/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 19:11:28,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 19:11:28,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 19:11:28,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 19:11:28,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 19:11:28,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 19:11:28,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 19:11:28,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 19:11:28,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 19:11:28,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 19:11:28,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 19:11:28,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 19:11:28,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 19:11:28,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 19:11:28,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 19:11:28,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 19:11:28,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 19:11:28,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 19:11:28,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 19:11:28,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 19:11:28,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 19:11:28,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 19:11:28,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 19:11:28,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 19:11:28,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 19:11:28,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 19:11:28,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 19:11:28,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 19:11:28,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 19:11:28,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 19:11:28,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 19:11:28,858 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 19:11:28,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 19:11:28,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 19:11:28,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 19:11:28,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 19:11:28,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 19:11:28,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 19:11:28,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 19:11:28,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 19:11:28,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 19:11:28,871 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 19:11:28,905 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 19:11:28,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 19:11:28,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 19:11:28,912 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 19:11:28,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 19:11:28,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 19:11:28,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 19:11:28,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 19:11:28,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 19:11:28,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 19:11:28,915 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 19:11:28,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 19:11:28,916 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 19:11:28,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 19:11:28,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 19:11:28,916 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 19:11:28,917 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 19:11:28,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 19:11:28,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 19:11:28,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 19:11:28,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 19:11:28,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 19:11:28,918 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 19:11:29,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 19:11:29,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 19:11:29,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 19:11:29,396 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 19:11:29,397 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 19:11:29,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c [2021-02-23 19:11:29,505 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f57de158/079575fed9774bf4b790ca8023d5844c/FLAG94ce06593 [2021-02-23 19:11:30,363 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 19:11:30,364 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.01.cil.c [2021-02-23 19:11:30,376 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f57de158/079575fed9774bf4b790ca8023d5844c/FLAG94ce06593 [2021-02-23 19:11:30,726 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f57de158/079575fed9774bf4b790ca8023d5844c [2021-02-23 19:11:30,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 19:11:30,746 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 19:11:30,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 19:11:30,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 19:11:30,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 19:11:30,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:11:30" (1/1) ... [2021-02-23 19:11:30,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b96f890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:11:30, skipping insertion in model container [2021-02-23 19:11:30,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:11:30" (1/1) ... [2021-02-23 19:11:30,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 19:11:30,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 19:11:31,096 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.01.cil.c[401,414] [2021-02-23 19:11:31,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 19:11:31,224 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 19:11:31,238 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.01.cil.c[401,414] [2021-02-23 19:11:31,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 19:11:31,285 INFO L208 MainTranslator]: Completed translation [2021-02-23 19:11:31,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:11:31 WrapperNode [2021-02-23 19:11:31,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 19:11:31,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 19:11:31,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 19:11:31,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 19:11:31,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:11:31" (1/1) ... [2021-02-23 19:11:31,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:11:31" (1/1) ... [2021-02-23 19:11:31,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:11:31" (1/1) ... [2021-02-23 19:11:31,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:11:31" (1/1) ... [2021-02-23 19:11:31,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:11:31" (1/1) ... [2021-02-23 19:11:31,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:11:31" (1/1) ... [2021-02-23 19:11:31,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:11:31" (1/1) ... [2021-02-23 19:11:31,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 19:11:31,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 19:11:31,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 19:11:31,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 19:11:31,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:11:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 19:11:31,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 19:11:31,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 19:11:31,458 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 19:11:31,458 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-02-23 19:11:31,459 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2021-02-23 19:11:31,459 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2021-02-23 19:11:31,459 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2021-02-23 19:11:31,459 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2021-02-23 19:11:31,459 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-02-23 19:11:31,459 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2021-02-23 19:11:31,460 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-02-23 19:11:31,460 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2021-02-23 19:11:31,460 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-02-23 19:11:31,460 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-02-23 19:11:31,460 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-02-23 19:11:31,461 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-02-23 19:11:31,461 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2021-02-23 19:11:31,461 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2021-02-23 19:11:31,461 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2021-02-23 19:11:31,461 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2021-02-23 19:11:31,462 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2021-02-23 19:11:31,462 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 19:11:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 19:11:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 19:11:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 19:11:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 19:11:31,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 19:11:31,463 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-02-23 19:11:31,463 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2021-02-23 19:11:31,463 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2021-02-23 19:11:31,463 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-02-23 19:11:31,463 INFO L130 BoogieDeclarations]: Found specification of procedure master [2021-02-23 19:11:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2021-02-23 19:11:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-02-23 19:11:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2021-02-23 19:11:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-02-23 19:11:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2021-02-23 19:11:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-02-23 19:11:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-02-23 19:11:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-02-23 19:11:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2021-02-23 19:11:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2021-02-23 19:11:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2021-02-23 19:11:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2021-02-23 19:11:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2021-02-23 19:11:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 19:11:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 19:11:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 19:11:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 19:11:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 19:11:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 19:11:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 19:11:32,051 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 19:11:32,052 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 19:11:32,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:11:32 BoogieIcfgContainer [2021-02-23 19:11:32,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 19:11:32,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 19:11:32,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 19:11:32,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 19:11:32,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 07:11:30" (1/3) ... [2021-02-23 19:11:32,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603f6406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:11:32, skipping insertion in model container [2021-02-23 19:11:32,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:11:31" (2/3) ... [2021-02-23 19:11:32,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603f6406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:11:32, skipping insertion in model container [2021-02-23 19:11:32,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:11:32" (3/3) ... [2021-02-23 19:11:32,068 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2021-02-23 19:11:32,076 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 19:11:32,082 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 19:11:32,104 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 19:11:32,134 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 19:11:32,134 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 19:11:32,135 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 19:11:32,135 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 19:11:32,135 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 19:11:32,135 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 19:11:32,136 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 19:11:32,136 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 19:11:32,162 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states. [2021-02-23 19:11:32,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-02-23 19:11:32,181 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:11:32,183 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] [2021-02-23 19:11:32,183 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:11:32,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:11:32,192 INFO L82 PathProgramCache]: Analyzing trace with hash 2035889959, now seen corresponding path program 1 times [2021-02-23 19:11:32,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:11:32,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072238748] [2021-02-23 19:11:32,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:11:32,305 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:11:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:32,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:32,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:32,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:32,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:32,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:32,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:32,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:32,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:32,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:32,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:32,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:11:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:32,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:32,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:32,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 19:11:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:33,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:33,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:33,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-23 19:11:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:33,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:33,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:33,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 19:11:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:33,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:33,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:33,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:33,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:33,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-02-23 19:11:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:33,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:33,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:33,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-02-23 19:11:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:33,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:33,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:33,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:11:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:33,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:33,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:33,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:11:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:33,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:33,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:33,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-02-23 19:11:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:33,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:33,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:33,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-02-23 19:11:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:33,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:33,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:33,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:33,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:33,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:11:33,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072238748] [2021-02-23 19:11:33,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:11:33,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 19:11:33,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384359769] [2021-02-23 19:11:33,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 19:11:33,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:11:33,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 19:11:33,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-02-23 19:11:33,246 INFO L87 Difference]: Start difference. First operand 210 states. Second operand 8 states. [2021-02-23 19:11:36,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:11:36,067 INFO L93 Difference]: Finished difference Result 809 states and 1163 transitions. [2021-02-23 19:11:36,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-23 19:11:36,069 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 110 [2021-02-23 19:11:36,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:11:36,094 INFO L225 Difference]: With dead ends: 809 [2021-02-23 19:11:36,094 INFO L226 Difference]: Without dead ends: 612 [2021-02-23 19:11:36,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2021-02-23 19:11:36,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2021-02-23 19:11:36,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 358. [2021-02-23 19:11:36,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2021-02-23 19:11:36,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 442 transitions. [2021-02-23 19:11:36,351 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 442 transitions. Word has length 110 [2021-02-23 19:11:36,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:11:36,354 INFO L480 AbstractCegarLoop]: Abstraction has 358 states and 442 transitions. [2021-02-23 19:11:36,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 19:11:36,354 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 442 transitions. [2021-02-23 19:11:36,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-02-23 19:11:36,370 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:11:36,371 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] [2021-02-23 19:11:36,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 19:11:36,371 INFO L428 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:11:36,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:11:36,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1391662035, now seen corresponding path program 1 times [2021-02-23 19:11:36,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:11:36,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1289075829] [2021-02-23 19:11:36,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:11:36,377 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:11:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:36,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:36,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:36,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:36,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:36,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:36,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:36,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:11:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:36,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:36,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:36,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 19:11:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:36,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:36,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:11:36,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-23 19:11:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:36,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:36,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:36,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 19:11:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:36,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:36,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:11:36,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-02-23 19:11:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:36,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:36,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:36,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-02-23 19:11:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:36,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:36,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:36,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:11:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:36,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:36,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:36,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:11:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:36,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:36,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:36,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-02-23 19:11:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:36,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:36,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:36,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-02-23 19:11:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:36,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:36,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:36,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:11:36,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1289075829] [2021-02-23 19:11:36,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:11:36,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 19:11:36,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287358567] [2021-02-23 19:11:36,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 19:11:36,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:11:36,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 19:11:36,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-23 19:11:36,640 INFO L87 Difference]: Start difference. First operand 358 states and 442 transitions. Second operand 8 states. [2021-02-23 19:11:38,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:11:38,022 INFO L93 Difference]: Finished difference Result 844 states and 1092 transitions. [2021-02-23 19:11:38,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 19:11:38,022 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 111 [2021-02-23 19:11:38,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:11:38,029 INFO L225 Difference]: With dead ends: 844 [2021-02-23 19:11:38,029 INFO L226 Difference]: Without dead ends: 529 [2021-02-23 19:11:38,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-02-23 19:11:38,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2021-02-23 19:11:38,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 349. [2021-02-23 19:11:38,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2021-02-23 19:11:38,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 427 transitions. [2021-02-23 19:11:38,126 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 427 transitions. Word has length 111 [2021-02-23 19:11:38,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:11:38,126 INFO L480 AbstractCegarLoop]: Abstraction has 349 states and 427 transitions. [2021-02-23 19:11:38,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 19:11:38,127 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 427 transitions. [2021-02-23 19:11:38,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-02-23 19:11:38,129 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:11:38,129 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] [2021-02-23 19:11:38,129 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 19:11:38,129 INFO L428 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:11:38,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:11:38,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1382199411, now seen corresponding path program 1 times [2021-02-23 19:11:38,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:11:38,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486168142] [2021-02-23 19:11:38,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:11:38,133 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:11:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:38,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:38,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:38,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:38,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:38,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:38,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:11:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:38,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:38,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 19:11:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:38,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-23 19:11:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:38,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 19:11:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:38,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-02-23 19:11:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:38,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-02-23 19:11:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:38,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:11:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:38,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:11:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:38,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-02-23 19:11:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:38,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-02-23 19:11:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:38,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:11:38,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486168142] [2021-02-23 19:11:38,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:11:38,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 19:11:38,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953440496] [2021-02-23 19:11:38,351 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 19:11:38,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:11:38,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 19:11:38,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 19:11:38,353 INFO L87 Difference]: Start difference. First operand 349 states and 427 transitions. Second operand 7 states. [2021-02-23 19:11:40,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:11:40,181 INFO L93 Difference]: Finished difference Result 1287 states and 1730 transitions. [2021-02-23 19:11:40,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 19:11:40,181 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 115 [2021-02-23 19:11:40,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:11:40,196 INFO L225 Difference]: With dead ends: 1287 [2021-02-23 19:11:40,196 INFO L226 Difference]: Without dead ends: 981 [2021-02-23 19:11:40,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2021-02-23 19:11:40,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2021-02-23 19:11:40,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 670. [2021-02-23 19:11:40,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2021-02-23 19:11:40,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 833 transitions. [2021-02-23 19:11:40,369 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 833 transitions. Word has length 115 [2021-02-23 19:11:40,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:11:40,370 INFO L480 AbstractCegarLoop]: Abstraction has 670 states and 833 transitions. [2021-02-23 19:11:40,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 19:11:40,370 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 833 transitions. [2021-02-23 19:11:40,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-23 19:11:40,373 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:11:40,374 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, 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] [2021-02-23 19:11:40,374 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 19:11:40,374 INFO L428 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:11:40,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:11:40,375 INFO L82 PathProgramCache]: Analyzing trace with hash 654511625, now seen corresponding path program 1 times [2021-02-23 19:11:40,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:11:40,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855450709] [2021-02-23 19:11:40,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:11:40,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:40,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-02-23 19:11:40,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:40,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:40,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:40,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-02-23 19:11:40,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:40,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:40,837 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 19:11:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 19:11:40,915 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 19:11:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 19:11:40,965 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 19:11:41,050 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 19:11:41,051 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 19:11:41,054 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 19:11:41,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 07:11:41 BoogieIcfgContainer [2021-02-23 19:11:41,105 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 19:11:41,110 INFO L168 Benchmark]: Toolchain (without parser) took 10373.07 ms. Allocated memory was 155.2 MB in the beginning and 274.7 MB in the end (delta: 119.5 MB). Free memory was 131.6 MB in the beginning and 217.9 MB in the end (delta: -86.3 MB). Peak memory consumption was 34.4 MB. Max. memory is 8.0 GB. [2021-02-23 19:11:41,111 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 155.2 MB. Free memory is still 129.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 19:11:41,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 532.99 ms. Allocated memory is still 155.2 MB. Free memory was 130.5 MB in the beginning and 118.1 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-23 19:11:41,120 INFO L168 Benchmark]: Boogie Preprocessor took 57.50 ms. Allocated memory is still 155.2 MB. Free memory was 118.1 MB in the beginning and 116.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 19:11:41,121 INFO L168 Benchmark]: RCFGBuilder took 709.14 ms. Allocated memory is still 155.2 MB. Free memory was 116.1 MB in the beginning and 111.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-23 19:11:41,121 INFO L168 Benchmark]: TraceAbstraction took 9048.64 ms. Allocated memory was 155.2 MB in the beginning and 274.7 MB in the end (delta: 119.5 MB). Free memory was 111.7 MB in the beginning and 217.9 MB in the end (delta: -106.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 8.0 GB. [2021-02-23 19:11:41,134 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 155.2 MB. Free memory is still 129.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 532.99 ms. Allocated memory is still 155.2 MB. Free memory was 130.5 MB in the beginning and 118.1 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 57.50 ms. Allocated memory is still 155.2 MB. Free memory was 118.1 MB in the beginning and 116.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 709.14 ms. Allocated memory is still 155.2 MB. Free memory was 116.1 MB in the beginning and 111.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9048.64 ms. Allocated memory was 155.2 MB in the beginning and 274.7 MB in the end (delta: 119.5 MB). Free memory was 111.7 MB in the beginning and 217.9 MB in the end (delta: -106.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int m_pc = 0; [L18] int t1_pc = 0; [L19] int m_st ; [L20] int t1_st ; [L21] int m_i ; [L22] int t1_i ; [L23] int M_E = 2; [L24] int T1_E = 2; [L25] int E_1 = 2; [L441] int __retres1 ; [L445] CALL init_model() [L356] m_i = 1 [L357] t1_i = 1 [L445] RET init_model() [L446] CALL start_simulation() [L382] int kernel_st ; [L383] int tmp ; [L384] int tmp___0 ; [L388] kernel_st = 0 [L389] FCALL update_channels() [L390] CALL init_threads() [L153] COND TRUE m_i == 1 [L154] m_st = 0 [L158] COND TRUE t1_i == 1 [L159] t1_st = 0 [L390] RET init_threads() [L391] CALL fire_delta_events() [L242] COND FALSE !(M_E == 0) [L247] COND FALSE !(T1_E == 0) [L252] COND FALSE !(E_1 == 0) [L391] RET fire_delta_events() [L392] CALL activate_threads() [L285] int tmp ; [L286] int tmp___0 ; [L290] CALL, EXPR is_master_triggered() [L104] int __retres1 ; [L107] COND FALSE !(m_pc == 1) [L117] __retres1 = 0 [L119] return (__retres1); [L290] RET, EXPR is_master_triggered() [L290] tmp = is_master_triggered() [L292] COND FALSE !(\read(tmp)) [L298] CALL, EXPR is_transmit1_triggered() [L123] int __retres1 ; [L126] COND FALSE !(t1_pc == 1) [L136] __retres1 = 0 [L138] return (__retres1); [L298] RET, EXPR is_transmit1_triggered() [L298] tmp___0 = is_transmit1_triggered() [L300] COND FALSE !(\read(tmp___0)) [L392] RET activate_threads() [L393] CALL reset_delta_events() [L265] COND FALSE !(M_E == 1) [L270] COND FALSE !(T1_E == 1) [L275] COND FALSE !(E_1 == 1) [L393] RET reset_delta_events() [L396] COND TRUE 1 [L399] kernel_st = 1 [L400] CALL eval() [L189] int tmp ; [L193] COND TRUE 1 [L196] CALL, EXPR exists_runnable_thread() [L168] int __retres1 ; [L171] COND TRUE m_st == 0 [L172] __retres1 = 1 [L184] return (__retres1); [L196] RET, EXPR exists_runnable_thread() [L196] tmp = exists_runnable_thread() [L198] COND TRUE \read(tmp) [L203] COND TRUE m_st == 0 [L204] int tmp_ndt_1; [L205] tmp_ndt_1 = __VERIFIER_nondet_int() [L206] COND FALSE !(\read(tmp_ndt_1)) [L217] COND TRUE t1_st == 0 [L218] int tmp_ndt_2; [L219] tmp_ndt_2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp_ndt_2) [L222] t1_st = 1 [L223] CALL transmit1() [L74] COND TRUE t1_pc == 0 [L85] COND TRUE 1 [L87] t1_pc = 1 [L88] t1_st = 2 [L223] RET transmit1() [L193] COND TRUE 1 [L196] CALL, EXPR exists_runnable_thread() [L168] int __retres1 ; [L171] COND TRUE m_st == 0 [L172] __retres1 = 1 [L184] return (__retres1); [L196] RET, EXPR exists_runnable_thread() [L196] tmp = exists_runnable_thread() [L198] COND TRUE \read(tmp) [L203] COND TRUE m_st == 0 [L204] int tmp_ndt_1; [L205] tmp_ndt_1 = __VERIFIER_nondet_int() [L206] COND FALSE !(\read(tmp_ndt_1)) [L217] COND TRUE t1_st == 0 [L218] int tmp_ndt_2; [L219] tmp_ndt_2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp_ndt_2) [L222] t1_st = 1 [L223] CALL transmit1() [L74] COND FALSE !(t1_pc == 0) [L77] COND TRUE t1_pc == 1 [L93] CALL error() [L13] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 213 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.9s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 645 SDtfs, 2447 SDslu, 179 SDs, 0 SdLazy, 2733 SolverSat, 921 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=670occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 745 StatesRemovedByMinimization, 3 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...