/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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.16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 17:59:20,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 17:59:20,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 17:59:20,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 17:59:20,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 17:59:20,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 17:59:20,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 17:59:20,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 17:59:20,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 17:59:20,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 17:59:20,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 17:59:20,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 17:59:20,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 17:59:20,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 17:59:20,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 17:59:20,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 17:59:20,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 17:59:20,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 17:59:20,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 17:59:20,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 17:59:20,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 17:59:20,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 17:59:20,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 17:59:20,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 17:59:20,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 17:59:20,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 17:59:20,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 17:59:20,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 17:59:20,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 17:59:20,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 17:59:20,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 17:59:20,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 17:59:20,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 17:59:20,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 17:59:20,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 17:59:20,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 17:59:20,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 17:59:20,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 17:59:20,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 17:59:20,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 17:59:20,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 17:59:20,573 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 17:59:20,593 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 17:59:20,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 17:59:20,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 17:59:20,597 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 17:59:20,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 17:59:20,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 17:59:20,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 17:59:20,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 17:59:20,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 17:59:20,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 17:59:20,599 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 17:59:20,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 17:59:20,600 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 17:59:20,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 17:59:20,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 17:59:20,601 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 17:59:20,601 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 17:59:20,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 17:59:20,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 17:59:20,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 17:59:20,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 17:59:20,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 17:59:20,603 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 17:59:21,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 17:59:21,105 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 17:59:21,114 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 17:59:21,116 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 17:59:21,118 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 17:59:21,119 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c [2020-09-04 17:59:21,201 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5154cdd72/0d4d356e6fc44a3c9671daa2492b89eb/FLAG546e67878 [2020-09-04 17:59:21,801 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 17:59:21,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.16.cil.c [2020-09-04 17:59:21,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5154cdd72/0d4d356e6fc44a3c9671daa2492b89eb/FLAG546e67878 [2020-09-04 17:59:22,081 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5154cdd72/0d4d356e6fc44a3c9671daa2492b89eb [2020-09-04 17:59:22,097 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 17:59:22,099 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 17:59:22,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 17:59:22,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 17:59:22,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 17:59:22,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:59:22" (1/1) ... [2020-09-04 17:59:22,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@441bb81b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:22, skipping insertion in model container [2020-09-04 17:59:22,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:59:22" (1/1) ... [2020-09-04 17:59:22,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 17:59:22,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 17:59:22,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:59:22,790 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 17:59:22,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:59:22,934 INFO L208 MainTranslator]: Completed translation [2020-09-04 17:59:22,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:22 WrapperNode [2020-09-04 17:59:22,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 17:59:22,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 17:59:22,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 17:59:22,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 17:59:22,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:22" (1/1) ... [2020-09-04 17:59:22,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:22" (1/1) ... [2020-09-04 17:59:22,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:22" (1/1) ... [2020-09-04 17:59:22,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:22" (1/1) ... [2020-09-04 17:59:23,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:22" (1/1) ... [2020-09-04 17:59:23,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:22" (1/1) ... [2020-09-04 17:59:23,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:22" (1/1) ... [2020-09-04 17:59:23,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 17:59:23,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 17:59:23,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 17:59:23,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 17:59:23,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 17:59:23,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 17:59:23,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 17:59:23,171 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-04 17:59:23,171 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-09-04 17:59:23,171 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-09-04 17:59:23,172 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-09-04 17:59:23,172 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-09-04 17:59:23,172 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-09-04 17:59:23,172 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-09-04 17:59:23,172 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-09-04 17:59:23,172 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-09-04 17:59:23,173 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-09-04 17:59:23,173 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-09-04 17:59:23,173 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-09-04 17:59:23,173 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-09-04 17:59:23,173 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-09-04 17:59:23,174 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-09-04 17:59:23,174 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit14 [2020-09-04 17:59:23,175 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-09-04 17:59:23,175 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-09-04 17:59:23,176 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-09-04 17:59:23,176 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-09-04 17:59:23,177 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-09-04 17:59:23,177 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-09-04 17:59:23,178 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-09-04 17:59:23,178 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-09-04 17:59:23,178 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-09-04 17:59:23,178 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-09-04 17:59:23,178 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-09-04 17:59:23,178 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-09-04 17:59:23,179 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-09-04 17:59:23,179 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-09-04 17:59:23,180 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit14_triggered [2020-09-04 17:59:23,180 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-09-04 17:59:23,180 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-04 17:59:23,180 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-04 17:59:23,180 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-04 17:59:23,180 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-09-04 17:59:23,181 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-09-04 17:59:23,181 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-09-04 17:59:23,181 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-09-04 17:59:23,181 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-09-04 17:59:23,181 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-09-04 17:59:23,181 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-04 17:59:23,182 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-04 17:59:23,182 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-04 17:59:23,182 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 17:59:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 17:59:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 17:59:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-04 17:59:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-09-04 17:59:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-09-04 17:59:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-09-04 17:59:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-09-04 17:59:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-09-04 17:59:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-09-04 17:59:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-09-04 17:59:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-09-04 17:59:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-09-04 17:59:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-09-04 17:59:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-09-04 17:59:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-09-04 17:59:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-09-04 17:59:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-09-04 17:59:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit14_triggered [2020-09-04 17:59:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-09-04 17:59:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-09-04 17:59:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-09-04 17:59:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-09-04 17:59:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-09-04 17:59:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-09-04 17:59:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-09-04 17:59:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-09-04 17:59:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-09-04 17:59:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-09-04 17:59:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-09-04 17:59:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-09-04 17:59:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-09-04 17:59:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-09-04 17:59:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-09-04 17:59:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure transmit14 [2020-09-04 17:59:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-09-04 17:59:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-04 17:59:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-04 17:59:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-04 17:59:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-09-04 17:59:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-09-04 17:59:23,191 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-09-04 17:59:23,191 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-09-04 17:59:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-09-04 17:59:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-04 17:59:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-04 17:59:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-04 17:59:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 17:59:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 17:59:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 17:59:24,791 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 17:59:24,792 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-09-04 17:59:24,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:59:24 BoogieIcfgContainer [2020-09-04 17:59:24,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 17:59:24,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 17:59:24,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 17:59:24,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 17:59:24,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 05:59:22" (1/3) ... [2020-09-04 17:59:24,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725a3f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:59:24, skipping insertion in model container [2020-09-04 17:59:24,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:22" (2/3) ... [2020-09-04 17:59:24,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725a3f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:59:24, skipping insertion in model container [2020-09-04 17:59:24,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:59:24" (3/3) ... [2020-09-04 17:59:24,827 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c [2020-09-04 17:59:24,840 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 17:59:24,861 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 17:59:24,886 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 17:59:24,928 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 17:59:24,929 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 17:59:24,929 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 17:59:24,929 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 17:59:24,929 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 17:59:24,929 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 17:59:24,930 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 17:59:24,930 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 17:59:24,968 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states. [2020-09-04 17:59:25,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-09-04 17:59:25,021 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:59:25,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:59:25,026 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:59:25,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:59:25,039 INFO L82 PathProgramCache]: Analyzing trace with hash -2106220204, now seen corresponding path program 1 times [2020-09-04 17:59:25,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:59:25,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2027840689] [2020-09-04 17:59:25,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:59:25,150 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:59:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,195 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-04 17:59:26,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:59:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-04 17:59:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-04 17:59:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 17:59:26,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-04 17:59:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-04 17:59:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-04 17:59:26,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 17:59:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 17:59:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-04 17:59:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-04 17:59:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-04 17:59:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-04 17:59:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-04 17:59:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-04 17:59:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-04 17:59:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-04 17:59:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-04 17:59:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-04 17:59:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-04 17:59:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-04 17:59:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-09-04 17:59:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-09-04 17:59:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:26,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:59:26,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2027840689] [2020-09-04 17:59:26,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:59:26,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 17:59:26,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42138455] [2020-09-04 17:59:26,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 17:59:26,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:59:26,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 17:59:26,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 17:59:26,916 INFO L87 Difference]: Start difference. First operand 926 states. Second operand 8 states. [2020-09-04 17:59:27,199 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-09-04 17:59:27,431 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-04 17:59:28,096 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-09-04 17:59:28,290 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-04 17:59:28,840 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-04 17:59:29,095 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-04 17:59:34,576 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-09-04 17:59:39,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:59:39,955 INFO L93 Difference]: Finished difference Result 2394 states and 3287 transitions. [2020-09-04 17:59:39,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 17:59:39,958 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-09-04 17:59:39,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:59:39,999 INFO L225 Difference]: With dead ends: 2394 [2020-09-04 17:59:39,999 INFO L226 Difference]: Without dead ends: 1560 [2020-09-04 17:59:40,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-09-04 17:59:40,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2020-09-04 17:59:40,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 915. [2020-09-04 17:59:40,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2020-09-04 17:59:40,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1158 transitions. [2020-09-04 17:59:40,627 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1158 transitions. Word has length 410 [2020-09-04 17:59:40,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:59:40,629 INFO L479 AbstractCegarLoop]: Abstraction has 915 states and 1158 transitions. [2020-09-04 17:59:40,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 17:59:40,629 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1158 transitions. [2020-09-04 17:59:40,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-09-04 17:59:40,639 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:59:40,639 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:59:40,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 17:59:40,640 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:59:40,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:59:40,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1066186508, now seen corresponding path program 1 times [2020-09-04 17:59:40,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:59:40,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123570759] [2020-09-04 17:59:40,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:59:40,645 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:59:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,166 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-04 17:59:41,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:59:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-04 17:59:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-04 17:59:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 17:59:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-04 17:59:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-04 17:59:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-04 17:59:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 17:59:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 17:59:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-04 17:59:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-04 17:59:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-04 17:59:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-04 17:59:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-04 17:59:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-04 17:59:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-04 17:59:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-04 17:59:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-04 17:59:41,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-04 17:59:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-04 17:59:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-04 17:59:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-09-04 17:59:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-09-04 17:59:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:41,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:59:41,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123570759] [2020-09-04 17:59:41,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:59:41,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 17:59:41,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283620842] [2020-09-04 17:59:41,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 17:59:41,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:59:41,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 17:59:41,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 17:59:41,989 INFO L87 Difference]: Start difference. First operand 915 states and 1158 transitions. Second operand 8 states. [2020-09-04 17:59:42,280 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-09-04 17:59:42,465 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-04 17:59:43,130 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-09-04 17:59:43,313 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-09-04 17:59:43,481 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-04 17:59:43,948 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-04 17:59:44,179 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-04 17:59:49,333 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-09-04 17:59:54,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:59:54,339 INFO L93 Difference]: Finished difference Result 2363 states and 3085 transitions. [2020-09-04 17:59:54,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 17:59:54,340 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-09-04 17:59:54,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:59:54,351 INFO L225 Difference]: With dead ends: 2363 [2020-09-04 17:59:54,351 INFO L226 Difference]: Without dead ends: 1559 [2020-09-04 17:59:54,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-09-04 17:59:54,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2020-09-04 17:59:54,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 914. [2020-09-04 17:59:54,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 914 states. [2020-09-04 17:59:54,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1156 transitions. [2020-09-04 17:59:54,707 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1156 transitions. Word has length 410 [2020-09-04 17:59:54,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:59:54,708 INFO L479 AbstractCegarLoop]: Abstraction has 914 states and 1156 transitions. [2020-09-04 17:59:54,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 17:59:54,708 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1156 transitions. [2020-09-04 17:59:54,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-09-04 17:59:54,716 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:59:54,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:59:54,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 17:59:54,717 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:59:54,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:59:54,718 INFO L82 PathProgramCache]: Analyzing trace with hash -642400108, now seen corresponding path program 1 times [2020-09-04 17:59:54,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:59:54,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1981781503] [2020-09-04 17:59:54,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:59:54,721 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:59:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,156 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-04 17:59:55,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:59:55,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-04 17:59:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-04 17:59:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 17:59:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-04 17:59:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-04 17:59:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-04 17:59:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 17:59:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 17:59:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-04 17:59:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-04 17:59:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-04 17:59:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-04 17:59:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-04 17:59:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-04 17:59:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-04 17:59:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-04 17:59:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-04 17:59:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-04 17:59:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-04 17:59:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-04 17:59:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-09-04 17:59:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-09-04 17:59:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:55,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:59:55,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1981781503] [2020-09-04 17:59:55,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:59:55,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 17:59:55,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064510701] [2020-09-04 17:59:55,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 17:59:55,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:59:55,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 17:59:55,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 17:59:55,755 INFO L87 Difference]: Start difference. First operand 914 states and 1156 transitions. Second operand 8 states. [2020-09-04 17:59:56,012 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-09-04 17:59:56,245 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-04 17:59:56,976 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-09-04 17:59:57,151 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-09-04 17:59:57,338 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-04 17:59:57,793 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-04 17:59:58,015 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-04 18:00:03,281 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-09-04 18:00:09,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 18:00:09,500 INFO L93 Difference]: Finished difference Result 2356 states and 3075 transitions. [2020-09-04 18:00:09,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 18:00:09,502 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-09-04 18:00:09,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 18:00:09,514 INFO L225 Difference]: With dead ends: 2356 [2020-09-04 18:00:09,515 INFO L226 Difference]: Without dead ends: 1558 [2020-09-04 18:00:09,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-09-04 18:00:09,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2020-09-04 18:00:10,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 913. [2020-09-04 18:00:10,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2020-09-04 18:00:10,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1154 transitions. [2020-09-04 18:00:10,326 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1154 transitions. Word has length 410 [2020-09-04 18:00:10,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 18:00:10,330 INFO L479 AbstractCegarLoop]: Abstraction has 913 states and 1154 transitions. [2020-09-04 18:00:10,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 18:00:10,331 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1154 transitions. [2020-09-04 18:00:10,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-09-04 18:00:10,350 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 18:00:10,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 18:00:10,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 18:00:10,352 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 18:00:10,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 18:00:10,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1361381428, now seen corresponding path program 1 times [2020-09-04 18:00:10,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 18:00:10,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1082642870] [2020-09-04 18:00:10,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 18:00:10,371 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 18:00:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,019 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-04 18:00:11,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 18:00:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-04 18:00:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-04 18:00:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 18:00:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-04 18:00:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-04 18:00:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-04 18:00:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 18:00:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 18:00:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-04 18:00:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-04 18:00:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-04 18:00:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-04 18:00:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-04 18:00:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-04 18:00:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-04 18:00:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-04 18:00:11,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-04 18:00:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-04 18:00:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-04 18:00:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-04 18:00:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-09-04 18:00:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-09-04 18:00:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:11,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 18:00:11,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1082642870] [2020-09-04 18:00:11,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 18:00:11,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 18:00:11,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061173379] [2020-09-04 18:00:11,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 18:00:11,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 18:00:11,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 18:00:11,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 18:00:11,901 INFO L87 Difference]: Start difference. First operand 913 states and 1154 transitions. Second operand 8 states. [2020-09-04 18:00:12,095 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-09-04 18:00:12,302 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-04 18:00:13,041 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-09-04 18:00:13,216 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-09-04 18:00:13,425 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-04 18:00:13,877 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-04 18:00:14,102 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-04 18:00:19,399 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-09-04 18:00:24,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 18:00:24,834 INFO L93 Difference]: Finished difference Result 2349 states and 3065 transitions. [2020-09-04 18:00:24,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 18:00:24,834 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-09-04 18:00:24,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 18:00:24,845 INFO L225 Difference]: With dead ends: 2349 [2020-09-04 18:00:24,845 INFO L226 Difference]: Without dead ends: 1557 [2020-09-04 18:00:24,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-09-04 18:00:24,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2020-09-04 18:00:25,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 912. [2020-09-04 18:00:25,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 912 states. [2020-09-04 18:00:25,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1152 transitions. [2020-09-04 18:00:25,302 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1152 transitions. Word has length 410 [2020-09-04 18:00:25,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 18:00:25,303 INFO L479 AbstractCegarLoop]: Abstraction has 912 states and 1152 transitions. [2020-09-04 18:00:25,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 18:00:25,303 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1152 transitions. [2020-09-04 18:00:25,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-09-04 18:00:25,310 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 18:00:25,311 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 18:00:25,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 18:00:25,311 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 18:00:25,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 18:00:25,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1571364820, now seen corresponding path program 1 times [2020-09-04 18:00:25,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 18:00:25,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731934852] [2020-09-04 18:00:25,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 18:00:25,315 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 18:00:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:25,773 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-04 18:00:25,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 18:00:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:25,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-04 18:00:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:25,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-04 18:00:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:25,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 18:00:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:25,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-04 18:00:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-04 18:00:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-04 18:00:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 18:00:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 18:00:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-04 18:00:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-04 18:00:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-04 18:00:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-04 18:00:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-04 18:00:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-04 18:00:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-04 18:00:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-04 18:00:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-04 18:00:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-04 18:00:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-04 18:00:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-04 18:00:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-09-04 18:00:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-09-04 18:00:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:26,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 18:00:26,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731934852] [2020-09-04 18:00:26,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 18:00:26,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 18:00:26,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642942604] [2020-09-04 18:00:26,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 18:00:26,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 18:00:26,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 18:00:26,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 18:00:26,255 INFO L87 Difference]: Start difference. First operand 912 states and 1152 transitions. Second operand 8 states. [2020-09-04 18:00:26,519 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-09-04 18:00:26,747 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-04 18:00:27,486 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-09-04 18:00:27,696 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-09-04 18:00:27,903 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-04 18:00:28,324 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-04 18:00:28,541 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-04 18:00:33,746 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-09-04 18:00:39,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 18:00:39,297 INFO L93 Difference]: Finished difference Result 2342 states and 3055 transitions. [2020-09-04 18:00:39,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 18:00:39,298 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-09-04 18:00:39,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 18:00:39,308 INFO L225 Difference]: With dead ends: 2342 [2020-09-04 18:00:39,309 INFO L226 Difference]: Without dead ends: 1556 [2020-09-04 18:00:39,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-09-04 18:00:39,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2020-09-04 18:00:39,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 911. [2020-09-04 18:00:39,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 911 states. [2020-09-04 18:00:39,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1150 transitions. [2020-09-04 18:00:39,763 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1150 transitions. Word has length 410 [2020-09-04 18:00:39,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 18:00:39,763 INFO L479 AbstractCegarLoop]: Abstraction has 911 states and 1150 transitions. [2020-09-04 18:00:39,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 18:00:39,763 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1150 transitions. [2020-09-04 18:00:39,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-09-04 18:00:39,767 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 18:00:39,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 18:00:39,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 18:00:39,768 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 18:00:39,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 18:00:39,768 INFO L82 PathProgramCache]: Analyzing trace with hash -366344332, now seen corresponding path program 1 times [2020-09-04 18:00:39,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 18:00:39,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121997427] [2020-09-04 18:00:39,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 18:00:39,771 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 18:00:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,242 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-04 18:00:40,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 18:00:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-04 18:00:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-04 18:00:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 18:00:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-04 18:00:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-04 18:00:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-04 18:00:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 18:00:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 18:00:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-04 18:00:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-04 18:00:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-04 18:00:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-04 18:00:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-04 18:00:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-04 18:00:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-04 18:00:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-04 18:00:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-04 18:00:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-04 18:00:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-04 18:00:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-04 18:00:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-09-04 18:00:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-09-04 18:00:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:40,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 18:00:40,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2121997427] [2020-09-04 18:00:40,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 18:00:40,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 18:00:40,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752417877] [2020-09-04 18:00:40,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 18:00:40,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 18:00:40,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 18:00:40,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 18:00:40,777 INFO L87 Difference]: Start difference. First operand 911 states and 1150 transitions. Second operand 8 states. [2020-09-04 18:00:41,021 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-09-04 18:00:41,241 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-04 18:00:41,986 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-09-04 18:00:42,173 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-09-04 18:00:42,395 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-04 18:00:42,837 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-04 18:00:43,089 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-04 18:00:48,236 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-09-04 18:00:53,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 18:00:53,798 INFO L93 Difference]: Finished difference Result 2335 states and 3045 transitions. [2020-09-04 18:00:53,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 18:00:53,799 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-09-04 18:00:53,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 18:00:53,808 INFO L225 Difference]: With dead ends: 2335 [2020-09-04 18:00:53,808 INFO L226 Difference]: Without dead ends: 1555 [2020-09-04 18:00:53,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-09-04 18:00:53,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2020-09-04 18:00:54,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 910. [2020-09-04 18:00:54,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 910 states. [2020-09-04 18:00:54,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1148 transitions. [2020-09-04 18:00:54,189 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1148 transitions. Word has length 410 [2020-09-04 18:00:54,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 18:00:54,189 INFO L479 AbstractCegarLoop]: Abstraction has 910 states and 1148 transitions. [2020-09-04 18:00:54,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 18:00:54,189 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1148 transitions. [2020-09-04 18:00:54,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-09-04 18:00:54,192 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 18:00:54,193 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 18:00:54,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 18:00:54,193 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 18:00:54,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 18:00:54,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1785741548, now seen corresponding path program 1 times [2020-09-04 18:00:54,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 18:00:54,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659065018] [2020-09-04 18:00:54,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 18:00:54,196 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 18:00:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,631 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-04 18:00:54,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 18:00:54,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-04 18:00:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-04 18:00:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 18:00:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-04 18:00:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-04 18:00:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-04 18:00:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 18:00:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 18:00:54,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-04 18:00:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-04 18:00:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-04 18:00:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-04 18:00:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-04 18:00:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-04 18:00:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-04 18:00:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-04 18:00:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-04 18:00:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-04 18:00:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-04 18:00:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-04 18:00:54,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-09-04 18:00:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:54,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-09-04 18:00:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:00:55,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 18:00:55,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1659065018] [2020-09-04 18:00:55,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 18:00:55,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 18:00:55,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868150150] [2020-09-04 18:00:55,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 18:00:55,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 18:00:55,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 18:00:55,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 18:00:55,106 INFO L87 Difference]: Start difference. First operand 910 states and 1148 transitions. Second operand 8 states. [2020-09-04 18:00:55,355 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-09-04 18:00:55,574 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-04 18:00:56,290 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-09-04 18:00:56,471 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-09-04 18:00:56,701 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-04 18:00:57,100 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-04 18:00:57,320 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-04 18:01:02,489 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-09-04 18:01:08,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 18:01:08,065 INFO L93 Difference]: Finished difference Result 2328 states and 3035 transitions. [2020-09-04 18:01:08,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 18:01:08,066 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-09-04 18:01:08,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 18:01:08,075 INFO L225 Difference]: With dead ends: 2328 [2020-09-04 18:01:08,075 INFO L226 Difference]: Without dead ends: 1554 [2020-09-04 18:01:08,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-09-04 18:01:08,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2020-09-04 18:01:08,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 909. [2020-09-04 18:01:08,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 909 states. [2020-09-04 18:01:08,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1146 transitions. [2020-09-04 18:01:08,592 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1146 transitions. Word has length 410 [2020-09-04 18:01:08,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 18:01:08,592 INFO L479 AbstractCegarLoop]: Abstraction has 909 states and 1146 transitions. [2020-09-04 18:01:08,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 18:01:08,592 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1146 transitions. [2020-09-04 18:01:08,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-09-04 18:01:08,596 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 18:01:08,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 18:01:08,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-04 18:01:08,597 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 18:01:08,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 18:01:08,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1295890764, now seen corresponding path program 1 times [2020-09-04 18:01:08,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 18:01:08,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1743495578] [2020-09-04 18:01:08,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 18:01:08,600 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 18:01:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,065 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-04 18:01:09,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 18:01:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-04 18:01:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-04 18:01:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 18:01:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-04 18:01:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-04 18:01:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-04 18:01:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 18:01:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 18:01:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-04 18:01:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-04 18:01:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-04 18:01:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-04 18:01:09,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-04 18:01:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-04 18:01:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-04 18:01:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-04 18:01:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-04 18:01:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-04 18:01:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-04 18:01:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-04 18:01:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-09-04 18:01:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-09-04 18:01:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:09,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 18:01:09,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1743495578] [2020-09-04 18:01:09,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 18:01:09,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 18:01:09,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613423799] [2020-09-04 18:01:09,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 18:01:09,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 18:01:09,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 18:01:09,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 18:01:09,513 INFO L87 Difference]: Start difference. First operand 909 states and 1146 transitions. Second operand 8 states. [2020-09-04 18:01:09,759 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-09-04 18:01:09,985 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-04 18:01:10,716 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-09-04 18:01:10,896 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-09-04 18:01:11,136 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-04 18:01:11,518 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-04 18:01:11,739 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-04 18:01:16,903 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-09-04 18:01:22,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 18:01:22,567 INFO L93 Difference]: Finished difference Result 2321 states and 3025 transitions. [2020-09-04 18:01:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 18:01:22,568 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2020-09-04 18:01:22,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 18:01:22,576 INFO L225 Difference]: With dead ends: 2321 [2020-09-04 18:01:22,576 INFO L226 Difference]: Without dead ends: 1553 [2020-09-04 18:01:22,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-09-04 18:01:22,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2020-09-04 18:01:23,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 908. [2020-09-04 18:01:23,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 908 states. [2020-09-04 18:01:23,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1144 transitions. [2020-09-04 18:01:23,110 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1144 transitions. Word has length 410 [2020-09-04 18:01:23,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 18:01:23,110 INFO L479 AbstractCegarLoop]: Abstraction has 908 states and 1144 transitions. [2020-09-04 18:01:23,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 18:01:23,111 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1144 transitions. [2020-09-04 18:01:23,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-09-04 18:01:23,115 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 18:01:23,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 18:01:23,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-04 18:01:23,116 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 18:01:23,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 18:01:23,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1219075668, now seen corresponding path program 1 times [2020-09-04 18:01:23,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 18:01:23,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553371484] [2020-09-04 18:01:23,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 18:01:23,119 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 18:01:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,628 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-04 18:01:23,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 18:01:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-04 18:01:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-04 18:01:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 18:01:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-04 18:01:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-04 18:01:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-04 18:01:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 18:01:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 18:01:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-04 18:01:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-04 18:01:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-04 18:01:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-04 18:01:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-04 18:01:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-04 18:01:23,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-04 18:01:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-04 18:01:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-04 18:01:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-04 18:01:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-04 18:01:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-04 18:01:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-09-04 18:01:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:23,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-09-04 18:01:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 18:01:24,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 18:01:24,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553371484] [2020-09-04 18:01:24,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 18:01:24,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 18:01:24,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518023596] [2020-09-04 18:01:24,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 18:01:24,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 18:01:24,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 18:01:24,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 18:01:24,057 INFO L87 Difference]: Start difference. First operand 908 states and 1144 transitions. Second operand 7 states. [2020-09-04 18:01:24,311 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-09-04 18:01:24,531 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-04 18:01:25,247 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-04 18:01:25,423 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-04 18:01:29,264 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-04 18:01:29,954 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-09-04 18:01:44,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 18:01:44,341 INFO L93 Difference]: Finished difference Result 3648 states and 4851 transitions. [2020-09-04 18:01:44,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 18:01:44,342 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 410 [2020-09-04 18:01:44,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 18:01:44,357 INFO L225 Difference]: With dead ends: 3648 [2020-09-04 18:01:44,358 INFO L226 Difference]: Without dead ends: 2886 [2020-09-04 18:01:44,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-09-04 18:01:44,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2020-09-04 18:01:45,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 1841. [2020-09-04 18:01:45,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1841 states. [2020-09-04 18:01:45,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2390 transitions. [2020-09-04 18:01:45,364 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2390 transitions. Word has length 410 [2020-09-04 18:01:45,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 18:01:45,365 INFO L479 AbstractCegarLoop]: Abstraction has 1841 states and 2390 transitions. [2020-09-04 18:01:45,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 18:01:45,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2390 transitions. [2020-09-04 18:01:45,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2020-09-04 18:01:45,370 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 18:01:45,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 18:01:45,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-04 18:01:45,370 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 18:01:45,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 18:01:45,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1492346934, now seen corresponding path program 1 times [2020-09-04 18:01:45,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 18:01:45,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942682749] [2020-09-04 18:01:45,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 18:01:45,374 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 18:01:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 18:01:45,471 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 18:01:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 18:01:45,576 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 18:01:45,938 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 18:01:45,938 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 18:01:45,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-04 18:01:45,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 06:01:45 BoogieIcfgContainer [2020-09-04 18:01:45,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 18:01:45,995 INFO L168 Benchmark]: Toolchain (without parser) took 143897.13 ms. Allocated memory was 148.4 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 104.1 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 239.8 MB. Max. memory is 7.1 GB. [2020-09-04 18:01:45,996 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 148.4 MB. Free memory was 124.0 MB in the beginning and 123.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 18:01:45,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 834.58 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 103.9 MB in the beginning and 170.6 MB in the end (delta: -66.7 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2020-09-04 18:01:45,997 INFO L168 Benchmark]: Boogie Preprocessor took 137.21 ms. Allocated memory is still 204.5 MB. Free memory was 170.6 MB in the beginning and 166.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-09-04 18:01:45,998 INFO L168 Benchmark]: RCFGBuilder took 1741.38 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 166.0 MB in the beginning and 134.7 MB in the end (delta: 31.3 MB). Peak memory consumption was 76.4 MB. Max. memory is 7.1 GB. [2020-09-04 18:01:45,998 INFO L168 Benchmark]: TraceAbstraction took 141176.20 ms. Allocated memory was 233.8 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 134.7 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 184.9 MB. Max. memory is 7.1 GB. [2020-09-04 18:01:46,001 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 148.4 MB. Free memory was 124.0 MB in the beginning and 123.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 834.58 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 103.9 MB in the beginning and 170.6 MB in the end (delta: -66.7 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.21 ms. Allocated memory is still 204.5 MB. Free memory was 170.6 MB in the beginning and 166.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1741.38 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 166.0 MB in the beginning and 134.7 MB in the end (delta: 31.3 MB). Peak memory consumption was 76.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 141176.20 ms. Allocated memory was 233.8 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 134.7 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 184.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] int m_pc = 0; [L16] int t1_pc = 0; [L17] int t2_pc = 0; [L18] int t3_pc = 0; [L19] int t4_pc = 0; [L20] int t5_pc = 0; [L21] int t6_pc = 0; [L22] int t7_pc = 0; [L23] int t8_pc = 0; [L24] int t9_pc = 0; [L25] int t10_pc = 0; [L26] int t11_pc = 0; [L27] int t12_pc = 0; [L28] int t13_pc = 0; [L29] int t14_pc = 0; [L30] int m_st ; [L31] int t1_st ; [L32] int t2_st ; [L33] int t3_st ; [L34] int t4_st ; [L35] int t5_st ; [L36] int t6_st ; [L37] int t7_st ; [L38] int t8_st ; [L39] int t9_st ; [L40] int t10_st ; [L41] int t11_st ; [L42] int t12_st ; [L43] int t13_st ; [L44] int t14_st ; [L45] int m_i ; [L46] int t1_i ; [L47] int t2_i ; [L48] int t3_i ; [L49] int t4_i ; [L50] int t5_i ; [L51] int t6_i ; [L52] int t7_i ; [L53] int t8_i ; [L54] int t9_i ; [L55] int t10_i ; [L56] int t11_i ; [L57] int t12_i ; [L58] int t13_i ; [L59] int t14_i ; [L60] int M_E = 2; [L61] int T1_E = 2; [L62] int T2_E = 2; [L63] int T3_E = 2; [L64] int T4_E = 2; [L65] int T5_E = 2; [L66] int T6_E = 2; [L67] int T7_E = 2; [L68] int T8_E = 2; [L69] int T9_E = 2; [L70] int T10_E = 2; [L71] int T11_E = 2; [L72] int T12_E = 2; [L73] int T13_E = 2; [L74] int T14_E = 2; [L75] int E_1 = 2; [L76] int E_2 = 2; [L77] int E_3 = 2; [L78] int E_4 = 2; [L79] int E_5 = 2; [L80] int E_6 = 2; [L81] int E_7 = 2; [L82] int E_8 = 2; [L83] int E_9 = 2; [L84] int E_10 = 2; [L85] int E_11 = 2; [L86] int E_12 = 2; [L87] int E_13 = 2; [L88] int E_14 = 2; [L2052] int __retres1 ; [L2056] CALL init_model() [L1954] m_i = 1 [L1955] t1_i = 1 [L1956] t2_i = 1 [L1957] t3_i = 1 [L1958] t4_i = 1 [L1959] t5_i = 1 [L1960] t6_i = 1 [L1961] t7_i = 1 [L1962] t8_i = 1 [L1963] t9_i = 1 [L1964] t10_i = 1 [L1965] t11_i = 1 [L1966] t12_i = 1 [L1967] t13_i = 1 [L1968] t14_i = 1 [L2056] RET init_model() [L2057] CALL start_simulation() [L1993] int kernel_st ; [L1994] int tmp ; [L1995] int tmp___0 ; [L1999] kernel_st = 0 [L2000] FCALL update_channels() [L2001] CALL init_threads() [L929] COND TRUE m_i == 1 [L930] m_st = 0 [L934] COND TRUE t1_i == 1 [L935] t1_st = 0 [L939] COND TRUE t2_i == 1 [L940] t2_st = 0 [L944] COND TRUE t3_i == 1 [L945] t3_st = 0 [L949] COND TRUE t4_i == 1 [L950] t4_st = 0 [L954] COND TRUE t5_i == 1 [L955] t5_st = 0 [L959] COND TRUE t6_i == 1 [L960] t6_st = 0 [L964] COND TRUE t7_i == 1 [L965] t7_st = 0 [L969] COND TRUE t8_i == 1 [L970] t8_st = 0 [L974] COND TRUE t9_i == 1 [L975] t9_st = 0 [L979] COND TRUE t10_i == 1 [L980] t10_st = 0 [L984] COND TRUE t11_i == 1 [L985] t11_st = 0 [L989] COND TRUE t12_i == 1 [L990] t12_st = 0 [L994] COND TRUE t13_i == 1 [L995] t13_st = 0 [L999] COND TRUE t14_i == 1 [L1000] t14_st = 0 [L2001] RET init_threads() [L2002] CALL fire_delta_events() [L1332] COND FALSE !(M_E == 0) [L1337] COND FALSE !(T1_E == 0) [L1342] COND FALSE !(T2_E == 0) [L1347] COND FALSE !(T3_E == 0) [L1352] COND FALSE !(T4_E == 0) [L1357] COND FALSE !(T5_E == 0) [L1362] COND FALSE !(T6_E == 0) [L1367] COND FALSE !(T7_E == 0) [L1372] COND FALSE !(T8_E == 0) [L1377] COND FALSE !(T9_E == 0) [L1382] COND FALSE !(T10_E == 0) [L1387] COND FALSE !(T11_E == 0) [L1392] COND FALSE !(T12_E == 0) [L1397] COND FALSE !(T13_E == 0) [L1402] COND FALSE !(T14_E == 0) [L1407] COND FALSE !(E_1 == 0) [L1412] COND FALSE !(E_2 == 0) [L1417] COND FALSE !(E_3 == 0) [L1422] COND FALSE !(E_4 == 0) [L1427] COND FALSE !(E_5 == 0) [L1432] COND FALSE !(E_6 == 0) [L1437] COND FALSE !(E_7 == 0) [L1442] COND FALSE !(E_8 == 0) [L1447] COND FALSE !(E_9 == 0) [L1452] COND FALSE !(E_10 == 0) [L1457] COND FALSE !(E_11 == 0) [L1462] COND FALSE !(E_12 == 0) [L1467] COND FALSE !(E_13 == 0) [L1472] COND FALSE !(E_14 == 0) [L2002] RET fire_delta_events() [L2003] CALL activate_threads() [L1635] int tmp ; [L1636] int tmp___0 ; [L1637] int tmp___1 ; [L1638] int tmp___2 ; [L1639] int tmp___3 ; [L1640] int tmp___4 ; [L1641] int tmp___5 ; [L1642] int tmp___6 ; [L1643] int tmp___7 ; [L1644] int tmp___8 ; [L1645] int tmp___9 ; [L1646] int tmp___10 ; [L1647] int tmp___11 ; [L1648] int tmp___12 ; [L1649] int tmp___13 ; [L1654] CALL, EXPR is_master_triggered() [L633] int __retres1 ; [L636] COND FALSE !(m_pc == 1) [L646] __retres1 = 0 [L648] return (__retres1); [L1654] RET, EXPR is_master_triggered() [L1654] tmp = is_master_triggered() [L1656] COND FALSE !(\read(tmp)) [L1662] CALL, EXPR is_transmit1_triggered() [L652] int __retres1 ; [L655] COND FALSE !(t1_pc == 1) [L665] __retres1 = 0 [L667] return (__retres1); [L1662] RET, EXPR is_transmit1_triggered() [L1662] tmp___0 = is_transmit1_triggered() [L1664] COND FALSE !(\read(tmp___0)) [L1670] CALL, EXPR is_transmit2_triggered() [L671] int __retres1 ; [L674] COND FALSE !(t2_pc == 1) [L684] __retres1 = 0 [L686] return (__retres1); [L1670] RET, EXPR is_transmit2_triggered() [L1670] tmp___1 = is_transmit2_triggered() [L1672] COND FALSE !(\read(tmp___1)) [L1678] CALL, EXPR is_transmit3_triggered() [L690] int __retres1 ; [L693] COND FALSE !(t3_pc == 1) [L703] __retres1 = 0 [L705] return (__retres1); [L1678] RET, EXPR is_transmit3_triggered() [L1678] tmp___2 = is_transmit3_triggered() [L1680] COND FALSE !(\read(tmp___2)) [L1686] CALL, EXPR is_transmit4_triggered() [L709] int __retres1 ; [L712] COND FALSE !(t4_pc == 1) [L722] __retres1 = 0 [L724] return (__retres1); [L1686] RET, EXPR is_transmit4_triggered() [L1686] tmp___3 = is_transmit4_triggered() [L1688] COND FALSE !(\read(tmp___3)) [L1694] CALL, EXPR is_transmit5_triggered() [L728] int __retres1 ; [L731] COND FALSE !(t5_pc == 1) [L741] __retres1 = 0 [L743] return (__retres1); [L1694] RET, EXPR is_transmit5_triggered() [L1694] tmp___4 = is_transmit5_triggered() [L1696] COND FALSE !(\read(tmp___4)) [L1702] CALL, EXPR is_transmit6_triggered() [L747] int __retres1 ; [L750] COND FALSE !(t6_pc == 1) [L760] __retres1 = 0 [L762] return (__retres1); [L1702] RET, EXPR is_transmit6_triggered() [L1702] tmp___5 = is_transmit6_triggered() [L1704] COND FALSE !(\read(tmp___5)) [L1710] CALL, EXPR is_transmit7_triggered() [L766] int __retres1 ; [L769] COND FALSE !(t7_pc == 1) [L779] __retres1 = 0 [L781] return (__retres1); [L1710] RET, EXPR is_transmit7_triggered() [L1710] tmp___6 = is_transmit7_triggered() [L1712] COND FALSE !(\read(tmp___6)) [L1718] CALL, EXPR is_transmit8_triggered() [L785] int __retres1 ; [L788] COND FALSE !(t8_pc == 1) [L798] __retres1 = 0 [L800] return (__retres1); [L1718] RET, EXPR is_transmit8_triggered() [L1718] tmp___7 = is_transmit8_triggered() [L1720] COND FALSE !(\read(tmp___7)) [L1726] CALL, EXPR is_transmit9_triggered() [L804] int __retres1 ; [L807] COND FALSE !(t9_pc == 1) [L817] __retres1 = 0 [L819] return (__retres1); [L1726] RET, EXPR is_transmit9_triggered() [L1726] tmp___8 = is_transmit9_triggered() [L1728] COND FALSE !(\read(tmp___8)) [L1734] CALL, EXPR is_transmit10_triggered() [L823] int __retres1 ; [L826] COND FALSE !(t10_pc == 1) [L836] __retres1 = 0 [L838] return (__retres1); [L1734] RET, EXPR is_transmit10_triggered() [L1734] tmp___9 = is_transmit10_triggered() [L1736] COND FALSE !(\read(tmp___9)) [L1742] CALL, EXPR is_transmit11_triggered() [L842] int __retres1 ; [L845] COND FALSE !(t11_pc == 1) [L855] __retres1 = 0 [L857] return (__retres1); [L1742] RET, EXPR is_transmit11_triggered() [L1742] tmp___10 = is_transmit11_triggered() [L1744] COND FALSE !(\read(tmp___10)) [L1750] CALL, EXPR is_transmit12_triggered() [L861] int __retres1 ; [L864] COND FALSE !(t12_pc == 1) [L874] __retres1 = 0 [L876] return (__retres1); [L1750] RET, EXPR is_transmit12_triggered() [L1750] tmp___11 = is_transmit12_triggered() [L1752] COND FALSE !(\read(tmp___11)) [L1758] CALL, EXPR is_transmit13_triggered() [L880] int __retres1 ; [L883] COND FALSE !(t13_pc == 1) [L893] __retres1 = 0 [L895] return (__retres1); [L1758] RET, EXPR is_transmit13_triggered() [L1758] tmp___12 = is_transmit13_triggered() [L1760] COND FALSE !(\read(tmp___12)) [L1766] CALL, EXPR is_transmit14_triggered() [L899] int __retres1 ; [L902] COND FALSE !(t14_pc == 1) [L912] __retres1 = 0 [L914] return (__retres1); [L1766] RET, EXPR is_transmit14_triggered() [L1766] tmp___13 = is_transmit14_triggered() [L1768] COND FALSE !(\read(tmp___13)) [L2003] RET activate_threads() [L2004] CALL reset_delta_events() [L1485] COND FALSE !(M_E == 1) [L1490] COND FALSE !(T1_E == 1) [L1495] COND FALSE !(T2_E == 1) [L1500] COND FALSE !(T3_E == 1) [L1505] COND FALSE !(T4_E == 1) [L1510] COND FALSE !(T5_E == 1) [L1515] COND FALSE !(T6_E == 1) [L1520] COND FALSE !(T7_E == 1) [L1525] COND FALSE !(T8_E == 1) [L1530] COND FALSE !(T9_E == 1) [L1535] COND FALSE !(T10_E == 1) [L1540] COND FALSE !(T11_E == 1) [L1545] COND FALSE !(T12_E == 1) [L1550] COND FALSE !(T13_E == 1) [L1555] COND FALSE !(T14_E == 1) [L1560] COND FALSE !(E_1 == 1) [L1565] COND FALSE !(E_2 == 1) [L1570] COND FALSE !(E_3 == 1) [L1575] COND FALSE !(E_4 == 1) [L1580] COND FALSE !(E_5 == 1) [L1585] COND FALSE !(E_6 == 1) [L1590] COND FALSE !(E_7 == 1) [L1595] COND FALSE !(E_8 == 1) [L1600] COND FALSE !(E_9 == 1) [L1605] COND FALSE !(E_10 == 1) [L1610] COND FALSE !(E_11 == 1) [L1615] COND FALSE !(E_12 == 1) [L1620] COND FALSE !(E_13 == 1) [L1625] COND FALSE !(E_14 == 1) [L2004] RET reset_delta_events() [L2007] COND TRUE 1 [L2010] kernel_st = 1 [L2011] CALL eval() [L1096] int tmp ; [L1100] COND TRUE 1 [L1103] CALL, EXPR exists_runnable_thread() [L1009] int __retres1 ; [L1012] COND TRUE m_st == 0 [L1013] __retres1 = 1 [L1091] return (__retres1); [L1103] RET, EXPR exists_runnable_thread() [L1103] tmp = exists_runnable_thread() [L1105] COND TRUE \read(tmp) [L1110] COND TRUE m_st == 0 [L1111] int tmp_ndt_1; [L1112] tmp_ndt_1 = __VERIFIER_nondet_int() [L1113] COND FALSE !(\read(tmp_ndt_1)) [L1124] COND TRUE t1_st == 0 [L1125] int tmp_ndt_2; [L1126] tmp_ndt_2 = __VERIFIER_nondet_int() [L1127] COND FALSE !(\read(tmp_ndt_2)) [L1133] CALL error() [L11] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 926 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 141.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 124.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6983 SDtfs, 40781 SDslu, 1696 SDs, 0 SdLazy, 32577 SolverSat, 5587 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 83.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 593 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 23.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1841occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 6205 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...