26:46,274 WARN L141 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size [2021-02-22 02:26:46,282 WARN L147 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size 78 [2021-02-22 02:26:46,322 WARN L141 QuantifierPusher]: treesize reduction 27, result has 22.9 percent of original size [2021-02-22 02:26:46,323 WARN L147 QuantifierPusher]: treesize reduction 27, result has 22.9 percent of original size 8 [2021-02-22 02:26:46,327 WARN L141 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size [2021-02-22 02:26:46,331 WARN L147 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size 79 [2021-02-22 02:26:46,332 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:26:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 02:26:46,375 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 02:26:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 02:26:46,416 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 02:26:46,527 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 02:26:46,528 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 02:26:46,531 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-22 02:26:46,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 02:26:46 BoogieIcfgContainer [2021-02-22 02:26:46,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 02:26:46,598 INFO L168 Benchmark]: Toolchain (without parser) took 97068.99 ms. Allocated memory was 151.0 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 127.6 MB in the beginning and 993.0 MB in the end (delta: -865.4 MB). Peak memory consumption was 444.6 MB. Max. memory is 8.0 GB. [2021-02-22 02:26:46,599 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 125.0 MB in the end (delta: 81.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:26:46,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 548.52 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 113.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-22 02:26:46,599 INFO L168 Benchmark]: Boogie Preprocessor took 154.44 ms. Allocated memory is still 151.0 MB. Free memory was 113.1 MB in the beginning and 110.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 02:26:46,601 INFO L168 Benchmark]: RCFGBuilder took 1619.27 ms. Allocated memory is still 151.0 MB. Free memory was 110.9 MB in the beginning and 97.0 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-22 02:26:46,601 INFO L168 Benchmark]: TraceAbstraction took 94715.79 ms. Allocated memory was 151.0 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 96.5 MB in the beginning and 993.0 MB in the end (delta: -896.5 MB). Peak memory consumption was 413.2 MB. Max. memory is 8.0 GB. [2021-02-22 02:26:46,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 125.0 MB in the end (delta: 81.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 548.52 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 113.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 154.44 ms. Allocated memory is still 151.0 MB. Free memory was 113.1 MB in the beginning and 110.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1619.27 ms. Allocated memory is still 151.0 MB. Free memory was 110.9 MB in the beginning and 97.0 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 94715.79 ms. Allocated memory was 151.0 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 96.5 MB in the beginning and 993.0 MB in the end (delta: -896.5 MB). Peak memory consumption was 413.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] int fast_clk_edge ; [L17] int slow_clk_edge ; [L18] int q_buf_0 ; [L19] int q_free ; [L20] int q_read_ev ; [L21] int q_write_ev ; [L22] int q_req_up ; [L23] int q_ev ; [L44] int p_num_write ; [L45] int p_last_write ; [L46] int p_dw_st ; [L47] int p_dw_pc ; [L48] int p_dw_i ; [L49] int c_num_read ; [L50] int c_last_read ; [L51] int c_dr_st ; [L52] int c_dr_pc ; [L53] int c_dr_i ; [L186] static int a_t ; [L336] static int t = 0; [L547] int __retres1 ; [L551] CALL init_model() [L531] fast_clk_edge = 2 [L532] slow_clk_edge = 2 [L533] q_free = 1 [L534] q_write_ev = 2 [L535] q_read_ev = q_write_ev [L536] p_num_write = 0 [L537] p_dw_pc = 0 [L538] p_dw_i = 1 [L539] c_num_read = 0 [L540] c_dr_pc = 0 [L541] c_dr_i = 1 [L551] RET init_model() [L552] CALL start_simulation() [L469] int kernel_st ; [L470] int tmp ; [L471] int tmp___0 ; [L475] kernel_st = 0 [L476] CALL update_channels() [L250] COND FALSE !((int )q_req_up == 1) [L476] RET update_channels() [L477] CALL init_threads() [L265] COND TRUE (int )p_dw_i == 1 [L266] p_dw_st = 0 [L270] COND TRUE (int )c_dr_i == 1 [L271] c_dr_st = 0 [L477] RET init_threads() [L478] CALL fire_delta_events() [L303] COND FALSE !((int )q_read_ev == 0) [L308] COND FALSE !((int )q_write_ev == 0) [L478] RET fire_delta_events() [L479] CALL activate_threads() [L372] int tmp ; [L373] int tmp___0 ; [L377] CALL, EXPR is_do_write_p_triggered() [L55] int __retres1 ; [L58] COND FALSE !((int )p_dw_pc == 1) [L68] COND FALSE !((int )p_dw_pc == 2) [L78] __retres1 = 0 [L80] return (__retres1); [L377] RET, EXPR is_do_write_p_triggered() [L377] tmp = is_do_write_p_triggered() [L379] COND FALSE !(\read(tmp)) [L385] CALL, EXPR is_do_read_c_triggered() [L84] int __retres1 ; [L87] COND FALSE !((int )c_dr_pc == 1) [L97] COND FALSE !((int )c_dr_pc == 2) [L107] __retres1 = 0 [L109] return (__retres1); [L385] RET, EXPR is_do_read_c_triggered() [L385] tmp___0 = is_do_read_c_triggered() [L387] COND FALSE !(\read(tmp___0)) [L479] RET activate_threads() [L480] CALL reset_delta_events() [L321] COND FALSE !((int )q_read_ev == 1) [L326] COND FALSE !((int )q_write_ev == 1) [L480] RET reset_delta_events() [L483] COND TRUE 1 [L486] kernel_st = 1 [L487] CALL eval() [L397] int tmp ; [L398] int tmp___0 ; [L399] int tmp___1 ; [L402] COND TRUE 1 [L405] CALL, EXPR exists_runnable_thread() [L280] int __retres1 ; [L283] COND TRUE (int )p_dw_st == 0 [L284] __retres1 = 1 [L296] return (__retres1); [L405] RET, EXPR exists_runnable_thread() [L405] tmp___1 = exists_runnable_thread() [L407] COND TRUE \read(tmp___1) [L412] COND TRUE (int )p_dw_st == 0 [L414] tmp = __VERIFIER_nondet_int() [L416] COND TRUE \read(tmp) [L418] p_dw_st = 1 [L419] CALL do_write_p() [L141] COND TRUE (int )p_dw_pc == 0 [L156] COND TRUE 1 [L158] p_dw_st = 2 [L159] p_dw_pc = 1 [L419] RET do_write_p() [L427] COND TRUE (int )c_dr_st == 0 [L429] tmp___0 = __VERIFIER_nondet_int() [L431] COND TRUE \read(tmp___0) [L433] c_dr_st = 1 [L434] CALL do_read_c() [L188] int a ; [L191] COND TRUE (int )c_dr_pc == 0 [L202] COND TRUE 1 [L204] c_dr_st = 2 [L205] c_dr_pc = 1 [L206] a_t = a [L434] RET do_read_c() [L402] COND TRUE 1 [L405] CALL, EXPR exists_runnable_thread() [L280] int __retres1 ; [L283] COND FALSE !((int )p_dw_st == 0) [L287] COND TRUE (int )c_dr_st == 0 [L288] __retres1 = 1 [L296] return (__retres1); [L405] RET, EXPR exists_runnable_thread() [L405] tmp___1 = exists_runnable_thread() [L407] COND TRUE \read(tmp___1) [L412] COND FALSE !((int )p_dw_st == 0) [L427] COND TRUE (int )c_dr_st == 0 [L429] tmp___0 = __VERIFIER_nondet_int() [L431] COND TRUE \read(tmp___0) [L433] c_dr_st = 1 [L434] CALL do_read_c() [L188] int a ; [L191] COND FALSE !((int )c_dr_pc == 0) [L194] COND TRUE (int )c_dr_pc == 2 [L217] a = a_t [L221] a = q_buf_0 [L222] c_last_read = a [L223] c_num_read += 1 [L224] q_free = 1 [L225] q_req_up = 1 [L226] COND TRUE p_last_write == c_last_read [L227] COND FALSE !(p_num_write == c_num_read) [L231] CALL error() [L11] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 23 procedures, 279 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 94.5s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 81.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1738 SDtfs, 11251 SDslu, 1892 SDs, 0 SdLazy, 17442 SolverSat, 5458 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 30.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 682 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 508 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56396 ImplicationChecksByTransitivity, 38.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8026occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 9505 StatesRemovedByMinimization, 5 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...