/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 19:51:36,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:51:36,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:51:36,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 19:51:36,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 19:51:36,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 19:51:36,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 19:51:36,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 19:51:36,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 19:51:36,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 19:51:36,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 19:51:36,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 19:51:36,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:51:36,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:51:36,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:51:36,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:51:36,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:51:36,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:51:36,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:51:36,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:51:36,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:51:36,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:51:36,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:51:36,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:51:36,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 19:51:36,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 19:51:36,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 19:51:36,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 19:51:36,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 19:51:36,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 19:51:36,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 19:51:36,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 19:51:36,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 19:51:36,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 19:51:36,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 19:51:36,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 19:51:36,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 19:51:36,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 19:51:36,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 19:51:36,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 19:51:36,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 19:51:36,913 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 19:51:36,931 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:51:36,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:51:36,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:51:36,933 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:51:36,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:51:36,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:51:36,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:51:36,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:51:36,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:51:36,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:51:36,935 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:51:36,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:51:36,936 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:51:36,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:51:36,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:51:36,936 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:51:36,937 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:51:36,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:51:36,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:51:36,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:51:36,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:51:36,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:51:36,938 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:51:37,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:51:37,297 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:51:37,301 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:51:37,303 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:51:37,304 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:51:37,304 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.02.cil.c [2020-08-22 19:51:37,378 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbbfa43e9/d1f49e3b3bf944d89b54b89b1e257a27/FLAGf95de9216 [2020-08-22 19:51:37,848 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:51:37,849 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.02.cil.c [2020-08-22 19:51:37,863 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbbfa43e9/d1f49e3b3bf944d89b54b89b1e257a27/FLAGf95de9216 [2020-08-22 19:51:38,233 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbbfa43e9/d1f49e3b3bf944d89b54b89b1e257a27 [2020-08-22 19:51:38,242 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:51:38,244 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:51:38,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:51:38,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:51:38,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:51:38,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:51:38" (1/1) ... [2020-08-22 19:51:38,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1db2c1e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:38, skipping insertion in model container [2020-08-22 19:51:38,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:51:38" (1/1) ... [2020-08-22 19:51:38,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:51:38,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:51:38,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:51:38,564 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:51:38,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:51:38,782 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:51:38,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:38 WrapperNode [2020-08-22 19:51:38,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:51:38,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:51:38,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:51:38,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:51:38,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:38" (1/1) ... [2020-08-22 19:51:38,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:38" (1/1) ... [2020-08-22 19:51:38,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:38" (1/1) ... [2020-08-22 19:51:38,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:38" (1/1) ... [2020-08-22 19:51:38,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:38" (1/1) ... [2020-08-22 19:51:38,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:38" (1/1) ... [2020-08-22 19:51:38,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:38" (1/1) ... [2020-08-22 19:51:38,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:51:38,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:51:38,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:51:38,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:51:38,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:38" (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 [2020-08-22 19:51:38,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:51:38,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:51:38,919 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-22 19:51:38,919 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-22 19:51:38,920 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-22 19:51:38,920 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-08-22 19:51:38,920 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-22 19:51:38,920 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-22 19:51:38,920 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-08-22 19:51:38,920 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-22 19:51:38,920 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-22 19:51:38,921 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-22 19:51:38,921 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-22 19:51:38,921 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-22 19:51:38,921 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-22 19:51:38,921 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-22 19:51:38,921 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-22 19:51:38,922 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-22 19:51:38,922 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-22 19:51:38,922 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-22 19:51:38,922 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-22 19:51:38,922 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-22 19:51:38,922 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:51:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:51:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 19:51:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-22 19:51:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-22 19:51:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-22 19:51:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-08-22 19:51:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-22 19:51:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-22 19:51:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-22 19:51:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-08-22 19:51:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-22 19:51:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-22 19:51:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-22 19:51:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-22 19:51:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-22 19:51:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-22 19:51:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-22 19:51:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-22 19:51:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-22 19:51:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-22 19:51:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-22 19:51:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-22 19:51:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:51:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:51:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:51:39,488 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:51:39,488 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-08-22 19:51:39,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:51:39 BoogieIcfgContainer [2020-08-22 19:51:39,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:51:39,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:51:39,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:51:39,502 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:51:39,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:51:38" (1/3) ... [2020-08-22 19:51:39,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56fda45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:51:39, skipping insertion in model container [2020-08-22 19:51:39,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:38" (2/3) ... [2020-08-22 19:51:39,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56fda45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:51:39, skipping insertion in model container [2020-08-22 19:51:39,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:51:39" (3/3) ... [2020-08-22 19:51:39,505 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.02.cil.c [2020-08-22 19:51:39,516 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:51:39,524 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 19:51:39,535 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 19:51:39,558 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:51:39,558 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:51:39,559 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:51:39,559 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:51:39,559 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:51:39,559 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:51:39,559 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:51:39,559 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:51:39,580 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states. [2020-08-22 19:51:39,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-22 19:51:39,601 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:51:39,603 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] [2020-08-22 19:51:39,603 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:51:39,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:51:39,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1383476838, now seen corresponding path program 1 times [2020-08-22 19:51:39,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:51:39,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851725580] [2020-08-22 19:51:39,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:51:39,681 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:51:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:40,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:51:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:40,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 19:51:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:40,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 19:51:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:40,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 19:51:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:40,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 19:51:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:40,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 19:51:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:40,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:51:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:40,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:51:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:40,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:51:40,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:40,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 19:51:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:40,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:51:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:40,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:51:40,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [851725580] [2020-08-22 19:51:40,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:51:40,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 19:51:40,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397099965] [2020-08-22 19:51:40,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 19:51:40,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:51:40,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 19:51:40,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 19:51:40,291 INFO L87 Difference]: Start difference. First operand 257 states. Second operand 7 states. [2020-08-22 19:51:43,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:51:43,058 INFO L93 Difference]: Finished difference Result 946 states and 1320 transitions. [2020-08-22 19:51:43,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 19:51:43,060 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 127 [2020-08-22 19:51:43,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:51:43,104 INFO L225 Difference]: With dead ends: 946 [2020-08-22 19:51:43,105 INFO L226 Difference]: Without dead ends: 707 [2020-08-22 19:51:43,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-08-22 19:51:43,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-08-22 19:51:43,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 472. [2020-08-22 19:51:43,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2020-08-22 19:51:43,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 597 transitions. [2020-08-22 19:51:43,293 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 597 transitions. Word has length 127 [2020-08-22 19:51:43,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:51:43,294 INFO L479 AbstractCegarLoop]: Abstraction has 472 states and 597 transitions. [2020-08-22 19:51:43,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 19:51:43,294 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 597 transitions. [2020-08-22 19:51:43,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-22 19:51:43,300 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:51:43,301 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] [2020-08-22 19:51:43,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:51:43,302 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:51:43,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:51:43,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1691024482, now seen corresponding path program 1 times [2020-08-22 19:51:43,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:51:43,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766995537] [2020-08-22 19:51:43,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:51:43,306 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:51:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:43,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:51:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:43,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 19:51:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:43,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 19:51:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:43,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 19:51:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:43,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 19:51:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:43,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 19:51:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:43,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:51:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:43,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:51:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:43,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:51:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:43,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 19:51:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:43,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:51:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:43,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:51:43,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766995537] [2020-08-22 19:51:43,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:51:43,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 19:51:43,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910971636] [2020-08-22 19:51:43,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 19:51:43,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:51:43,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 19:51:43,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:51:43,535 INFO L87 Difference]: Start difference. First operand 472 states and 597 transitions. Second operand 8 states. [2020-08-22 19:51:45,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:51:45,230 INFO L93 Difference]: Finished difference Result 1128 states and 1479 transitions. [2020-08-22 19:51:45,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 19:51:45,231 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 128 [2020-08-22 19:51:45,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:51:45,246 INFO L225 Difference]: With dead ends: 1128 [2020-08-22 19:51:45,247 INFO L226 Difference]: Without dead ends: 700 [2020-08-22 19:51:45,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-08-22 19:51:45,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-08-22 19:51:45,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 460. [2020-08-22 19:51:45,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-08-22 19:51:45,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 578 transitions. [2020-08-22 19:51:45,408 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 578 transitions. Word has length 128 [2020-08-22 19:51:45,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:51:45,409 INFO L479 AbstractCegarLoop]: Abstraction has 460 states and 578 transitions. [2020-08-22 19:51:45,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 19:51:45,409 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 578 transitions. [2020-08-22 19:51:45,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-08-22 19:51:45,413 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:51:45,414 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] [2020-08-22 19:51:45,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 19:51:45,415 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:51:45,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:51:45,415 INFO L82 PathProgramCache]: Analyzing trace with hash -2002481605, now seen corresponding path program 1 times [2020-08-22 19:51:45,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:51:45,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809854222] [2020-08-22 19:51:45,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:51:45,421 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:51:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:45,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:51:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:45,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 19:51:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:45,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 19:51:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:45,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 19:51:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:45,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 19:51:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:45,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 19:51:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:45,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:51:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:45,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:51:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:45,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:51:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:45,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 19:51:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:45,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:51:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:45,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:51:45,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809854222] [2020-08-22 19:51:45,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:51:45,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 19:51:45,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790426043] [2020-08-22 19:51:45,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 19:51:45,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:51:45,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 19:51:45,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 19:51:45,706 INFO L87 Difference]: Start difference. First operand 460 states and 578 transitions. Second operand 7 states. [2020-08-22 19:51:47,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:51:47,992 INFO L93 Difference]: Finished difference Result 1752 states and 2439 transitions. [2020-08-22 19:51:47,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 19:51:47,993 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 132 [2020-08-22 19:51:47,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:51:48,012 INFO L225 Difference]: With dead ends: 1752 [2020-08-22 19:51:48,012 INFO L226 Difference]: Without dead ends: 1336 [2020-08-22 19:51:48,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-08-22 19:51:48,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2020-08-22 19:51:48,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 947. [2020-08-22 19:51:48,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 947 states. [2020-08-22 19:51:48,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1238 transitions. [2020-08-22 19:51:48,200 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1238 transitions. Word has length 132 [2020-08-22 19:51:48,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:51:48,201 INFO L479 AbstractCegarLoop]: Abstraction has 947 states and 1238 transitions. [2020-08-22 19:51:48,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 19:51:48,201 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1238 transitions. [2020-08-22 19:51:48,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-08-22 19:51:48,204 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:51:48,204 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:51:48,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 19:51:48,205 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:51:48,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:51:48,206 INFO L82 PathProgramCache]: Analyzing trace with hash 537882589, now seen corresponding path program 1 times [2020-08-22 19:51:48,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:51:48,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1450626519] [2020-08-22 19:51:48,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:51:48,243 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:51:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:48,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:51:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:48,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 19:51:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:48,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 19:51:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:48,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 19:51:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:48,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 19:51:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:48,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 19:51:48,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:48,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:51:48,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:48,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:51:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:48,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:51:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:48,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 19:51:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:48,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:51:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:48,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 19:51:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:48,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 19:51:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:48,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:51:48,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1450626519] [2020-08-22 19:51:48,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:51:48,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 19:51:48,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223687139] [2020-08-22 19:51:48,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 19:51:48,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:51:48,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 19:51:48,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:51:48,482 INFO L87 Difference]: Start difference. First operand 947 states and 1238 transitions. Second operand 8 states. [2020-08-22 19:51:51,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:51:51,710 INFO L93 Difference]: Finished difference Result 3722 states and 5501 transitions. [2020-08-22 19:51:51,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 19:51:51,710 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 165 [2020-08-22 19:51:51,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:51:51,734 INFO L225 Difference]: With dead ends: 3722 [2020-08-22 19:51:51,734 INFO L226 Difference]: Without dead ends: 2820 [2020-08-22 19:51:51,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2020-08-22 19:51:51,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2020-08-22 19:51:52,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2091. [2020-08-22 19:51:52,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2091 states. [2020-08-22 19:51:52,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2967 transitions. [2020-08-22 19:51:52,164 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2967 transitions. Word has length 165 [2020-08-22 19:51:52,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:51:52,166 INFO L479 AbstractCegarLoop]: Abstraction has 2091 states and 2967 transitions. [2020-08-22 19:51:52,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 19:51:52,166 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2967 transitions. [2020-08-22 19:51:52,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-08-22 19:51:52,179 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:51:52,179 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:51:52,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 19:51:52,180 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:51:52,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:51:52,180 INFO L82 PathProgramCache]: Analyzing trace with hash 755814652, now seen corresponding path program 1 times [2020-08-22 19:51:52,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:51:52,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [627531731] [2020-08-22 19:51:52,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:51:52,186 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:51:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:51:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 19:51:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 19:51:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 19:51:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 19:51:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 19:51:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:51:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:51:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:51:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 19:51:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:51:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 19:51:52,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 19:51:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-08-22 19:51:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-08-22 19:51:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:51:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:51:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:51:52,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:51:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:51:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:52,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:51:52,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [627531731] [2020-08-22 19:51:52,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:51:52,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 19:51:52,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126774733] [2020-08-22 19:51:52,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 19:51:52,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:51:52,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 19:51:52,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-08-22 19:51:52,490 INFO L87 Difference]: Start difference. First operand 2091 states and 2967 transitions. Second operand 12 states. [2020-08-22 19:51:58,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:51:58,280 INFO L93 Difference]: Finished difference Result 8991 states and 15078 transitions. [2020-08-22 19:51:58,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-08-22 19:51:58,280 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 230 [2020-08-22 19:51:58,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:51:58,341 INFO L225 Difference]: With dead ends: 8991 [2020-08-22 19:51:58,341 INFO L226 Difference]: Without dead ends: 6948 [2020-08-22 19:51:58,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=499, Invalid=1853, Unknown=0, NotChecked=0, Total=2352 [2020-08-22 19:51:58,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6948 states. [2020-08-22 19:51:59,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6948 to 4943. [2020-08-22 19:51:59,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4943 states. [2020-08-22 19:51:59,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4943 states to 4943 states and 7731 transitions. [2020-08-22 19:51:59,474 INFO L78 Accepts]: Start accepts. Automaton has 4943 states and 7731 transitions. Word has length 230 [2020-08-22 19:51:59,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:51:59,475 INFO L479 AbstractCegarLoop]: Abstraction has 4943 states and 7731 transitions. [2020-08-22 19:51:59,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 19:51:59,475 INFO L276 IsEmpty]: Start isEmpty. Operand 4943 states and 7731 transitions. [2020-08-22 19:51:59,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-08-22 19:51:59,488 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:51:59,488 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:51:59,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 19:51:59,492 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:51:59,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:51:59,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1577887462, now seen corresponding path program 1 times [2020-08-22 19:51:59,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:51:59,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898740574] [2020-08-22 19:51:59,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:51:59,504 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:51:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:51:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 19:51:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 19:51:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 19:51:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 19:51:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 19:51:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:51:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:51:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:51:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 19:51:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:51:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 19:51:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 19:51:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-08-22 19:51:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:51:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:51:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:51:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:51:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 19:51:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:59,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:51:59,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [898740574] [2020-08-22 19:51:59,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:51:59,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 19:51:59,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379897912] [2020-08-22 19:51:59,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 19:51:59,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:51:59,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 19:51:59,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-22 19:51:59,843 INFO L87 Difference]: Start difference. First operand 4943 states and 7731 transitions. Second operand 9 states. [2020-08-22 19:52:03,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:52:03,959 INFO L93 Difference]: Finished difference Result 14902 states and 25159 transitions. [2020-08-22 19:52:03,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-22 19:52:03,960 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 226 [2020-08-22 19:52:03,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:52:04,045 INFO L225 Difference]: With dead ends: 14902 [2020-08-22 19:52:04,045 INFO L226 Difference]: Without dead ends: 10009 [2020-08-22 19:52:04,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=244, Invalid=568, Unknown=0, NotChecked=0, Total=812 [2020-08-22 19:52:04,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10009 states. [2020-08-22 19:52:05,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10009 to 8124. [2020-08-22 19:52:05,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8124 states. [2020-08-22 19:52:05,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8124 states to 8124 states and 13044 transitions. [2020-08-22 19:52:05,589 INFO L78 Accepts]: Start accepts. Automaton has 8124 states and 13044 transitions. Word has length 226 [2020-08-22 19:52:05,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:52:05,589 INFO L479 AbstractCegarLoop]: Abstraction has 8124 states and 13044 transitions. [2020-08-22 19:52:05,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 19:52:05,590 INFO L276 IsEmpty]: Start isEmpty. Operand 8124 states and 13044 transitions. [2020-08-22 19:52:05,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-08-22 19:52:05,608 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:52:05,608 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:52:05,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 19:52:05,609 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:52:05,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:52:05,609 INFO L82 PathProgramCache]: Analyzing trace with hash 550596668, now seen corresponding path program 1 times [2020-08-22 19:52:05,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:52:05,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1125632286] [2020-08-22 19:52:05,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:52:05,615 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:52:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:52:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 19:52:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 19:52:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 19:52:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 19:52:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 19:52:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:52:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:52:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 19:52:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:52:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-22 19:52:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:52:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:52:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:52:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-08-22 19:52:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-08-22 19:52:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-08-22 19:52:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:52:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:52:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:05,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:52:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:06,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:52:06,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1125632286] [2020-08-22 19:52:06,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:52:06,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 19:52:06,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675611599] [2020-08-22 19:52:06,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 19:52:06,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:52:06,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 19:52:06,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-08-22 19:52:06,040 INFO L87 Difference]: Start difference. First operand 8124 states and 13044 transitions. Second operand 11 states. [2020-08-22 19:52:10,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:52:10,246 INFO L93 Difference]: Finished difference Result 18545 states and 29578 transitions. [2020-08-22 19:52:10,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-22 19:52:10,247 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 279 [2020-08-22 19:52:10,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:52:10,324 INFO L225 Difference]: With dead ends: 18545 [2020-08-22 19:52:10,324 INFO L226 Difference]: Without dead ends: 10470 [2020-08-22 19:52:10,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=237, Invalid=693, Unknown=0, NotChecked=0, Total=930 [2020-08-22 19:52:10,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10470 states. [2020-08-22 19:52:11,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10470 to 8112. [2020-08-22 19:52:11,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8112 states. [2020-08-22 19:52:11,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8112 states to 8112 states and 13019 transitions. [2020-08-22 19:52:11,479 INFO L78 Accepts]: Start accepts. Automaton has 8112 states and 13019 transitions. Word has length 279 [2020-08-22 19:52:11,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:52:11,479 INFO L479 AbstractCegarLoop]: Abstraction has 8112 states and 13019 transitions. [2020-08-22 19:52:11,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 19:52:11,479 INFO L276 IsEmpty]: Start isEmpty. Operand 8112 states and 13019 transitions. [2020-08-22 19:52:11,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-08-22 19:52:11,491 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:52:11,492 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:52:11,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 19:52:11,492 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:52:11,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:52:11,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1697090985, now seen corresponding path program 1 times [2020-08-22 19:52:11,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:52:11,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [217341901] [2020-08-22 19:52:11,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:52:11,498 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:52:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:52:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 19:52:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 19:52:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 19:52:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 19:52:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 19:52:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:11,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:52:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:52:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 19:52:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:52:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 19:52:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 19:52:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-08-22 19:52:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:52:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:52:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:52:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:11,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:52:11,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [217341901] [2020-08-22 19:52:11,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:52:11,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 19:52:11,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905455773] [2020-08-22 19:52:11,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 19:52:11,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:52:11,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 19:52:11,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 19:52:11,781 INFO L87 Difference]: Start difference. First operand 8112 states and 13019 transitions. Second operand 10 states. [2020-08-22 19:52:17,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:52:17,148 INFO L93 Difference]: Finished difference Result 18146 states and 29108 transitions. [2020-08-22 19:52:17,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-22 19:52:17,149 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 220 [2020-08-22 19:52:17,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:52:17,231 INFO L225 Difference]: With dead ends: 18146 [2020-08-22 19:52:17,231 INFO L226 Difference]: Without dead ends: 10076 [2020-08-22 19:52:17,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2020-08-22 19:52:17,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10076 states. [2020-08-22 19:52:19,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10076 to 8104. [2020-08-22 19:52:19,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8104 states. [2020-08-22 19:52:19,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8104 states to 8104 states and 13004 transitions. [2020-08-22 19:52:19,727 INFO L78 Accepts]: Start accepts. Automaton has 8104 states and 13004 transitions. Word has length 220 [2020-08-22 19:52:19,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:52:19,727 INFO L479 AbstractCegarLoop]: Abstraction has 8104 states and 13004 transitions. [2020-08-22 19:52:19,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 19:52:19,727 INFO L276 IsEmpty]: Start isEmpty. Operand 8104 states and 13004 transitions. [2020-08-22 19:52:19,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-08-22 19:52:19,738 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:52:19,738 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:52:19,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 19:52:19,739 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:52:19,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:52:19,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1424066057, now seen corresponding path program 1 times [2020-08-22 19:52:19,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:52:19,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112842954] [2020-08-22 19:52:19,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:52:19,745 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:52:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:52:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 19:52:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 19:52:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 19:52:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 19:52:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 19:52:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:52:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:52:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 19:52:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:52:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 19:52:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 19:52:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-08-22 19:52:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:52:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:19,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:52:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:52:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:19,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:52:19,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112842954] [2020-08-22 19:52:19,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:52:19,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 19:52:19,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445223622] [2020-08-22 19:52:19,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 19:52:19,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:52:19,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 19:52:19,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 19:52:19,991 INFO L87 Difference]: Start difference. First operand 8104 states and 13004 transitions. Second operand 10 states. [2020-08-22 19:52:23,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:52:23,768 INFO L93 Difference]: Finished difference Result 20699 states and 35038 transitions. [2020-08-22 19:52:23,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-08-22 19:52:23,769 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 220 [2020-08-22 19:52:23,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:52:23,948 INFO L225 Difference]: With dead ends: 20699 [2020-08-22 19:52:23,948 INFO L226 Difference]: Without dead ends: 12638 [2020-08-22 19:52:24,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=227, Invalid=703, Unknown=0, NotChecked=0, Total=930 [2020-08-22 19:52:24,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12638 states. [2020-08-22 19:52:25,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12638 to 10350. [2020-08-22 19:52:25,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10350 states. [2020-08-22 19:52:25,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10350 states to 10350 states and 16012 transitions. [2020-08-22 19:52:25,318 INFO L78 Accepts]: Start accepts. Automaton has 10350 states and 16012 transitions. Word has length 220 [2020-08-22 19:52:25,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:52:25,319 INFO L479 AbstractCegarLoop]: Abstraction has 10350 states and 16012 transitions. [2020-08-22 19:52:25,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 19:52:25,319 INFO L276 IsEmpty]: Start isEmpty. Operand 10350 states and 16012 transitions. [2020-08-22 19:52:25,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-08-22 19:52:25,332 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:52:25,332 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:52:25,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 19:52:25,333 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:52:25,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:52:25,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1439116596, now seen corresponding path program 1 times [2020-08-22 19:52:25,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:52:25,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1928921819] [2020-08-22 19:52:25,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:52:25,338 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:52:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:52:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 19:52:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 19:52:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 19:52:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 19:52:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 19:52:25,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:52:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:52:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 19:52:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:52:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 19:52:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 19:52:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-08-22 19:52:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:52:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:52:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:52:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:25,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:52:25,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1928921819] [2020-08-22 19:52:25,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:52:25,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 19:52:25,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170750612] [2020-08-22 19:52:25,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 19:52:25,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:52:25,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 19:52:25,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-08-22 19:52:25,769 INFO L87 Difference]: Start difference. First operand 10350 states and 16012 transitions. Second operand 12 states. [2020-08-22 19:52:30,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:52:30,525 INFO L93 Difference]: Finished difference Result 22667 states and 35758 transitions. [2020-08-22 19:52:30,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-22 19:52:30,526 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 220 [2020-08-22 19:52:30,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:52:30,584 INFO L225 Difference]: With dead ends: 22667 [2020-08-22 19:52:30,584 INFO L226 Difference]: Without dead ends: 9475 [2020-08-22 19:52:30,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=248, Invalid=622, Unknown=0, NotChecked=0, Total=870 [2020-08-22 19:52:30,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9475 states. [2020-08-22 19:52:31,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9475 to 7824. [2020-08-22 19:52:31,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7824 states. [2020-08-22 19:52:31,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7824 states to 7824 states and 11208 transitions. [2020-08-22 19:52:31,870 INFO L78 Accepts]: Start accepts. Automaton has 7824 states and 11208 transitions. Word has length 220 [2020-08-22 19:52:31,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:52:31,870 INFO L479 AbstractCegarLoop]: Abstraction has 7824 states and 11208 transitions. [2020-08-22 19:52:31,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 19:52:31,871 INFO L276 IsEmpty]: Start isEmpty. Operand 7824 states and 11208 transitions. [2020-08-22 19:52:31,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-08-22 19:52:31,879 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:52:31,879 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:52:31,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 19:52:31,880 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:52:31,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:52:31,880 INFO L82 PathProgramCache]: Analyzing trace with hash 219517836, now seen corresponding path program 1 times [2020-08-22 19:52:31,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:52:31,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [378178447] [2020-08-22 19:52:31,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:52:31,886 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:52:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:31,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:52:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:31,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 19:52:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:31,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 19:52:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:31,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 19:52:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:32,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 19:52:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:32,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 19:52:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:32,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:32,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:52:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:32,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:52:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:32,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 19:52:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:32,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:52:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:32,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 19:52:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:32,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-22 19:52:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:32,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-08-22 19:52:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:32,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:32,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:52:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:32,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:32,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:52:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:32,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:52:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:32,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:52:32,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [378178447] [2020-08-22 19:52:32,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:52:32,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 19:52:32,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652026875] [2020-08-22 19:52:32,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 19:52:32,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:52:32,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 19:52:32,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 19:52:32,161 INFO L87 Difference]: Start difference. First operand 7824 states and 11208 transitions. Second operand 10 states. [2020-08-22 19:52:37,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:52:37,988 INFO L93 Difference]: Finished difference Result 24720 states and 38989 transitions. [2020-08-22 19:52:37,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-22 19:52:37,988 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 230 [2020-08-22 19:52:37,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:52:38,080 INFO L225 Difference]: With dead ends: 24720 [2020-08-22 19:52:38,080 INFO L226 Difference]: Without dead ends: 16939 [2020-08-22 19:52:38,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2020-08-22 19:52:38,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16939 states. [2020-08-22 19:52:40,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16939 to 14239. [2020-08-22 19:52:40,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14239 states. [2020-08-22 19:52:40,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14239 states to 14239 states and 20157 transitions. [2020-08-22 19:52:40,262 INFO L78 Accepts]: Start accepts. Automaton has 14239 states and 20157 transitions. Word has length 230 [2020-08-22 19:52:40,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:52:40,263 INFO L479 AbstractCegarLoop]: Abstraction has 14239 states and 20157 transitions. [2020-08-22 19:52:40,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 19:52:40,263 INFO L276 IsEmpty]: Start isEmpty. Operand 14239 states and 20157 transitions. [2020-08-22 19:52:40,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-08-22 19:52:40,284 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:52:40,284 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:52:40,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 19:52:40,285 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:52:40,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:52:40,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1575682267, now seen corresponding path program 1 times [2020-08-22 19:52:40,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:52:40,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1669764570] [2020-08-22 19:52:40,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:52:40,291 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:52:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:52:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 19:52:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 19:52:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 19:52:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 19:52:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 19:52:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:52:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:52:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 19:52:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 19:52:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 19:52:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-22 19:52:40,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-22 19:52:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-08-22 19:52:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-08-22 19:52:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-08-22 19:52:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:52:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:52:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-08-22 19:52:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-08-22 19:52:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-08-22 19:52:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 19:52:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2020-08-22 19:52:40,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:40,623 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-08-22 19:52:40,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1669764570] [2020-08-22 19:52:40,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:52:40,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 19:52:40,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039474250] [2020-08-22 19:52:40,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 19:52:40,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:52:40,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 19:52:40,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-08-22 19:52:40,627 INFO L87 Difference]: Start difference. First operand 14239 states and 20157 transitions. Second operand 12 states. [2020-08-22 19:52:46,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:52:46,180 INFO L93 Difference]: Finished difference Result 30730 states and 43848 transitions. [2020-08-22 19:52:46,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-08-22 19:52:46,181 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 280 [2020-08-22 19:52:46,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:52:46,245 INFO L225 Difference]: With dead ends: 30730 [2020-08-22 19:52:46,245 INFO L226 Difference]: Without dead ends: 16536 [2020-08-22 19:52:46,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=310, Invalid=1022, Unknown=0, NotChecked=0, Total=1332 [2020-08-22 19:52:46,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16536 states. [2020-08-22 19:52:48,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16536 to 12212. [2020-08-22 19:52:48,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12212 states. [2020-08-22 19:52:48,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12212 states to 12212 states and 16213 transitions. [2020-08-22 19:52:48,067 INFO L78 Accepts]: Start accepts. Automaton has 12212 states and 16213 transitions. Word has length 280 [2020-08-22 19:52:48,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:52:48,068 INFO L479 AbstractCegarLoop]: Abstraction has 12212 states and 16213 transitions. [2020-08-22 19:52:48,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 19:52:48,068 INFO L276 IsEmpty]: Start isEmpty. Operand 12212 states and 16213 transitions. [2020-08-22 19:52:48,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-08-22 19:52:48,080 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:52:48,081 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:52:48,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 19:52:48,081 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:52:48,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:52:48,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1226891913, now seen corresponding path program 1 times [2020-08-22 19:52:48,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:52:48,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380155641] [2020-08-22 19:52:48,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:52:48,087 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:52:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:52:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 19:52:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 19:52:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 19:52:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 19:52:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 19:52:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:52:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 19:52:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 19:52:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:52:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-22 19:52:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-22 19:52:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-08-22 19:52:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-08-22 19:52:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:52:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:52:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-22 19:52:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-08-22 19:52:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:52:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:52:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:52:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 19:52:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:52:48,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:52:48,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1380155641] [2020-08-22 19:52:48,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:52:48,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-08-22 19:52:48,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130180735] [2020-08-22 19:52:48,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-22 19:52:48,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:52:48,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-22 19:52:48,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-08-22 19:52:48,443 INFO L87 Difference]: Start difference. First operand 12212 states and 16213 transitions. Second operand 15 states. [2020-08-22 19:52:56,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:52:56,886 INFO L93 Difference]: Finished difference Result 21296 states and 28380 transitions. [2020-08-22 19:52:56,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-08-22 19:52:56,887 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 295 [2020-08-22 19:52:56,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:52:56,921 INFO L225 Difference]: With dead ends: 21296 [2020-08-22 19:52:56,922 INFO L226 Difference]: Without dead ends: 9178 [2020-08-22 19:52:56,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1405 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1168, Invalid=3944, Unknown=0, NotChecked=0, Total=5112 [2020-08-22 19:52:56,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9178 states. [2020-08-22 19:52:57,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9178 to 7287. [2020-08-22 19:52:57,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7287 states. [2020-08-22 19:52:57,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7287 states to 7287 states and 8914 transitions. [2020-08-22 19:52:57,891 INFO L78 Accepts]: Start accepts. Automaton has 7287 states and 8914 transitions. Word has length 295 [2020-08-22 19:52:57,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:52:57,892 INFO L479 AbstractCegarLoop]: Abstraction has 7287 states and 8914 transitions. [2020-08-22 19:52:57,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-22 19:52:57,892 INFO L276 IsEmpty]: Start isEmpty. Operand 7287 states and 8914 transitions. [2020-08-22 19:52:57,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-08-22 19:52:57,900 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:52:57,901 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:52:57,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-22 19:52:57,901 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:52:57,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:52:57,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1144377897, now seen corresponding path program 1 times [2020-08-22 19:52:57,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:52:57,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921360987] [2020-08-22 19:52:57,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:52:57,908 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:52:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 19:52:57,929 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 19:52:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 19:52:57,952 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 19:52:58,052 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 19:52:58,052 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 19:52:58,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-22 19:52:58,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:52:58 BoogieIcfgContainer [2020-08-22 19:52:58,103 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 19:52:58,105 INFO L168 Benchmark]: Toolchain (without parser) took 79860.87 ms. Allocated memory was 140.5 MB in the beginning and 2.7 GB in the end (delta: 2.6 GB). Free memory was 104.2 MB in the beginning and 542.6 MB in the end (delta: -438.5 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2020-08-22 19:52:58,106 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 123.1 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 19:52:58,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.30 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 103.9 MB in the beginning and 180.9 MB in the end (delta: -76.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2020-08-22 19:52:58,107 INFO L168 Benchmark]: Boogie Preprocessor took 68.19 ms. Allocated memory is still 202.9 MB. Free memory was 180.9 MB in the beginning and 178.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-08-22 19:52:58,108 INFO L168 Benchmark]: RCFGBuilder took 644.32 ms. Allocated memory is still 202.9 MB. Free memory was 178.2 MB in the beginning and 136.0 MB in the end (delta: 42.2 MB). Peak memory consumption was 42.2 MB. Max. memory is 7.1 GB. [2020-08-22 19:52:58,109 INFO L168 Benchmark]: TraceAbstraction took 78604.92 ms. Allocated memory was 202.9 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 136.0 MB in the beginning and 542.6 MB in the end (delta: -406.6 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2020-08-22 19:52:58,112 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 123.1 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 538.30 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 103.9 MB in the beginning and 180.9 MB in the end (delta: -76.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 68.19 ms. Allocated memory is still 202.9 MB. Free memory was 180.9 MB in the beginning and 178.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 644.32 ms. Allocated memory is still 202.9 MB. Free memory was 178.2 MB in the beginning and 136.0 MB in the end (delta: 42.2 MB). Peak memory consumption was 42.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 78604.92 ms. Allocated memory was 202.9 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 136.0 MB in the beginning and 542.6 MB in the end (delta: -406.6 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] int m_pc = 0; [L16] int t1_pc = 0; [L17] int t2_pc = 0; [L18] int m_st ; [L19] int t1_st ; [L20] int t2_st ; [L21] int m_i ; [L22] int t1_i ; [L23] int t2_i ; [L24] int M_E = 2; [L25] int T1_E = 2; [L26] int T2_E = 2; [L27] int E_1 = 2; [L28] int E_2 = 2; [L563] int __retres1 ; [L567] CALL init_model() [L477] m_i = 1 [L478] t1_i = 1 [L479] t2_i = 1 [L567] RET init_model() [L568] CALL start_simulation() [L504] int kernel_st ; [L505] int tmp ; [L506] int tmp___0 ; [L510] kernel_st = 0 [L511] FCALL update_channels() [L512] CALL init_threads() [L211] COND TRUE m_i == 1 [L212] m_st = 0 [L216] COND TRUE t1_i == 1 [L217] t1_st = 0 [L221] COND TRUE t2_i == 1 [L222] t2_st = 0 [L512] RET init_threads() [L513] CALL fire_delta_events() [L324] COND FALSE !(M_E == 0) [L329] COND FALSE !(T1_E == 0) [L334] COND FALSE !(T2_E == 0) [L339] COND FALSE !(E_1 == 0) [L344] COND FALSE !(E_2 == 0) [L513] RET fire_delta_events() [L514] CALL activate_threads() [L387] int tmp ; [L388] int tmp___0 ; [L389] int tmp___1 ; [L393] CALL, EXPR is_master_triggered() [L143] int __retres1 ; [L146] COND FALSE !(m_pc == 1) [L156] __retres1 = 0 [L158] return (__retres1); [L393] RET, EXPR is_master_triggered() [L393] tmp = is_master_triggered() [L395] COND FALSE !(\read(tmp)) [L401] CALL, EXPR is_transmit1_triggered() [L162] int __retres1 ; [L165] COND FALSE !(t1_pc == 1) [L175] __retres1 = 0 [L177] return (__retres1); [L401] RET, EXPR is_transmit1_triggered() [L401] tmp___0 = is_transmit1_triggered() [L403] COND FALSE !(\read(tmp___0)) [L409] CALL, EXPR is_transmit2_triggered() [L181] int __retres1 ; [L184] COND FALSE !(t2_pc == 1) [L194] __retres1 = 0 [L196] return (__retres1); [L409] RET, EXPR is_transmit2_triggered() [L409] tmp___1 = is_transmit2_triggered() [L411] COND FALSE !(\read(tmp___1)) [L514] RET activate_threads() [L515] CALL reset_delta_events() [L357] COND FALSE !(M_E == 1) [L362] COND FALSE !(T1_E == 1) [L367] COND FALSE !(T2_E == 1) [L372] COND FALSE !(E_1 == 1) [L377] COND FALSE !(E_2 == 1) [L515] RET reset_delta_events() [L518] COND TRUE 1 [L521] kernel_st = 1 [L522] CALL eval() [L257] int tmp ; [L261] COND TRUE 1 [L264] CALL, EXPR exists_runnable_thread() [L231] int __retres1 ; [L234] COND TRUE m_st == 0 [L235] __retres1 = 1 [L252] return (__retres1); [L264] RET, EXPR exists_runnable_thread() [L264] tmp = exists_runnable_thread() [L266] COND TRUE \read(tmp) [L271] COND TRUE m_st == 0 [L272] int tmp_ndt_1; [L273] tmp_ndt_1 = __VERIFIER_nondet_int() [L274] COND FALSE !(\read(tmp_ndt_1)) [L285] COND TRUE t1_st == 0 [L286] int tmp_ndt_2; [L287] tmp_ndt_2 = __VERIFIER_nondet_int() [L288] COND TRUE \read(tmp_ndt_2) [L290] t1_st = 1 [L291] CALL transmit1() [L78] COND TRUE t1_pc == 0 [L89] COND TRUE 1 [L91] t1_pc = 1 [L92] t1_st = 2 [L291] RET transmit1() [L299] COND TRUE t2_st == 0 [L300] int tmp_ndt_3; [L301] tmp_ndt_3 = __VERIFIER_nondet_int() [L302] COND TRUE \read(tmp_ndt_3) [L304] t2_st = 1 [L305] CALL transmit2() [L113] COND TRUE t2_pc == 0 [L124] COND TRUE 1 [L126] t2_pc = 1 [L127] t2_st = 2 [L305] RET transmit2() [L261] COND TRUE 1 [L264] CALL, EXPR exists_runnable_thread() [L231] int __retres1 ; [L234] COND TRUE m_st == 0 [L235] __retres1 = 1 [L252] return (__retres1); [L264] RET, EXPR exists_runnable_thread() [L264] tmp = exists_runnable_thread() [L266] COND TRUE \read(tmp) [L271] COND TRUE m_st == 0 [L272] int tmp_ndt_1; [L273] tmp_ndt_1 = __VERIFIER_nondet_int() [L274] COND TRUE \read(tmp_ndt_1) [L276] m_st = 1 [L277] CALL master() [L37] COND TRUE m_pc == 0 [L48] COND TRUE 1 [L51] E_1 = 1 [L52] CALL immediate_notify() [L425] CALL activate_threads() [L387] int tmp ; [L388] int tmp___0 ; [L389] int tmp___1 ; [L393] CALL, EXPR is_master_triggered() [L143] int __retres1 ; [L146] COND FALSE !(m_pc == 1) [L156] __retres1 = 0 [L158] return (__retres1); [L393] RET, EXPR is_master_triggered() [L393] tmp = is_master_triggered() [L395] COND FALSE !(\read(tmp)) [L401] CALL, EXPR is_transmit1_triggered() [L162] int __retres1 ; [L165] COND TRUE t1_pc == 1 [L166] COND TRUE E_1 == 1 [L167] __retres1 = 1 [L177] return (__retres1); [L401] RET, EXPR is_transmit1_triggered() [L401] tmp___0 = is_transmit1_triggered() [L403] COND TRUE \read(tmp___0) [L404] t1_st = 0 [L409] CALL, EXPR is_transmit2_triggered() [L181] int __retres1 ; [L184] COND TRUE t2_pc == 1 [L185] COND FALSE !(E_2 == 1) [L194] __retres1 = 0 [L196] return (__retres1); [L409] RET, EXPR is_transmit2_triggered() [L409] tmp___1 = is_transmit2_triggered() [L411] COND FALSE !(\read(tmp___1)) [L425] RET activate_threads() [L52] RET immediate_notify() [L53] E_1 = 2 [L56] COND TRUE 1 [L58] m_pc = 1 [L59] m_st = 2 [L277] RET master() [L285] COND TRUE t1_st == 0 [L286] int tmp_ndt_2; [L287] tmp_ndt_2 = __VERIFIER_nondet_int() [L288] COND TRUE \read(tmp_ndt_2) [L290] t1_st = 1 [L291] CALL transmit1() [L78] COND FALSE !(t1_pc == 0) [L81] COND TRUE t1_pc == 1 [L97] E_2 = 1 [L98] CALL immediate_notify() [L425] CALL activate_threads() [L387] int tmp ; [L388] int tmp___0 ; [L389] int tmp___1 ; [L393] CALL, EXPR is_master_triggered() [L143] int __retres1 ; [L146] COND TRUE m_pc == 1 [L147] COND FALSE !(M_E == 1) [L156] __retres1 = 0 [L158] return (__retres1); [L393] RET, EXPR is_master_triggered() [L393] tmp = is_master_triggered() [L395] COND FALSE !(\read(tmp)) [L401] CALL, EXPR is_transmit1_triggered() [L162] int __retres1 ; [L165] COND TRUE t1_pc == 1 [L166] COND FALSE !(E_1 == 1) [L175] __retres1 = 0 [L177] return (__retres1); [L401] RET, EXPR is_transmit1_triggered() [L401] tmp___0 = is_transmit1_triggered() [L403] COND FALSE !(\read(tmp___0)) [L409] CALL, EXPR is_transmit2_triggered() [L181] int __retres1 ; [L184] COND TRUE t2_pc == 1 [L185] COND TRUE E_2 == 1 [L186] __retres1 = 1 [L196] return (__retres1); [L409] RET, EXPR is_transmit2_triggered() [L409] tmp___1 = is_transmit2_triggered() [L411] COND TRUE \read(tmp___1) [L412] t2_st = 0 [L425] RET activate_threads() [L98] RET immediate_notify() [L99] E_2 = 2 [L89] COND TRUE 1 [L91] t1_pc = 1 [L92] t1_st = 2 [L291] RET transmit1() [L299] COND TRUE t2_st == 0 [L300] int tmp_ndt_3; [L301] tmp_ndt_3 = __VERIFIER_nondet_int() [L302] COND TRUE \read(tmp_ndt_3) [L304] t2_st = 1 [L305] CALL transmit2() [L113] COND FALSE !(t2_pc == 0) [L116] COND TRUE t2_pc == 1 [L132] CALL error() [L11] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 23 procedures, 257 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 78.4s, OverallIterations: 14, TraceHistogramMax: 5, AutomataDifference: 59.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4105 SDtfs, 20644 SDslu, 1649 SDs, 0 SdLazy, 25738 SolverSat, 6260 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 990 GetRequests, 602 SyntacticMatches, 0 SemanticMatches, 388 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3729 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14239occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 22667 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...