/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:54:09,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:54:09,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:54:09,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 22:54:09,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 22:54:09,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 22:54:09,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 22:54:09,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 22:54:09,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 22:54:09,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 22:54:09,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 22:54:09,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 22:54:09,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 22:54:09,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 22:54:09,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 22:54:09,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 22:54:09,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 22:54:09,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 22:54:09,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 22:54:09,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 22:54:09,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 22:54:09,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 22:54:09,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 22:54:09,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 22:54:09,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-06 22:54:09,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-06 22:54:09,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-06 22:54:09,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-06 22:54:09,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-06 22:54:09,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-06 22:54:09,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 22:54:09,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 22:54:09,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 22:54:09,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 22:54:09,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 22:54:09,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 22:54:09,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 22:54:09,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 22:54:09,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:54:09,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:54:09,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:54:09,915 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-06 22:54:09,950 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:54:09,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:54:09,952 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:54:09,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:54:09,953 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:54:09,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:54:09,954 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:54:09,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:54:09,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:54:09,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:54:09,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:54:09,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:54:09,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:54:09,955 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:54:09,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:54:09,956 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:54:09,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:54:09,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:54:09,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:54:09,956 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:54:09,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:54:09,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:54:09,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:54:09,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:54:09,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:54:09,958 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:54:09,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:54:09,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:54:09,959 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:54:09,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:54:10,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:54:10,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:54:10,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:54:10,473 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:54:10,474 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:54:10,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-11-06 22:54:10,572 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7b85a3b/f49c61ee94c743d2ada509a4515f725a/FLAG55530397a [2020-11-06 22:54:11,377 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:54:11,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-11-06 22:54:11,414 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7b85a3b/f49c61ee94c743d2ada509a4515f725a/FLAG55530397a [2020-11-06 22:54:11,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7b85a3b/f49c61ee94c743d2ada509a4515f725a [2020-11-06 22:54:11,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:54:11,671 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:54:11,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:54:11,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:54:11,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:54:11,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:11" (1/1) ... [2020-11-06 22:54:11,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59405cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:11, skipping insertion in model container [2020-11-06 22:54:11,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:11" (1/1) ... [2020-11-06 22:54:11,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:54:11,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:54:12,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:54:12,118 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:54:12,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:54:12,271 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:54:12,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:12 WrapperNode [2020-11-06 22:54:12,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:54:12,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:54:12,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:54:12,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:54:12,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:12" (1/1) ... [2020-11-06 22:54:12,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:12" (1/1) ... [2020-11-06 22:54:12,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:12" (1/1) ... [2020-11-06 22:54:12,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:12" (1/1) ... [2020-11-06 22:54:12,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:12" (1/1) ... [2020-11-06 22:54:12,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:12" (1/1) ... [2020-11-06 22:54:12,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:12" (1/1) ... [2020-11-06 22:54:12,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:54:12,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:54:12,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:54:12,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:54:12,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:54:12,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:54:12,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:54:12,536 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:54:12,536 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-11-06 22:54:12,536 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-11-06 22:54:12,536 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-11-06 22:54:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-11-06 22:54:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-11-06 22:54:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-11-06 22:54:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-11-06 22:54:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-11-06 22:54:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-11-06 22:54:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-11-06 22:54:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-11-06 22:54:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-11-06 22:54:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-11-06 22:54:12,539 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-11-06 22:54:12,539 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-11-06 22:54:12,539 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-11-06 22:54:12,539 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-11-06 22:54:12,539 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-11-06 22:54:12,540 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-11-06 22:54:12,540 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-11-06 22:54:12,540 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-11-06 22:54:12,540 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-11-06 22:54:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-11-06 22:54:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-11-06 22:54:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-11-06 22:54:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-11-06 22:54:12,542 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-11-06 22:54:12,542 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-11-06 22:54:12,542 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-11-06 22:54:12,542 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-11-06 22:54:12,543 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-11-06 22:54:12,543 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-11-06 22:54:12,543 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-11-06 22:54:12,543 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-11-06 22:54:12,544 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-11-06 22:54:12,544 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-11-06 22:54:12,544 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-11-06 22:54:12,544 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-11-06 22:54:12,545 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-11-06 22:54:12,545 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-11-06 22:54:12,545 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-11-06 22:54:12,545 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-11-06 22:54:12,545 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:54:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:54:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:54:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:54:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:54:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 22:54:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-11-06 22:54:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-11-06 22:54:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-11-06 22:54:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-11-06 22:54:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-11-06 22:54:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-11-06 22:54:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-11-06 22:54:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-11-06 22:54:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-11-06 22:54:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-11-06 22:54:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-11-06 22:54:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-11-06 22:54:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-11-06 22:54:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-11-06 22:54:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-11-06 22:54:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-11-06 22:54:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-11-06 22:54:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-11-06 22:54:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-11-06 22:54:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-11-06 22:54:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-11-06 22:54:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-11-06 22:54:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-11-06 22:54:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-11-06 22:54:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-11-06 22:54:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-11-06 22:54:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-11-06 22:54:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-11-06 22:54:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-11-06 22:54:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-11-06 22:54:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-11-06 22:54:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-11-06 22:54:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-11-06 22:54:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-11-06 22:54:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-11-06 22:54:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-11-06 22:54:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-11-06 22:54:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-11-06 22:54:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-11-06 22:54:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-11-06 22:54:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-11-06 22:54:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-11-06 22:54:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:54:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:54:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:54:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:54:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:54:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:54:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:54:14,141 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:54:14,141 INFO L298 CfgBuilder]: Removed 17 assume(true) statements. [2020-11-06 22:54:14,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:14 BoogieIcfgContainer [2020-11-06 22:54:14,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:54:14,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:54:14,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:54:14,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:54:14,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:54:11" (1/3) ... [2020-11-06 22:54:14,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4365977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:14, skipping insertion in model container [2020-11-06 22:54:14,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:12" (2/3) ... [2020-11-06 22:54:14,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4365977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:14, skipping insertion in model container [2020-11-06 22:54:14,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:14" (3/3) ... [2020-11-06 22:54:14,156 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2020-11-06 22:54:14,174 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:54:14,179 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:54:14,194 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:54:14,230 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:54:14,231 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:54:14,231 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:54:14,231 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:54:14,231 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:54:14,232 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:54:14,232 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:54:14,232 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:54:14,267 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states. [2020-11-06 22:54:14,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-06 22:54:14,289 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:54:14,290 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] [2020-11-06 22:54:14,291 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:54:14,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:54:14,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1049535472, now seen corresponding path program 1 times [2020-11-06 22:54:14,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:54:14,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491768301] [2020-11-06 22:54:14,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:54:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,422 WARN L194 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-06 22:54:15,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:54:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:54:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:54:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-06 22:54:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-11-06 22:54:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-11-06 22:54:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:54:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-06 22:54:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:54:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-06 22:54:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-06 22:54:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-06 22:54:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-06 22:54:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-06 22:54:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-11-06 22:54:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-06 22:54:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 22:54:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-11-06 22:54:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 22:54:15,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-11-06 22:54:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-06 22:54:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:15,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-11-06 22:54:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:16,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:54:16,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491768301] [2020-11-06 22:54:16,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:54:16,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-06 22:54:16,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399268139] [2020-11-06 22:54:16,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:54:16,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:54:16,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:54:16,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:54:16,184 INFO L87 Difference]: Start difference. First operand 503 states. Second operand 8 states. [2020-11-06 22:54:16,806 WARN L194 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-11-06 22:54:17,029 WARN L194 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-11-06 22:54:17,632 WARN L194 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-11-06 22:54:17,902 WARN L194 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-06 22:54:18,361 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-11-06 22:54:28,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:54:28,507 INFO L93 Difference]: Finished difference Result 1304 states and 2142 transitions. [2020-11-06 22:54:28,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-06 22:54:28,511 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 241 [2020-11-06 22:54:28,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:54:28,552 INFO L225 Difference]: With dead ends: 1304 [2020-11-06 22:54:28,552 INFO L226 Difference]: Without dead ends: 811 [2020-11-06 22:54:28,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-11-06 22:54:28,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2020-11-06 22:54:28,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 491. [2020-11-06 22:54:28,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-11-06 22:54:28,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 719 transitions. [2020-11-06 22:54:28,783 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 719 transitions. Word has length 241 [2020-11-06 22:54:28,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:54:28,784 INFO L481 AbstractCegarLoop]: Abstraction has 491 states and 719 transitions. [2020-11-06 22:54:28,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:54:28,784 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 719 transitions. [2020-11-06 22:54:28,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-06 22:54:28,791 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:54:28,791 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] [2020-11-06 22:54:28,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:54:28,792 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:54:28,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:54:28,793 INFO L82 PathProgramCache]: Analyzing trace with hash -137441870, now seen corresponding path program 1 times [2020-11-06 22:54:28,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:54:28,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737126875] [2020-11-06 22:54:28,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:54:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,424 WARN L194 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-06 22:54:29,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:54:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:54:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:54:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-06 22:54:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,732 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-06 22:54:29,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-11-06 22:54:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-11-06 22:54:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:54:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-06 22:54:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:54:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-06 22:54:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-06 22:54:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-06 22:54:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-06 22:54:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-06 22:54:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-11-06 22:54:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-06 22:54:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 22:54:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-11-06 22:54:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 22:54:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-11-06 22:54:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-06 22:54:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:29,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-11-06 22:54:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:30,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:54:30,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737126875] [2020-11-06 22:54:30,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:54:30,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-06 22:54:30,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988640743] [2020-11-06 22:54:30,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-06 22:54:30,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:54:30,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-06 22:54:30,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:54:30,063 INFO L87 Difference]: Start difference. First operand 491 states and 719 transitions. Second operand 9 states. [2020-11-06 22:54:30,622 WARN L194 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-11-06 22:54:30,824 WARN L194 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-06 22:54:31,085 WARN L194 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-06 22:54:40,818 WARN L194 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-11-06 22:54:41,087 WARN L194 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-11-06 22:54:48,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:54:48,443 INFO L93 Difference]: Finished difference Result 1994 states and 3101 transitions. [2020-11-06 22:54:48,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-06 22:54:48,444 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 241 [2020-11-06 22:54:48,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:54:48,462 INFO L225 Difference]: With dead ends: 1994 [2020-11-06 22:54:48,463 INFO L226 Difference]: Without dead ends: 1534 [2020-11-06 22:54:48,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-11-06 22:54:48,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2020-11-06 22:54:48,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 966. [2020-11-06 22:54:48,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 966 states. [2020-11-06 22:54:48,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1428 transitions. [2020-11-06 22:54:48,760 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1428 transitions. Word has length 241 [2020-11-06 22:54:48,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:54:48,760 INFO L481 AbstractCegarLoop]: Abstraction has 966 states and 1428 transitions. [2020-11-06 22:54:48,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-06 22:54:48,761 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1428 transitions. [2020-11-06 22:54:48,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-06 22:54:48,771 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:54:48,772 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] [2020-11-06 22:54:48,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 22:54:48,772 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:54:48,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:54:48,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1495512401, now seen corresponding path program 1 times [2020-11-06 22:54:48,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:54:48,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403499312] [2020-11-06 22:54:48,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:54:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,358 WARN L194 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-06 22:54:49,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:54:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:54:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:54:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-06 22:54:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-11-06 22:54:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-11-06 22:54:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:54:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-06 22:54:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:54:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-06 22:54:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-06 22:54:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-06 22:54:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-06 22:54:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-06 22:54:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-11-06 22:54:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-06 22:54:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 22:54:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-11-06 22:54:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 22:54:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-11-06 22:54:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-06 22:54:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-11-06 22:54:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:54:49,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:54:49,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403499312] [2020-11-06 22:54:49,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:54:49,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-06 22:54:49,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125354092] [2020-11-06 22:54:49,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-06 22:54:49,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:54:49,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-06 22:54:49,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:54:49,903 INFO L87 Difference]: Start difference. First operand 966 states and 1428 transitions. Second operand 9 states. [2020-11-06 22:54:50,544 WARN L194 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-11-06 22:54:50,781 WARN L194 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-06 22:54:51,048 WARN L194 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-06 22:55:00,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:55:00,963 INFO L93 Difference]: Finished difference Result 2457 states and 3747 transitions. [2020-11-06 22:55:00,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-06 22:55:00,964 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 241 [2020-11-06 22:55:00,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:55:00,976 INFO L225 Difference]: With dead ends: 2457 [2020-11-06 22:55:00,977 INFO L226 Difference]: Without dead ends: 1522 [2020-11-06 22:55:00,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-11-06 22:55:00,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2020-11-06 22:55:01,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 966. [2020-11-06 22:55:01,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 966 states. [2020-11-06 22:55:01,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1421 transitions. [2020-11-06 22:55:01,215 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1421 transitions. Word has length 241 [2020-11-06 22:55:01,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:55:01,216 INFO L481 AbstractCegarLoop]: Abstraction has 966 states and 1421 transitions. [2020-11-06 22:55:01,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-06 22:55:01,216 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1421 transitions. [2020-11-06 22:55:01,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-06 22:55:01,221 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:55:01,221 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] [2020-11-06 22:55:01,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 22:55:01,222 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:55:01,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:55:01,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1725447091, now seen corresponding path program 1 times [2020-11-06 22:55:01,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:55:01,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845706322] [2020-11-06 22:55:01,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:55:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:01,749 WARN L194 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-06 22:55:01,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:55:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:01,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:55:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:01,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:55:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:01,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-06 22:55:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-11-06 22:55:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-11-06 22:55:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:55:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-06 22:55:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:55:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-06 22:55:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-06 22:55:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-06 22:55:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-06 22:55:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-06 22:55:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-11-06 22:55:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-06 22:55:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 22:55:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-11-06 22:55:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 22:55:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-11-06 22:55:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-06 22:55:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-11-06 22:55:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:02,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:55:02,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845706322] [2020-11-06 22:55:02,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:55:02,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 22:55:02,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982606965] [2020-11-06 22:55:02,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:55:02,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:55:02,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:55:02,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:55:02,356 INFO L87 Difference]: Start difference. First operand 966 states and 1421 transitions. Second operand 10 states. [2020-11-06 22:55:02,876 WARN L194 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2020-11-06 22:55:03,073 WARN L194 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-11-06 22:55:03,362 WARN L194 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-11-06 22:55:04,564 WARN L194 SmtUtils]: Spent 951.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 242 [2020-11-06 22:55:05,734 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-11-06 22:55:09,466 WARN L194 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-11-06 22:55:12,171 WARN L194 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 241 [2020-11-06 22:55:12,996 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-06 22:55:26,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:55:26,691 INFO L93 Difference]: Finished difference Result 4080 states and 6278 transitions. [2020-11-06 22:55:26,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-06 22:55:26,691 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-11-06 22:55:26,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:55:26,713 INFO L225 Difference]: With dead ends: 4080 [2020-11-06 22:55:26,713 INFO L226 Difference]: Without dead ends: 3145 [2020-11-06 22:55:26,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-11-06 22:55:26,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3145 states. [2020-11-06 22:55:27,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3145 to 2001. [2020-11-06 22:55:27,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2001 states. [2020-11-06 22:55:27,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2994 transitions. [2020-11-06 22:55:27,163 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2994 transitions. Word has length 241 [2020-11-06 22:55:27,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:55:27,163 INFO L481 AbstractCegarLoop]: Abstraction has 2001 states and 2994 transitions. [2020-11-06 22:55:27,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:55:27,164 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2994 transitions. [2020-11-06 22:55:27,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-06 22:55:27,168 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:55:27,169 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] [2020-11-06 22:55:27,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-06 22:55:27,169 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:55:27,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:55:27,170 INFO L82 PathProgramCache]: Analyzing trace with hash 870907633, now seen corresponding path program 1 times [2020-11-06 22:55:27,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:55:27,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437251267] [2020-11-06 22:55:27,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:55:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:27,740 WARN L194 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-06 22:55:27,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:55:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:27,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:55:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:27,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:55:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:27,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-06 22:55:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-11-06 22:55:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-11-06 22:55:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:55:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-06 22:55:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:55:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-06 22:55:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-06 22:55:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-06 22:55:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-06 22:55:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-06 22:55:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-11-06 22:55:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-06 22:55:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 22:55:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-11-06 22:55:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 22:55:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-11-06 22:55:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-06 22:55:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-11-06 22:55:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:28,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:55:28,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437251267] [2020-11-06 22:55:28,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:55:28,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 22:55:28,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670440406] [2020-11-06 22:55:28,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:55:28,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:55:28,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:55:28,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:55:28,296 INFO L87 Difference]: Start difference. First operand 2001 states and 2994 transitions. Second operand 10 states. [2020-11-06 22:55:28,902 WARN L194 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-11-06 22:55:29,104 WARN L194 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-06 22:55:29,371 WARN L194 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-06 22:55:39,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:55:39,732 INFO L93 Difference]: Finished difference Result 5049 states and 7761 transitions. [2020-11-06 22:55:39,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-06 22:55:39,733 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-11-06 22:55:39,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:55:39,754 INFO L225 Difference]: With dead ends: 5049 [2020-11-06 22:55:39,755 INFO L226 Difference]: Without dead ends: 3081 [2020-11-06 22:55:39,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-11-06 22:55:39,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3081 states. [2020-11-06 22:55:40,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3081 to 2001. [2020-11-06 22:55:40,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2001 states. [2020-11-06 22:55:40,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2976 transitions. [2020-11-06 22:55:40,203 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2976 transitions. Word has length 241 [2020-11-06 22:55:40,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:55:40,203 INFO L481 AbstractCegarLoop]: Abstraction has 2001 states and 2976 transitions. [2020-11-06 22:55:40,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:55:40,204 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2976 transitions. [2020-11-06 22:55:40,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-06 22:55:40,208 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:55:40,208 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] [2020-11-06 22:55:40,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-06 22:55:40,209 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:55:40,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:55:40,210 INFO L82 PathProgramCache]: Analyzing trace with hash 628449525, now seen corresponding path program 1 times [2020-11-06 22:55:40,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:55:40,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016443182] [2020-11-06 22:55:40,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:55:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:40,756 WARN L194 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-06 22:55:40,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:55:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:40,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:55:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:40,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:55:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:40,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-06 22:55:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-11-06 22:55:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-11-06 22:55:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:55:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-06 22:55:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:55:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-06 22:55:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-06 22:55:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-06 22:55:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-06 22:55:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-06 22:55:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-11-06 22:55:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-06 22:55:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 22:55:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-11-06 22:55:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 22:55:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-11-06 22:55:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-06 22:55:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-11-06 22:55:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:41,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:55:41,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016443182] [2020-11-06 22:55:41,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:55:41,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 22:55:41,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661303155] [2020-11-06 22:55:41,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:55:41,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:55:41,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:55:41,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:55:41,307 INFO L87 Difference]: Start difference. First operand 2001 states and 2976 transitions. Second operand 10 states. [2020-11-06 22:55:41,879 WARN L194 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-11-06 22:55:42,071 WARN L194 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-06 22:55:42,341 WARN L194 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-06 22:55:52,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:55:52,205 INFO L93 Difference]: Finished difference Result 5043 states and 7711 transitions. [2020-11-06 22:55:52,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-06 22:55:52,206 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-11-06 22:55:52,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:55:52,226 INFO L225 Difference]: With dead ends: 5043 [2020-11-06 22:55:52,227 INFO L226 Difference]: Without dead ends: 3075 [2020-11-06 22:55:52,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-11-06 22:55:52,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3075 states. [2020-11-06 22:55:52,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3075 to 2001. [2020-11-06 22:55:52,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2001 states. [2020-11-06 22:55:52,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2958 transitions. [2020-11-06 22:55:52,665 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2958 transitions. Word has length 241 [2020-11-06 22:55:52,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:55:52,666 INFO L481 AbstractCegarLoop]: Abstraction has 2001 states and 2958 transitions. [2020-11-06 22:55:52,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:55:52,666 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2958 transitions. [2020-11-06 22:55:52,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-06 22:55:52,668 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:55:52,668 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] [2020-11-06 22:55:52,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-06 22:55:52,669 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:55:52,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:55:52,670 INFO L82 PathProgramCache]: Analyzing trace with hash 2006101617, now seen corresponding path program 1 times [2020-11-06 22:55:52,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:55:52,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493835748] [2020-11-06 22:55:52,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:55:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,187 WARN L194 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-06 22:55:53,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:55:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:55:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:55:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-06 22:55:53,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-11-06 22:55:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-11-06 22:55:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:55:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-06 22:55:53,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:55:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-06 22:55:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-06 22:55:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-06 22:55:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-06 22:55:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-06 22:55:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-11-06 22:55:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-06 22:55:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 22:55:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-11-06 22:55:53,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 22:55:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-11-06 22:55:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-06 22:55:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-11-06 22:55:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:55:53,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:55:53,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493835748] [2020-11-06 22:55:53,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:55:53,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 22:55:53,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636732167] [2020-11-06 22:55:53,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:55:53,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:55:53,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:55:53,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:55:53,763 INFO L87 Difference]: Start difference. First operand 2001 states and 2958 transitions. Second operand 10 states. [2020-11-06 22:55:54,304 WARN L194 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2020-11-06 22:55:54,499 WARN L194 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-11-06 22:55:54,756 WARN L194 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-11-06 22:55:55,926 WARN L194 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 242 [2020-11-06 22:55:56,077 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-11-06 22:55:56,971 WARN L194 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-11-06 22:56:00,250 WARN L194 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-11-06 22:56:02,702 WARN L194 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 241 [2020-11-06 22:56:03,875 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-06 22:56:15,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:56:15,152 INFO L93 Difference]: Finished difference Result 8423 states and 13000 transitions. [2020-11-06 22:56:15,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-06 22:56:15,153 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-11-06 22:56:15,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:56:15,193 INFO L225 Difference]: With dead ends: 8423 [2020-11-06 22:56:15,193 INFO L226 Difference]: Without dead ends: 6455 [2020-11-06 22:56:15,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-11-06 22:56:15,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6455 states. [2020-11-06 22:56:16,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6455 to 4239. [2020-11-06 22:56:16,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4239 states. [2020-11-06 22:56:16,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4239 states to 4239 states and 6414 transitions. [2020-11-06 22:56:16,325 INFO L78 Accepts]: Start accepts. Automaton has 4239 states and 6414 transitions. Word has length 241 [2020-11-06 22:56:16,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:56:16,326 INFO L481 AbstractCegarLoop]: Abstraction has 4239 states and 6414 transitions. [2020-11-06 22:56:16,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:56:16,326 INFO L276 IsEmpty]: Start isEmpty. Operand 4239 states and 6414 transitions. [2020-11-06 22:56:16,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-06 22:56:16,330 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:56:16,330 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] [2020-11-06 22:56:16,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-06 22:56:16,331 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:56:16,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:56:16,331 INFO L82 PathProgramCache]: Analyzing trace with hash 731177971, now seen corresponding path program 1 times [2020-11-06 22:56:16,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:56:16,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641094634] [2020-11-06 22:56:16,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:56:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:16,860 WARN L194 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-06 22:56:16,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:56:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:16,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:56:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:16,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:56:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:16,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-06 22:56:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-11-06 22:56:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-11-06 22:56:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:56:17,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-06 22:56:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:56:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-06 22:56:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-06 22:56:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-06 22:56:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-06 22:56:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-06 22:56:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-11-06 22:56:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-06 22:56:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 22:56:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-11-06 22:56:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 22:56:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-11-06 22:56:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-06 22:56:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-11-06 22:56:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:17,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:56:17,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641094634] [2020-11-06 22:56:17,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:56:17,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 22:56:17,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387525137] [2020-11-06 22:56:17,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:56:17,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:56:17,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:56:17,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:56:17,316 INFO L87 Difference]: Start difference. First operand 4239 states and 6414 transitions. Second operand 10 states. [2020-11-06 22:56:17,827 WARN L194 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-11-06 22:56:18,036 WARN L194 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-06 22:56:18,282 WARN L194 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-06 22:56:28,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:56:28,621 INFO L93 Difference]: Finished difference Result 10553 states and 16347 transitions. [2020-11-06 22:56:28,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-06 22:56:28,622 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-11-06 22:56:28,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:56:28,658 INFO L225 Difference]: With dead ends: 10553 [2020-11-06 22:56:28,659 INFO L226 Difference]: Without dead ends: 6347 [2020-11-06 22:56:28,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-11-06 22:56:28,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6347 states. [2020-11-06 22:56:29,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6347 to 4239. [2020-11-06 22:56:29,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4239 states. [2020-11-06 22:56:29,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4239 states to 4239 states and 6366 transitions. [2020-11-06 22:56:29,530 INFO L78 Accepts]: Start accepts. Automaton has 4239 states and 6366 transitions. Word has length 241 [2020-11-06 22:56:29,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:56:29,531 INFO L481 AbstractCegarLoop]: Abstraction has 4239 states and 6366 transitions. [2020-11-06 22:56:29,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:56:29,531 INFO L276 IsEmpty]: Start isEmpty. Operand 4239 states and 6366 transitions. [2020-11-06 22:56:29,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-06 22:56:29,534 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:56:29,534 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] [2020-11-06 22:56:29,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-06 22:56:29,535 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:56:29,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:56:29,535 INFO L82 PathProgramCache]: Analyzing trace with hash 106913903, now seen corresponding path program 1 times [2020-11-06 22:56:29,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:56:29,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538245430] [2020-11-06 22:56:29,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:56:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,034 WARN L194 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-06 22:56:30,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:56:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:56:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:56:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-06 22:56:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-11-06 22:56:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-11-06 22:56:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:56:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-06 22:56:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:56:30,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-06 22:56:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-06 22:56:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-06 22:56:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-06 22:56:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-06 22:56:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-11-06 22:56:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-06 22:56:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 22:56:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-11-06 22:56:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 22:56:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-11-06 22:56:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-06 22:56:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-11-06 22:56:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:30,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:56:30,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538245430] [2020-11-06 22:56:30,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:56:30,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 22:56:30,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355156913] [2020-11-06 22:56:30,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:56:30,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:56:30,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:56:30,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:56:30,512 INFO L87 Difference]: Start difference. First operand 4239 states and 6366 transitions. Second operand 10 states. [2020-11-06 22:56:31,108 WARN L194 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2020-11-06 22:56:31,318 WARN L194 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-11-06 22:56:31,621 WARN L194 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-11-06 22:56:32,244 WARN L194 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-11-06 22:56:32,397 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-11-06 22:56:32,971 WARN L194 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-11-06 22:56:35,888 WARN L194 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-11-06 22:56:38,080 WARN L194 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-11-06 22:56:50,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:56:50,412 INFO L93 Difference]: Finished difference Result 17729 states and 27688 transitions. [2020-11-06 22:56:50,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-06 22:56:50,413 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-11-06 22:56:50,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:56:50,482 INFO L225 Difference]: With dead ends: 17729 [2020-11-06 22:56:50,482 INFO L226 Difference]: Without dead ends: 13523 [2020-11-06 22:56:50,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-11-06 22:56:50,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13523 states. [2020-11-06 22:56:52,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13523 to 9159. [2020-11-06 22:56:52,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9159 states. [2020-11-06 22:56:52,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9159 states to 9159 states and 14162 transitions. [2020-11-06 22:56:52,513 INFO L78 Accepts]: Start accepts. Automaton has 9159 states and 14162 transitions. Word has length 241 [2020-11-06 22:56:52,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:56:52,513 INFO L481 AbstractCegarLoop]: Abstraction has 9159 states and 14162 transitions. [2020-11-06 22:56:52,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:56:52,513 INFO L276 IsEmpty]: Start isEmpty. Operand 9159 states and 14162 transitions. [2020-11-06 22:56:52,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-06 22:56:52,517 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:56:52,517 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] [2020-11-06 22:56:52,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-06 22:56:52,518 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:56:52,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:56:52,518 INFO L82 PathProgramCache]: Analyzing trace with hash 320530989, now seen corresponding path program 1 times [2020-11-06 22:56:52,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:56:52,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845018132] [2020-11-06 22:56:52,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:56:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,019 WARN L194 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-06 22:56:53,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:56:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:56:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:56:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-06 22:56:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-11-06 22:56:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-11-06 22:56:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:56:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-06 22:56:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:56:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-06 22:56:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-06 22:56:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-06 22:56:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-06 22:56:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-06 22:56:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-11-06 22:56:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-06 22:56:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 22:56:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-11-06 22:56:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 22:56:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-11-06 22:56:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-06 22:56:53,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-11-06 22:56:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:56:53,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:56:53,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845018132] [2020-11-06 22:56:53,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:56:53,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 22:56:53,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755869427] [2020-11-06 22:56:53,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:56:53,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:56:53,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:56:53,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:56:53,615 INFO L87 Difference]: Start difference. First operand 9159 states and 14162 transitions. Second operand 10 states. [2020-11-06 22:56:54,128 WARN L194 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-11-06 22:56:54,322 WARN L194 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-06 22:56:54,576 WARN L194 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-06 22:57:06,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:57:06,094 INFO L93 Difference]: Finished difference Result 22481 states and 35509 transitions. [2020-11-06 22:57:06,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-06 22:57:06,095 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-11-06 22:57:06,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:57:06,165 INFO L225 Difference]: With dead ends: 22481 [2020-11-06 22:57:06,165 INFO L226 Difference]: Without dead ends: 13355 [2020-11-06 22:57:06,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-11-06 22:57:06,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13355 states. [2020-11-06 22:57:08,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13355 to 9159. [2020-11-06 22:57:08,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9159 states. [2020-11-06 22:57:08,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9159 states to 9159 states and 14030 transitions. [2020-11-06 22:57:08,500 INFO L78 Accepts]: Start accepts. Automaton has 9159 states and 14030 transitions. Word has length 241 [2020-11-06 22:57:08,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:57:08,501 INFO L481 AbstractCegarLoop]: Abstraction has 9159 states and 14030 transitions. [2020-11-06 22:57:08,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:57:08,501 INFO L276 IsEmpty]: Start isEmpty. Operand 9159 states and 14030 transitions. [2020-11-06 22:57:08,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-06 22:57:08,504 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:57:08,505 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] [2020-11-06 22:57:08,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-06 22:57:08,505 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:57:08,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:57:08,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1240850639, now seen corresponding path program 1 times [2020-11-06 22:57:08,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:57:08,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551541748] [2020-11-06 22:57:08,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:57:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,008 WARN L194 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-06 22:57:09,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:57:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:57:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:57:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-06 22:57:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-11-06 22:57:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-11-06 22:57:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:57:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-06 22:57:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:57:09,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-06 22:57:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-06 22:57:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-06 22:57:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-06 22:57:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-06 22:57:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-11-06 22:57:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-06 22:57:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 22:57:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-11-06 22:57:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 22:57:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-11-06 22:57:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-06 22:57:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-11-06 22:57:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:09,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:57:09,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551541748] [2020-11-06 22:57:09,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:57:09,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 22:57:09,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806171318] [2020-11-06 22:57:09,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:57:09,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:57:09,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:57:09,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:57:09,420 INFO L87 Difference]: Start difference. First operand 9159 states and 14030 transitions. Second operand 10 states. [2020-11-06 22:57:09,902 WARN L194 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2020-11-06 22:57:10,083 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-11-06 22:57:10,334 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-11-06 22:57:11,524 WARN L194 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 242 [2020-11-06 22:57:11,679 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-11-06 22:57:12,532 WARN L194 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-11-06 22:57:15,943 WARN L194 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-11-06 22:57:18,903 WARN L194 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 241 [2020-11-06 22:57:36,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:57:36,004 INFO L93 Difference]: Finished difference Result 38017 states and 60400 transitions. [2020-11-06 22:57:36,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-06 22:57:36,004 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-11-06 22:57:36,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:57:36,120 INFO L225 Difference]: With dead ends: 38017 [2020-11-06 22:57:36,120 INFO L226 Difference]: Without dead ends: 28891 [2020-11-06 22:57:36,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-11-06 22:57:36,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28891 states. [2020-11-06 22:57:39,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28891 to 20223. [2020-11-06 22:57:39,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20223 states. [2020-11-06 22:57:40,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20223 states to 20223 states and 32194 transitions. [2020-11-06 22:57:40,054 INFO L78 Accepts]: Start accepts. Automaton has 20223 states and 32194 transitions. Word has length 241 [2020-11-06 22:57:40,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:57:40,055 INFO L481 AbstractCegarLoop]: Abstraction has 20223 states and 32194 transitions. [2020-11-06 22:57:40,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:57:40,055 INFO L276 IsEmpty]: Start isEmpty. Operand 20223 states and 32194 transitions. [2020-11-06 22:57:40,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-06 22:57:40,060 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:57:40,061 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] [2020-11-06 22:57:40,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-06 22:57:40,061 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:57:40,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:57:40,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1123614831, now seen corresponding path program 1 times [2020-11-06 22:57:40,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:57:40,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183936064] [2020-11-06 22:57:40,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:57:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,549 WARN L194 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-06 22:57:40,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:57:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:57:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:57:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-06 22:57:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-11-06 22:57:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-11-06 22:57:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:57:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-06 22:57:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:57:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-06 22:57:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-06 22:57:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-06 22:57:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-06 22:57:40,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-06 22:57:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-11-06 22:57:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-06 22:57:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 22:57:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-11-06 22:57:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 22:57:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-11-06 22:57:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-06 22:57:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-11-06 22:57:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:57:40,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:57:40,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183936064] [2020-11-06 22:57:40,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:57:40,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 22:57:40,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730833633] [2020-11-06 22:57:40,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:57:40,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:57:40,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:57:40,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:57:40,988 INFO L87 Difference]: Start difference. First operand 20223 states and 32194 transitions. Second operand 10 states. [2020-11-06 22:57:41,459 WARN L194 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2020-11-06 22:57:41,640 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-11-06 22:57:42,065 WARN L194 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-11-06 22:57:43,227 WARN L194 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 242 [2020-11-06 22:57:43,387 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-11-06 22:57:44,238 WARN L194 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-11-06 22:57:47,633 WARN L194 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-11-06 22:57:50,976 WARN L194 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 241 [2020-11-06 22:58:14,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:58:14,087 INFO L93 Difference]: Finished difference Result 83381 states and 137356 transitions. [2020-11-06 22:58:14,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-06 22:58:14,088 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-11-06 22:58:14,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:58:14,573 INFO L225 Difference]: With dead ends: 83381 [2020-11-06 22:58:14,573 INFO L226 Difference]: Without dead ends: 63191 [2020-11-06 22:58:14,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-11-06 22:58:14,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63191 states. [2020-11-06 22:58:23,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63191 to 45915. [2020-11-06 22:58:23,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45915 states. [2020-11-06 22:58:23,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45915 states to 45915 states and 76906 transitions. [2020-11-06 22:58:23,448 INFO L78 Accepts]: Start accepts. Automaton has 45915 states and 76906 transitions. Word has length 241 [2020-11-06 22:58:23,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:58:23,449 INFO L481 AbstractCegarLoop]: Abstraction has 45915 states and 76906 transitions. [2020-11-06 22:58:23,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:58:23,449 INFO L276 IsEmpty]: Start isEmpty. Operand 45915 states and 76906 transitions. [2020-11-06 22:58:23,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-06 22:58:23,458 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:58:23,458 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] [2020-11-06 22:58:23,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-06 22:58:23,459 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:58:23,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:58:23,459 INFO L82 PathProgramCache]: Analyzing trace with hash -601227407, now seen corresponding path program 1 times [2020-11-06 22:58:23,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:58:23,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838524915] [2020-11-06 22:58:23,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:58:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:23,960 WARN L194 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-06 22:58:23,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:58:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:58:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:58:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-06 22:58:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-11-06 22:58:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-11-06 22:58:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:58:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-06 22:58:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:58:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-06 22:58:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-06 22:58:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-06 22:58:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-06 22:58:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-06 22:58:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-11-06 22:58:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-06 22:58:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 22:58:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-11-06 22:58:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 22:58:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-11-06 22:58:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-06 22:58:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-11-06 22:58:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:58:24,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838524915] [2020-11-06 22:58:24,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:58:24,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 22:58:24,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542989644] [2020-11-06 22:58:24,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:58:24,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:58:24,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:58:24,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:58:24,571 INFO L87 Difference]: Start difference. First operand 45915 states and 76906 transitions. Second operand 10 states. [2020-11-06 22:58:25,204 WARN L194 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-11-06 22:58:25,382 WARN L194 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-06 22:58:25,631 WARN L194 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-06 22:58:45,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:58:45,562 INFO L93 Difference]: Finished difference Result 108521 states and 186221 transitions. [2020-11-06 22:58:45,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-06 22:58:45,562 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-11-06 22:58:45,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:58:45,978 INFO L225 Difference]: With dead ends: 108521 [2020-11-06 22:58:45,979 INFO L226 Difference]: Without dead ends: 62639 [2020-11-06 22:58:46,131 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-11-06 22:58:46,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62639 states. [2020-11-06 22:58:54,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62639 to 45915. [2020-11-06 22:58:54,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45915 states. [2020-11-06 22:58:54,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45915 states to 45915 states and 75838 transitions. [2020-11-06 22:58:54,569 INFO L78 Accepts]: Start accepts. Automaton has 45915 states and 75838 transitions. Word has length 241 [2020-11-06 22:58:54,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:58:54,570 INFO L481 AbstractCegarLoop]: Abstraction has 45915 states and 75838 transitions. [2020-11-06 22:58:54,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:58:54,570 INFO L276 IsEmpty]: Start isEmpty. Operand 45915 states and 75838 transitions. [2020-11-06 22:58:54,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-06 22:58:54,577 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:58:54,578 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] [2020-11-06 22:58:54,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-06 22:58:54,578 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:58:54,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:58:54,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1304070381, now seen corresponding path program 1 times [2020-11-06 22:58:54,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:58:54,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196585771] [2020-11-06 22:58:54,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:58:54,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,248 WARN L194 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-06 22:58:55,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:58:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:58:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:58:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-06 22:58:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-11-06 22:58:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-11-06 22:58:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:58:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-06 22:58:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:58:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-06 22:58:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-06 22:58:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-06 22:58:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-06 22:58:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-06 22:58:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-11-06 22:58:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-06 22:58:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 22:58:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-11-06 22:58:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 22:58:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-11-06 22:58:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-06 22:58:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-11-06 22:58:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:58:55,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:58:55,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196585771] [2020-11-06 22:58:55,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:58:55,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 22:58:55,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165997787] [2020-11-06 22:58:55,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:58:55,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:58:55,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:58:55,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:58:55,651 INFO L87 Difference]: Start difference. First operand 45915 states and 75838 transitions. Second operand 10 states. [2020-11-06 22:58:56,135 WARN L194 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2020-11-06 22:58:56,321 WARN L194 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-11-06 22:58:56,576 WARN L194 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-11-06 22:58:57,901 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 243 DAG size of output: 242 [2020-11-06 22:58:58,074 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-11-06 22:58:59,003 WARN L194 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-11-06 22:59:03,025 WARN L194 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-11-06 22:59:07,291 WARN L194 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 241 [2020-11-06 22:59:07,961 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-06 22:59:40,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:59:40,688 INFO L93 Difference]: Finished difference Result 186649 states and 319816 transitions. [2020-11-06 22:59:40,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-06 22:59:40,688 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-11-06 22:59:40,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:59:41,361 INFO L225 Difference]: With dead ends: 186649 [2020-11-06 22:59:41,362 INFO L226 Difference]: Without dead ends: 140767 [2020-11-06 22:59:41,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-11-06 22:59:41,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140767 states. [2020-11-06 22:59:57,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140767 to 106371. [2020-11-06 22:59:57,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106371 states. [2020-11-06 22:59:57,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106371 states to 106371 states and 188042 transitions. [2020-11-06 22:59:57,907 INFO L78 Accepts]: Start accepts. Automaton has 106371 states and 188042 transitions. Word has length 241 [2020-11-06 22:59:57,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:59:57,907 INFO L481 AbstractCegarLoop]: Abstraction has 106371 states and 188042 transitions. [2020-11-06 22:59:57,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:59:57,907 INFO L276 IsEmpty]: Start isEmpty. Operand 106371 states and 188042 transitions. [2020-11-06 22:59:57,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-06 22:59:57,919 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:59:57,919 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] [2020-11-06 22:59:57,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-06 22:59:57,920 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:59:57,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:59:57,920 INFO L82 PathProgramCache]: Analyzing trace with hash -977051537, now seen corresponding path program 1 times [2020-11-06 22:59:57,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:59:57,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264944051] [2020-11-06 22:59:57,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:59:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:58,749 WARN L194 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-11-06 22:59:58,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:59:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:58,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:59:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:58,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 22:59:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:58,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-06 22:59:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:58,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-11-06 22:59:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:59,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-11-06 22:59:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:59,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 22:59:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:59,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-06 22:59:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:59,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:59:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:59,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-06 22:59:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:59,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-06 22:59:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:59,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-06 22:59:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:59,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-06 22:59:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:59,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-06 22:59:59,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:59,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-11-06 22:59:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:59,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-06 22:59:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:59,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 22:59:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:59,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-11-06 22:59:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:59,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 22:59:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:59,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-11-06 22:59:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:59,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-06 22:59:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:59,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-11-06 22:59:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:59:59,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:59:59,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264944051] [2020-11-06 22:59:59,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:59:59,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 22:59:59,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072492862] [2020-11-06 22:59:59,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:59:59,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:59:59,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:59:59,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:59:59,228 INFO L87 Difference]: Start difference. First operand 106371 states and 188042 transitions. Second operand 10 states. [2020-11-06 22:59:59,822 WARN L194 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2020-11-06 23:00:00,019 WARN L194 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-11-06 23:00:00,284 WARN L194 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-11-06 23:00:00,944 WARN L194 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-11-06 23:00:01,095 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-11-06 23:00:01,669 WARN L194 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-11-06 23:00:05,507 WARN L194 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-11-06 23:00:07,951 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-06 23:00:11,179 WARN L194 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-11-06 23:01:11,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:01:11,475 INFO L93 Difference]: Finished difference Result 433494 states and 801582 transitions. [2020-11-06 23:01:11,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-06 23:01:11,475 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-11-06 23:01:11,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:01:13,511 INFO L225 Difference]: With dead ends: 433494 [2020-11-06 23:01:13,511 INFO L226 Difference]: Without dead ends: 327156 [2020-11-06 23:01:14,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-11-06 23:01:14,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327156 states.