/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-36cd7be [2021-02-24 04:50:42,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:50:42,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:50:42,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:50:42,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:50:42,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:50:42,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:50:42,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:50:42,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:50:42,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:50:42,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:50:42,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:50:42,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:50:42,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:50:42,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:50:42,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:50:42,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:50:42,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:50:42,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:50:42,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:50:42,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:50:42,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:50:42,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:50:42,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:50:42,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 04:50:42,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 04:50:42,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 04:50:42,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 04:50:42,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 04:50:42,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 04:50:42,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 04:50:42,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 04:50:42,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 04:50:42,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 04:50:42,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 04:50:42,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 04:50:42,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 04:50:42,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 04:50:42,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:50:42,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:50:42,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:50:42,979 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:50:42,994 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:50:42,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:50:42,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:50:42,997 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:50:42,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:50:42,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:50:42,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:50:42,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:50:42,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:50:42,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:50:42,999 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:50:42,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:50:42,999 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:50:43,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:50:43,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:50:43,000 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:50:43,001 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:50:43,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:50:43,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:50:43,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:50:43,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:50:43,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:50:43,002 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:50:43,003 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:50:43,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:50:43,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:50:43,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:50:43,560 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:50:43,561 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:50:43,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2021-02-24 04:50:43,664 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/039556274/8a742872048946f5a7930c773cdecf51/FLAGfe3e2eafe [2021-02-24 04:50:44,523 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:50:44,524 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2021-02-24 04:50:44,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/039556274/8a742872048946f5a7930c773cdecf51/FLAGfe3e2eafe [2021-02-24 04:50:44,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/039556274/8a742872048946f5a7930c773cdecf51 [2021-02-24 04:50:44,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:50:44,833 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:50:44,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:50:44,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:50:44,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:50:44,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:50:44" (1/1) ... [2021-02-24 04:50:44,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e81f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:50:44, skipping insertion in model container [2021-02-24 04:50:44,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:50:44" (1/1) ... [2021-02-24 04:50:44,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:50:44,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:50:45,179 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] [2021-02-24 04:50:45,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:50:45,318 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:50:45,333 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] [2021-02-24 04:50:45,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:50:45,394 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:50:45,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:50:45 WrapperNode [2021-02-24 04:50:45,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:50:45,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:50:45,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:50:45,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:50:45,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:50:45" (1/1) ... [2021-02-24 04:50:45,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:50:45" (1/1) ... [2021-02-24 04:50:45,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:50:45" (1/1) ... [2021-02-24 04:50:45,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:50:45" (1/1) ... [2021-02-24 04:50:45,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:50:45" (1/1) ... [2021-02-24 04:50:45,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:50:45" (1/1) ... [2021-02-24 04:50:45,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:50:45" (1/1) ... [2021-02-24 04:50:45,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:50:45,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:50:45,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:50:45,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:50:45,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:50:45" (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 [2021-02-24 04:50:45,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:50:45,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:50:45,593 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:50:45,593 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-02-24 04:50:45,593 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2021-02-24 04:50:45,593 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2021-02-24 04:50:45,594 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2021-02-24 04:50:45,594 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2021-02-24 04:50:45,594 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2021-02-24 04:50:45,594 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2021-02-24 04:50:45,594 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-02-24 04:50:45,594 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2021-02-24 04:50:45,595 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-02-24 04:50:45,595 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-02-24 04:50:45,595 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-02-24 04:50:45,595 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2021-02-24 04:50:45,595 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2021-02-24 04:50:45,595 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-02-24 04:50:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2021-02-24 04:50:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2021-02-24 04:50:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2021-02-24 04:50:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2021-02-24 04:50:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:50:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:50:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:50:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:50:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:50:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:50:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-02-24 04:50:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2021-02-24 04:50:45,598 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2021-02-24 04:50:45,598 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2021-02-24 04:50:45,598 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2021-02-24 04:50:45,598 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2021-02-24 04:50:45,598 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2021-02-24 04:50:45,598 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-02-24 04:50:45,599 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2021-02-24 04:50:45,599 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-02-24 04:50:45,599 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-02-24 04:50:45,599 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-02-24 04:50:45,599 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2021-02-24 04:50:45,599 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2021-02-24 04:50:45,600 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-02-24 04:50:45,600 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2021-02-24 04:50:45,600 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2021-02-24 04:50:45,600 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2021-02-24 04:50:45,600 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2021-02-24 04:50:45,600 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:50:45,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:50:45,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:50:45,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:50:45,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:50:45,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:50:45,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:50:46,201 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: ~a_t~0 := ~a~0; [2021-02-24 04:50:46,202 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L211: ~c_dr_st~0 := 2; [2021-02-24 04:50:46,202 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume 1 == ~q_free~0; [2021-02-24 04:50:46,202 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2021-02-24 04:50:46,203 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L212: ~c_dr_pc~0 := 2; [2021-02-24 04:50:46,233 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:50:46,234 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-02-24 04:50:46,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:50:46 BoogieIcfgContainer [2021-02-24 04:50:46,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:50:46,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:50:46,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:50:46,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:50:46,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:50:44" (1/3) ... [2021-02-24 04:50:46,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d7a659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:50:46, skipping insertion in model container [2021-02-24 04:50:46,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:50:45" (2/3) ... [2021-02-24 04:50:46,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d7a659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:50:46, skipping insertion in model container [2021-02-24 04:50:46,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:50:46" (3/3) ... [2021-02-24 04:50:46,248 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2021-02-24 04:50:46,256 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:50:46,263 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:50:46,286 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:50:46,313 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:50:46,314 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:50:46,314 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:50:46,314 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:50:46,314 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:50:46,314 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:50:46,315 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:50:46,315 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:50:46,341 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states. [2021-02-24 04:50:46,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-02-24 04:50:46,362 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:50:46,363 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] [2021-02-24 04:50:46,364 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:50:46,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:50:46,371 INFO L82 PathProgramCache]: Analyzing trace with hash -690017505, now seen corresponding path program 1 times [2021-02-24 04:50:46,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:50:46,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892082342] [2021-02-24 04:50:46,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:50:46,479 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:50:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:50:46,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:46,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:50:46,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:46,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:50:46,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:46,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:50:46,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:46,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:50:46,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:46,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:50:46,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:46,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:50:47,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:50:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:50:47,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:47,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:50:47,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:47,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:50:47,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 04:50:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:50:47,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:47,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:50:47,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:47,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:50:47,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-24 04:50:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:50:47,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:47,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:50:47,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 04:50:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:50:47,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:47,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:50:47,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-02-24 04:50:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:50:47,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:47,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:50:47,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-02-24 04:50:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:50:47,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:47,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:50:47,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:47,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:50:47,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 04:50:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:50:47,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:47,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:50:47,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:47,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:50:47,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:50:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:50:47,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:47,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:50:47,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 04:50:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:50:47,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:47,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:50:47,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 04:50:47,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:50:47,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:50:47,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:50:47,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:50:47,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892082342] [2021-02-24 04:50:47,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:50:47,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-24 04:50:47,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887096552] [2021-02-24 04:50:47,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-24 04:50:47,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:50:47,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-24 04:50:47,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-02-24 04:50:47,542 INFO L87 Difference]: Start difference. First operand 273 states. Second operand 13 states. [2021-02-24 04:50:48,165 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2021-02-24 04:50:49,905 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2021-02-24 04:50:50,921 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-24 04:50:51,680 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-24 04:50:51,966 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2021-02-24 04:50:55,582 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-24 04:50:56,642 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-24 04:51:04,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:51:04,216 INFO L93 Difference]: Finished difference Result 2150 states and 3109 transitions. [2021-02-24 04:51:04,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-02-24 04:51:04,219 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 140 [2021-02-24 04:51:04,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:51:04,267 INFO L225 Difference]: With dead ends: 2150 [2021-02-24 04:51:04,268 INFO L226 Difference]: Without dead ends: 1875 [2021-02-24 04:51:04,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3585 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1275, Invalid=8037, Unknown=0, NotChecked=0, Total=9312 [2021-02-24 04:51:04,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1875 states. [2021-02-24 04:51:04,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1875 to 1315. [2021-02-24 04:51:04,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1315 states. [2021-02-24 04:51:04,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1603 transitions. [2021-02-24 04:51:04,884 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1603 transitions. Word has length 140 [2021-02-24 04:51:04,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:51:04,885 INFO L480 AbstractCegarLoop]: Abstraction has 1315 states and 1603 transitions. [2021-02-24 04:51:04,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-24 04:51:04,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1603 transitions. [2021-02-24 04:51:04,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-02-24 04:51:04,891 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:51:04,891 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] [2021-02-24 04:51:04,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:51:04,892 INFO L428 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:51:04,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:51:04,893 INFO L82 PathProgramCache]: Analyzing trace with hash 965313352, now seen corresponding path program 1 times [2021-02-24 04:51:04,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:51:04,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [72076718] [2021-02-24 04:51:04,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:51:04,898 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:51:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:05,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:05,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:05,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:05,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:05,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:05,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:05,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:05,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:05,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:05,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:05,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:51:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:05,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:05,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:05,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 04:51:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:05,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:05,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:05,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-24 04:51:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:05,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:05,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:05,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 04:51:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:05,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:05,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:05,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:05,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:05,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-02-24 04:51:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:05,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:05,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:05,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-02-24 04:51:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:05,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:05,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:05,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 04:51:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:05,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:05,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:05,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:51:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:05,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:05,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:05,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 04:51:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:05,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:05,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:05,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 04:51:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:05,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:05,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:05,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:05,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:05,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:51:05,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [72076718] [2021-02-24 04:51:05,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:51:05,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 04:51:05,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012681332] [2021-02-24 04:51:05,482 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 04:51:05,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:51:05,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 04:51:05,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-02-24 04:51:05,483 INFO L87 Difference]: Start difference. First operand 1315 states and 1603 transitions. Second operand 9 states. [2021-02-24 04:51:05,749 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-24 04:51:11,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:51:11,965 INFO L93 Difference]: Finished difference Result 5283 states and 8021 transitions. [2021-02-24 04:51:11,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-24 04:51:11,966 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 140 [2021-02-24 04:51:11,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:51:12,020 INFO L225 Difference]: With dead ends: 5283 [2021-02-24 04:51:12,021 INFO L226 Difference]: Without dead ends: 4033 [2021-02-24 04:51:12,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=259, Invalid=611, Unknown=0, NotChecked=0, Total=870 [2021-02-24 04:51:12,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4033 states. [2021-02-24 04:51:12,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4033 to 2555. [2021-02-24 04:51:12,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2555 states. [2021-02-24 04:51:12,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 3236 transitions. [2021-02-24 04:51:12,932 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 3236 transitions. Word has length 140 [2021-02-24 04:51:12,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:51:12,936 INFO L480 AbstractCegarLoop]: Abstraction has 2555 states and 3236 transitions. [2021-02-24 04:51:12,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 04:51:12,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 3236 transitions. [2021-02-24 04:51:12,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-02-24 04:51:12,953 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:51:12,953 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] [2021-02-24 04:51:12,954 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:51:12,954 INFO L428 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:51:12,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:51:12,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1732617692, now seen corresponding path program 1 times [2021-02-24 04:51:12,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:51:12,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622772852] [2021-02-24 04:51:12,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:51:12,962 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:51:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:13,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:13,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:13,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:13,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:13,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:13,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:13,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:51:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:13,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:13,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:13,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 04:51:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:13,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:13,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:13,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:13,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:51:13,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-24 04:51:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:13,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:13,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:13,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 04:51:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:13,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:13,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 04:51:13,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-02-24 04:51:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:13,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:13,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:13,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-02-24 04:51:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:13,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:13,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:13,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 04:51:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:13,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:13,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:13,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:51:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:13,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:13,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:13,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 04:51:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:13,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:13,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:13,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 04:51:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:13,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:13,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:13,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:51:13,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622772852] [2021-02-24 04:51:13,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:51:13,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 04:51:13,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920481875] [2021-02-24 04:51:13,387 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 04:51:13,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:51:13,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 04:51:13,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-02-24 04:51:13,389 INFO L87 Difference]: Start difference. First operand 2555 states and 3236 transitions. Second operand 9 states. [2021-02-24 04:51:16,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:51:16,953 INFO L93 Difference]: Finished difference Result 5653 states and 7647 transitions. [2021-02-24 04:51:16,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-24 04:51:16,957 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 141 [2021-02-24 04:51:16,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:51:16,992 INFO L225 Difference]: With dead ends: 5653 [2021-02-24 04:51:16,992 INFO L226 Difference]: Without dead ends: 3161 [2021-02-24 04:51:17,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2021-02-24 04:51:17,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2021-02-24 04:51:17,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 2213. [2021-02-24 04:51:17,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2213 states. [2021-02-24 04:51:17,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 2789 transitions. [2021-02-24 04:51:17,593 INFO L78 Accepts]: Start accepts. Automaton has 2213 states and 2789 transitions. Word has length 141 [2021-02-24 04:51:17,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:51:17,594 INFO L480 AbstractCegarLoop]: Abstraction has 2213 states and 2789 transitions. [2021-02-24 04:51:17,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 04:51:17,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2213 states and 2789 transitions. [2021-02-24 04:51:17,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-02-24 04:51:17,596 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:51:17,597 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, 1, 1, 1] [2021-02-24 04:51:17,597 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 04:51:17,597 INFO L428 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:51:17,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:51:17,598 INFO L82 PathProgramCache]: Analyzing trace with hash -619892627, now seen corresponding path program 1 times [2021-02-24 04:51:17,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:51:17,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1910897986] [2021-02-24 04:51:17,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:51:17,601 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:51:17,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:17,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:17,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:17,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:17,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:17,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:17,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:17,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:17,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:17,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:17,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:17,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:17,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:17,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:51:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:17,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:17,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:17,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 04:51:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:17,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:17,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:17,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:17,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:17,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-24 04:51:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:17,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:17,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:17,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 04:51:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:17,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:17,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:17,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-02-24 04:51:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:17,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:17,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:17,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-02-24 04:51:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:17,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:17,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:17,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 04:51:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:17,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:17,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:17,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:51:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:17,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:17,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:17,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 04:51:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:17,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:17,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:17,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 04:51:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:17,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:17,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:17,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:51:17,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1910897986] [2021-02-24 04:51:17,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:51:17,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 04:51:17,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553464384] [2021-02-24 04:51:17,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 04:51:17,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:51:17,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 04:51:17,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-24 04:51:17,993 INFO L87 Difference]: Start difference. First operand 2213 states and 2789 transitions. Second operand 8 states. [2021-02-24 04:51:22,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:51:22,683 INFO L93 Difference]: Finished difference Result 7536 states and 11029 transitions. [2021-02-24 04:51:22,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-24 04:51:22,683 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 144 [2021-02-24 04:51:22,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:51:22,743 INFO L225 Difference]: With dead ends: 7536 [2021-02-24 04:51:22,744 INFO L226 Difference]: Without dead ends: 5386 [2021-02-24 04:51:22,771 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 [2021-02-24 04:51:22,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5386 states. [2021-02-24 04:51:23,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5386 to 3992. [2021-02-24 04:51:23,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3992 states. [2021-02-24 04:51:23,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3992 states to 3992 states and 5139 transitions. [2021-02-24 04:51:23,933 INFO L78 Accepts]: Start accepts. Automaton has 3992 states and 5139 transitions. Word has length 144 [2021-02-24 04:51:23,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:51:23,934 INFO L480 AbstractCegarLoop]: Abstraction has 3992 states and 5139 transitions. [2021-02-24 04:51:23,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 04:51:23,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3992 states and 5139 transitions. [2021-02-24 04:51:23,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-02-24 04:51:23,938 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:51:23,939 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] [2021-02-24 04:51:23,939 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 04:51:23,940 INFO L428 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:51:23,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:51:23,940 INFO L82 PathProgramCache]: Analyzing trace with hash -520132439, now seen corresponding path program 1 times [2021-02-24 04:51:23,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:51:23,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339582429] [2021-02-24 04:51:23,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:51:24,025 WARN L141 QuantifierPusher]: treesize reduction 70, result has 1.4 percent of original size [2021-02-24 04:51:24,027 WARN L147 QuantifierPusher]: treesize reduction 70, result has 1.4 percent of original size 1 [2021-02-24 04:51:24,044 WARN L141 QuantifierPusher]: treesize reduction 70, result has 1.4 percent of original size [2021-02-24 04:51:24,045 WARN L147 QuantifierPusher]: treesize reduction 70, result has 1.4 percent of original size 1 [2021-02-24 04:51:24,054 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-24 04:51:24,102 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-24 04:51:24,119 WARN L141 QuantifierPusher]: treesize reduction 12, result has 82.9 percent of original size [2021-02-24 04:51:24,130 WARN L147 QuantifierPusher]: treesize reduction 12, result has 82.9 percent of original size 58 [2021-02-24 04:51:24,140 WARN L141 QuantifierPusher]: treesize reduction 70, result has 1.4 percent of original size [2021-02-24 04:51:24,143 WARN L147 QuantifierPusher]: treesize reduction 70, result has 1.4 percent of original size 1 [2021-02-24 04:51:24,154 WARN L141 QuantifierPusher]: treesize reduction 70, result has 1.4 percent of original size [2021-02-24 04:51:24,157 WARN L147 QuantifierPusher]: treesize reduction 70, result has 1.4 percent of original size 1 [2021-02-24 04:51:24,163 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-24 04:51:24,166 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-24 04:51:24,171 WARN L141 QuantifierPusher]: treesize reduction 12, result has 82.9 percent of original size [2021-02-24 04:51:24,175 WARN L147 QuantifierPusher]: treesize reduction 12, result has 82.9 percent of original size 58 [2021-02-24 04:51:24,179 WARN L141 QuantifierPusher]: treesize reduction 11, result has 84.5 percent of original size [2021-02-24 04:51:24,188 WARN L147 QuantifierPusher]: treesize reduction 11, result has 84.5 percent of original size 60 [2021-02-24 04:51:24,193 WARN L141 QuantifierPusher]: treesize reduction 11, result has 84.5 percent of original size [2021-02-24 04:51:24,201 WARN L147 QuantifierPusher]: treesize reduction 11, result has 84.5 percent of original size 60 [2021-02-24 04:51:24,238 WARN L141 QuantifierPusher]: treesize reduction 21, result has 27.6 percent of original size [2021-02-24 04:51:24,244 WARN L147 QuantifierPusher]: treesize reduction 21, result has 27.6 percent of original size 8 [2021-02-24 04:51:24,255 WARN L141 QuantifierPusher]: treesize reduction 12, result has 82.9 percent of original size [2021-02-24 04:51:24,265 WARN L147 QuantifierPusher]: treesize reduction 12, result has 82.9 percent of original size 58 [2021-02-24 04:51:24,272 WARN L141 QuantifierPusher]: treesize reduction 11, result has 84.5 percent of original size [2021-02-24 04:51:24,281 WARN L147 QuantifierPusher]: treesize reduction 11, result has 84.5 percent of original size 60 [2021-02-24 04:51:24,291 WARN L141 QuantifierPusher]: treesize reduction 11, result has 84.5 percent of original size [2021-02-24 04:51:24,307 WARN L147 QuantifierPusher]: treesize reduction 11, result has 84.5 percent of original size 60 [2021-02-24 04:51:24,336 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size [2021-02-24 04:51:24,341 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size 27 [2021-02-24 04:51:24,355 WARN L141 QuantifierPusher]: treesize reduction 12, result has 87.5 percent of original size [2021-02-24 04:51:24,365 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:51:24,372 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:51:24,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:51:24,384 WARN L147 QuantifierPusher]: treesize reduction 12, result has 87.5 percent of original size 84 [2021-02-24 04:51:24,387 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:51:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:24,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:24,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:24,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:24,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:24,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:24,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:24,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:24,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:51:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:24,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:24,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:24,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:24,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 04:51:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:24,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:24,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-24 04:51:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:24,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:24,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 04:51:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:24,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:24,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-02-24 04:51:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:24,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:24,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-02-24 04:51:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:24,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:24,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 04:51:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:24,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:24,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:51:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:24,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:24,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 04:51:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:24,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:24,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-02-24 04:51:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:51:24,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:24,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:51:24,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:51:24,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:51:24,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:51:24,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:24,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:24,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:24,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:51:24,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:51:24,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 04:51:24,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:51:24,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:51:24,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 04:51:24,948 WARN L141 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-02-24 04:51:24,949 WARN L147 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size 10 [2021-02-24 04:51:24,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:51:24,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-24 04:51:24,996 WARN L141 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-02-24 04:51:24,997 WARN L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-02-24 04:51:24,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:24,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 04:51:24,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:51:25,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:51:25,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 04:51:25,099 WARN L141 QuantifierPusher]: treesize reduction 8, result has 61.9 percent of original size [2021-02-24 04:51:25,101 WARN L147 QuantifierPusher]: treesize reduction 8, result has 61.9 percent of original size 13 [2021-02-24 04:51:25,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 04:51:25,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-24 04:51:25,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-24 04:51:25,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:51:25,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:51:25,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:51:25,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:51:25,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:51:25,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-02-24 04:51:25,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:51:25,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:51:25,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:51:25,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:51:25,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:51:25,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:51:25,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:51:25,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:51:25,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:51:25,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:51:25,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:51:25,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:51:25,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:51:25,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339582429] [2021-02-24 04:51:25,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:51:25,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2021-02-24 04:51:25,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051636968] [2021-02-24 04:51:25,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-02-24 04:51:25,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:51:25,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-02-24 04:51:25,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=893, Unknown=0, NotChecked=0, Total=1056 [2021-02-24 04:51:25,910 INFO L87 Difference]: Start difference. First operand 3992 states and 5139 transitions. Second operand 32 states. [2021-02-24 04:51:26,309 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-24 04:51:27,413 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-24 04:51:27,550 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-24 04:51:27,715 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-24 04:51:27,867 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-24 04:51:28,000 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-24 04:51:28,186 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-02-24 04:51:28,351 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-24 04:51:28,527 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-02-24 04:51:28,688 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-24 04:51:28,961 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-24 04:51:29,096 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-24 04:51:29,300 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-24 04:51:29,514 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-24 04:51:29,728 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-24 04:51:29,935 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-24 04:51:30,301 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-24 04:51:30,550 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-02-24 04:51:31,134 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-24 04:51:31,412 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-24 04:51:31,586 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-02-24 04:51:33,740 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-24 04:51:33,932 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-24 04:51:34,090 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-24 04:51:34,245 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-24 04:51:34,386 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-24 04:51:34,779 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-02-24 04:51:35,096 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-24 04:51:37,323 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-24 04:51:37,868 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-02-24 04:51:38,908 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-24 04:51:39,274 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-24 04:51:39,613 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-24 04:51:39,907 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-24 04:51:40,580 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-24 04:51:40,766 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-24 04:51:41,003 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-24 04:51:41,240 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-24 04:51:41,609 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-24 04:51:44,340 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-02-24 04:51:44,784 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-24 04:51:44,924 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-24 04:51:45,708 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-02-24 04:51:46,344 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-24 04:51:46,827 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-24 04:51:47,083 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-24 04:51:47,285 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-24 04:51:50,884 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 110 [2021-02-24 04:51:51,216 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2021-02-24 04:51:51,513 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-02-24 04:51:51,767 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-24 04:51:55,609 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-24 04:51:55,766 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-24 04:51:55,913 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-24 04:51:56,086 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-24 04:51:56,256 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-02-24 04:51:56,426 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-24 04:51:56,594 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-24 04:51:56,773 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-24 04:51:56,970 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-02-24 04:51:57,174 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-24 04:51:57,369 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-02-24 04:51:57,574 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-24 04:51:58,422 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-24 04:51:58,590 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-24 04:51:58,750 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-24 04:51:58,937 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-02-24 04:51:59,196 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-02-24 04:51:59,380 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-02-24 04:51:59,562 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-24 04:51:59,771 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-24 04:51:59,989 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-24 04:52:00,219 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-02-24 04:52:00,441 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-24 04:52:00,669 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-02-24 04:52:03,071 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 108 [2021-02-24 04:52:03,445 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2021-02-24 04:52:03,775 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-24 04:52:04,006 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-02-24 04:52:05,332 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2021-02-24 04:52:05,808 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 109 [2021-02-24 04:52:06,296 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-02-24 04:52:06,605 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-02-24 04:52:09,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:52:09,914 INFO L93 Difference]: Finished difference Result 17079 states and 23945 transitions. [2021-02-24 04:52:09,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 318 states. [2021-02-24 04:52:09,915 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 176 [2021-02-24 04:52:09,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:52:10,040 INFO L225 Difference]: With dead ends: 17079 [2021-02-24 04:52:10,041 INFO L226 Difference]: Without dead ends: 13151 [2021-02-24 04:52:10,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 344 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52430 ImplicationChecksByTransitivity, 29.3s TimeCoverageRelationStatistics Valid=12705, Invalid=106665, Unknown=0, NotChecked=0, Total=119370 [2021-02-24 04:52:10,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13151 states. [2021-02-24 04:52:12,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13151 to 8026. [2021-02-24 04:52:12,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8026 states. [2021-02-24 04:52:12,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8026 states to 8026 states and 10241 transitions. [2021-02-24 04:52:12,851 INFO L78 Accepts]: Start accepts. Automaton has 8026 states and 10241 transitions. Word has length 176 [2021-02-24 04:52:12,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:52:12,852 INFO L480 AbstractCegarLoop]: Abstraction has 8026 states and 10241 transitions. [2021-02-24 04:52:12,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2021-02-24 04:52:12,852 INFO L276 IsEmpty]: Start isEmpty. Operand 8026 states and 10241 transitions. [2021-02-24 04:52:12,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-24 04:52:12,856 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:52:12,857 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] [2021-02-24 04:52:12,857 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 04:52:12,857 INFO L428 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:52:12,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:52:12,858 INFO L82 PathProgramCache]: Analyzing trace with hash 910518990, now seen corresponding path program 1 times [2021-02-24 04:52:12,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:52:12,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1695475783] [2021-02-24 04:52:12,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:52:12,911 WARN L141 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size [2021-02-24 04:52:12,911 WARN L147 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size 1 [2021-02-24 04:52:12,914 WARN L141 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size [2021-02-24 04:52:12,924 WARN L147 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size 1 [2021-02-24 04:52:12,930 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-24 04:52:12,937 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-24 04:52:12,941 WARN L141 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size [2021-02-24 04:52:12,954 WARN L147 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size 79 [2021-02-24 04:52:12,958 WARN L141 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size [2021-02-24 04:52:12,958 WARN L147 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size 1 [2021-02-24 04:52:12,961 WARN L141 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size [2021-02-24 04:52:12,961 WARN L147 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size 1 [2021-02-24 04:52:12,964 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-24 04:52:12,969 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-24 04:52:12,971 WARN L141 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size [2021-02-24 04:52:12,977 WARN L147 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size 79 [2021-02-24 04:52:12,980 WARN L141 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size [2021-02-24 04:52:12,983 WARN L147 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size 1 [2021-02-24 04:52:12,986 WARN L141 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size [2021-02-24 04:52:12,987 WARN L147 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size 1 [2021-02-24 04:52:12,990 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-24 04:52:12,992 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-24 04:52:12,997 WARN L141 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size [2021-02-24 04:52:13,003 WARN L147 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size 79 [2021-02-24 04:52:13,005 WARN L141 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size [2021-02-24 04:52:13,007 WARN L147 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size 1 [2021-02-24 04:52:13,012 WARN L141 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size [2021-02-24 04:52:13,013 WARN L147 QuantifierPusher]: treesize reduction 88, result has 1.1 percent of original size 1 [2021-02-24 04:52:13,016 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-24 04:52:13,020 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-24 04:52:13,023 WARN L141 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size [2021-02-24 04:52:13,028 WARN L147 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size 79 [2021-02-24 04:52:13,035 WARN L141 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size [2021-02-24 04:52:13,050 WARN L147 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size 78 [2021-02-24 04:52:13,053 WARN L141 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size [2021-02-24 04:52:13,062 WARN L147 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size 78 [2021-02-24 04:52:13,100 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:52:13,102 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:52:13,110 WARN L141 QuantifierPusher]: treesize reduction 12, result has 90.7 percent of original size [2021-02-24 04:52:13,112 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:52:13,114 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:52:13,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:52:13,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:52:13,121 WARN L147 QuantifierPusher]: treesize reduction 12, result has 90.7 percent of original size 117 [2021-02-24 04:52:13,124 WARN L141 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size [2021-02-24 04:52:13,132 WARN L147 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size 78 [2021-02-24 04:52:13,136 WARN L141 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size [2021-02-24 04:52:13,143 WARN L147 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size 78 [2021-02-24 04:52:13,181 WARN L141 QuantifierPusher]: treesize reduction 27, result has 22.9 percent of original size [2021-02-24 04:52:13,183 WARN L147 QuantifierPusher]: treesize reduction 27, result has 22.9 percent of original size 8 [2021-02-24 04:52:13,187 WARN L141 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size [2021-02-24 04:52:13,190 WARN L147 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size 79 [2021-02-24 04:52:13,194 WARN L141 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size [2021-02-24 04:52:13,203 WARN L147 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size 78 [2021-02-24 04:52:13,206 WARN L141 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size [2021-02-24 04:52:13,215 WARN L147 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size 78 [2021-02-24 04:52:13,251 WARN L141 QuantifierPusher]: treesize reduction 27, result has 22.9 percent of original size [2021-02-24 04:52:13,253 WARN L147 QuantifierPusher]: treesize reduction 27, result has 22.9 percent of original size 8 [2021-02-24 04:52:13,258 WARN L141 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size [2021-02-24 04:52:13,261 WARN L147 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size 79 [2021-02-24 04:52:13,265 WARN L141 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size [2021-02-24 04:52:13,272 WARN L147 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size 78 [2021-02-24 04:52:13,276 WARN L141 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size [2021-02-24 04:52:13,284 WARN L147 QuantifierPusher]: treesize reduction 11, result has 87.6 percent of original size 78 [2021-02-24 04:52:13,327 WARN L141 QuantifierPusher]: treesize reduction 27, result has 22.9 percent of original size [2021-02-24 04:52:13,328 WARN L147 QuantifierPusher]: treesize reduction 27, result has 22.9 percent of original size 8 [2021-02-24 04:52:13,330 WARN L141 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size [2021-02-24 04:52:13,333 WARN L147 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size 79 [2021-02-24 04:52:13,334 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:52:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:52:13,408 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:52:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:52:13,471 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:52:13,636 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 04:52:13,636 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 04:52:13,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-24 04:52:13,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:52:13 BoogieIcfgContainer [2021-02-24 04:52:13,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:52:13,697 INFO L168 Benchmark]: Toolchain (without parser) took 88879.49 ms. Allocated memory was 157.3 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 133.5 MB in the beginning and 810.5 MB in the end (delta: -677.0 MB). Peak memory consumption was 497.3 MB. Max. memory is 8.0 GB. [2021-02-24 04:52:13,697 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 157.3 MB. Free memory was 131.1 MB in the beginning and 130.8 MB in the end (delta: 215.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:52:13,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.06 ms. Allocated memory is still 157.3 MB. Free memory was 132.5 MB in the beginning and 119.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-24 04:52:13,698 INFO L168 Benchmark]: Boogie Preprocessor took 63.11 ms. Allocated memory is still 157.3 MB. Free memory was 119.1 MB in the beginning and 116.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:52:13,698 INFO L168 Benchmark]: RCFGBuilder took 776.08 ms. Allocated memory is still 157.3 MB. Free memory was 116.8 MB in the beginning and 107.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 15.9 MB. Max. memory is 8.0 GB. [2021-02-24 04:52:13,703 INFO L168 Benchmark]: TraceAbstraction took 87457.15 ms. Allocated memory was 157.3 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 106.6 MB in the beginning and 810.5 MB in the end (delta: -704.0 MB). Peak memory consumption was 469.9 MB. Max. memory is 8.0 GB. [2021-02-24 04:52:13,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 157.3 MB. Free memory was 131.1 MB in the beginning and 130.8 MB in the end (delta: 215.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 557.06 ms. Allocated memory is still 157.3 MB. Free memory was 132.5 MB in the beginning and 119.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 63.11 ms. Allocated memory is still 157.3 MB. Free memory was 119.1 MB in the beginning and 116.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 776.08 ms. Allocated memory is still 157.3 MB. Free memory was 116.8 MB in the beginning and 107.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 15.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 87457.15 ms. Allocated memory was 157.3 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 106.6 MB in the beginning and 810.5 MB in the end (delta: -704.0 MB). Peak memory consumption was 469.9 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: 87.3s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 75.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1738 SDtfs, 11251 SDslu, 1892 SDs, 0 SdLazy, 17458 SolverSat, 5454 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 682 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 508 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56396 ImplicationChecksByTransitivity, 35.8s 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: 5.8s 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...