/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/systemc/token_ring.02.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 19:10:45,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 19:10:45,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 19:10:45,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 19:10:45,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 19:10:45,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 19:10:45,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 19:10:45,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 19:10:45,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 19:10:45,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 19:10:45,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 19:10:45,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 19:10:45,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 19:10:45,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 19:10:45,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 19:10:45,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 19:10:45,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 19:10:45,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 19:10:45,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 19:10:45,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 19:10:45,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 19:10:45,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 19:10:45,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 19:10:45,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 19:10:45,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 19:10:45,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 19:10:45,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 19:10:45,909 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 19:10:45,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 19:10:45,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 19:10:45,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 19:10:45,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 19:10:45,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 19:10:45,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 19:10:45,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 19:10:45,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 19:10:45,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 19:10:45,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 19:10:45,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 19:10:45,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 19:10:45,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 19:10:45,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 19:10:45,953 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 19:10:45,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 19:10:45,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 19:10:45,958 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 19:10:45,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 19:10:45,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 19:10:45,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 19:10:45,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 19:10:45,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 19:10:45,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 19:10:45,961 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 19:10:45,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 19:10:45,962 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 19:10:45,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 19:10:45,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 19:10:45,962 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 19:10:45,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 19:10:45,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 19:10:45,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 19:10:45,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 19:10:45,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 19:10:45,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 19:10:45,964 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 19:10:46,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 19:10:46,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 19:10:46,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 19:10:46,431 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 19:10:46,432 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 19:10:46,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.02.cil-2.c [2021-02-23 19:10:46,518 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efc508700/5abcca707e2944dcbeb26a29b8d58eb4/FLAGff5ef55b0 [2021-02-23 19:10:47,202 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 19:10:47,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.02.cil-2.c [2021-02-23 19:10:47,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efc508700/5abcca707e2944dcbeb26a29b8d58eb4/FLAGff5ef55b0 [2021-02-23 19:10:47,516 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efc508700/5abcca707e2944dcbeb26a29b8d58eb4 [2021-02-23 19:10:47,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 19:10:47,536 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 19:10:47,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 19:10:47,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 19:10:47,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 19:10:47,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:10:47" (1/1) ... [2021-02-23 19:10:47,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6567e6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:10:47, skipping insertion in model container [2021-02-23 19:10:47,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:10:47" (1/1) ... [2021-02-23 19:10:47,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 19:10:47,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 19:10:47,847 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.02.cil-2.c[366,379] [2021-02-23 19:10:47,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 19:10:48,007 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 19:10:48,023 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.02.cil-2.c[366,379] [2021-02-23 19:10:48,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 19:10:48,107 INFO L208 MainTranslator]: Completed translation [2021-02-23 19:10:48,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:10:48 WrapperNode [2021-02-23 19:10:48,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 19:10:48,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 19:10:48,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 19:10:48,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 19:10:48,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:10:48" (1/1) ... [2021-02-23 19:10:48,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:10:48" (1/1) ... [2021-02-23 19:10:48,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:10:48" (1/1) ... [2021-02-23 19:10:48,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:10:48" (1/1) ... [2021-02-23 19:10:48,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:10:48" (1/1) ... [2021-02-23 19:10:48,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:10:48" (1/1) ... [2021-02-23 19:10:48,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:10:48" (1/1) ... [2021-02-23 19:10:48,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 19:10:48,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 19:10:48,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 19:10:48,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 19:10:48,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:10:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 19:10:48,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 19:10:48,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 19:10:48,275 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 19:10:48,275 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-02-23 19:10:48,275 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2021-02-23 19:10:48,275 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2021-02-23 19:10:48,275 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2021-02-23 19:10:48,276 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2021-02-23 19:10:48,276 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2021-02-23 19:10:48,276 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2021-02-23 19:10:48,276 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-02-23 19:10:48,276 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2021-02-23 19:10:48,277 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-02-23 19:10:48,277 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2021-02-23 19:10:48,277 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-02-23 19:10:48,277 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-02-23 19:10:48,277 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-02-23 19:10:48,278 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-02-23 19:10:48,278 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2021-02-23 19:10:48,278 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2021-02-23 19:10:48,278 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2021-02-23 19:10:48,278 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2021-02-23 19:10:48,278 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2021-02-23 19:10:48,279 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 19:10:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 19:10:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 19:10:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 19:10:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 19:10:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-02-23 19:10:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2021-02-23 19:10:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2021-02-23 19:10:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2021-02-23 19:10:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-02-23 19:10:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 19:10:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure master [2021-02-23 19:10:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2021-02-23 19:10:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2021-02-23 19:10:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-02-23 19:10:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2021-02-23 19:10:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-02-23 19:10:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2021-02-23 19:10:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-02-23 19:10:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-02-23 19:10:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-02-23 19:10:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2021-02-23 19:10:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2021-02-23 19:10:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2021-02-23 19:10:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2021-02-23 19:10:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2021-02-23 19:10:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 19:10:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 19:10:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 19:10:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 19:10:48,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 19:10:48,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 19:10:48,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 19:10:49,052 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 19:10:49,054 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 19:10:49,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:10:49 BoogieIcfgContainer [2021-02-23 19:10:49,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 19:10:49,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 19:10:49,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 19:10:49,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 19:10:49,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 07:10:47" (1/3) ... [2021-02-23 19:10:49,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8329dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:10:49, skipping insertion in model container [2021-02-23 19:10:49,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:10:48" (2/3) ... [2021-02-23 19:10:49,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8329dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:10:49, skipping insertion in model container [2021-02-23 19:10:49,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:10:49" (3/3) ... [2021-02-23 19:10:49,069 INFO L111 eAbstractionObserver]: Analyzing ICFG token_ring.02.cil-2.c [2021-02-23 19:10:49,078 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 19:10:49,086 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 19:10:49,106 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 19:10:49,133 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 19:10:49,133 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 19:10:49,133 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 19:10:49,133 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 19:10:49,133 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 19:10:49,134 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 19:10:49,134 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 19:10:49,134 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 19:10:49,159 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2021-02-23 19:10:49,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-02-23 19:10:49,185 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:10:49,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:10:49,187 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:10:49,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:10:49,194 INFO L82 PathProgramCache]: Analyzing trace with hash -2095587415, now seen corresponding path program 1 times [2021-02-23 19:10:49,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:10:49,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837704440] [2021-02-23 19:10:49,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:10:49,300 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:10:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:49,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:49,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:49,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:49,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:49,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:49,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:49,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:49,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:49,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:49,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:49,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 19:10:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:49,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:49,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:10:49,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 19:10:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:49,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:49,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:49,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 19:10:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:49,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:49,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:10:49,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 19:10:49,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:49,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:49,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:49,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-23 19:10:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:49,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:49,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:49,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:10:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:49,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:49,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:49,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:10:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:49,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:49,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:49,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:10:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:49,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:49,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:49,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 19:10:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:49,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:49,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:49,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 19:10:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:49,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:49,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:50,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:10:50,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [837704440] [2021-02-23 19:10:50,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:10:50,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 19:10:50,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833366472] [2021-02-23 19:10:50,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 19:10:50,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:10:50,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 19:10:50,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-23 19:10:50,034 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 8 states. [2021-02-23 19:10:52,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:10:52,620 INFO L93 Difference]: Finished difference Result 700 states and 937 transitions. [2021-02-23 19:10:52,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-23 19:10:52,623 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2021-02-23 19:10:52,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:10:52,642 INFO L225 Difference]: With dead ends: 700 [2021-02-23 19:10:52,642 INFO L226 Difference]: Without dead ends: 438 [2021-02-23 19:10:52,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2021-02-23 19:10:52,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2021-02-23 19:10:52,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 281. [2021-02-23 19:10:52,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2021-02-23 19:10:52,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 343 transitions. [2021-02-23 19:10:52,889 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 343 transitions. Word has length 142 [2021-02-23 19:10:52,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:10:52,891 INFO L480 AbstractCegarLoop]: Abstraction has 281 states and 343 transitions. [2021-02-23 19:10:52,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 19:10:52,891 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 343 transitions. [2021-02-23 19:10:52,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-02-23 19:10:52,904 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:10:52,905 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:10:52,905 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 19:10:52,905 INFO L428 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:10:52,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:10:52,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1382870025, now seen corresponding path program 1 times [2021-02-23 19:10:52,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:10:52,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357890507] [2021-02-23 19:10:52,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:10:52,917 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:10:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:53,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:53,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:53,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:53,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:53,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:53,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:53,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:53,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:53,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:53,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 19:10:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:53,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:53,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:53,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:53,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:10:53,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 19:10:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:53,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:53,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:53,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 19:10:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:53,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:53,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:53,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:53,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:10:53,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 19:10:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:53,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:53,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:53,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-23 19:10:53,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:53,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:53,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:53,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:10:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:53,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:53,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:53,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:10:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:53,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:53,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:53,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:10:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:53,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:53,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:53,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 19:10:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:53,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:53,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:53,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 19:10:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:53,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:53,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:53,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:10:53,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357890507] [2021-02-23 19:10:53,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:10:53,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 19:10:53,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545512505] [2021-02-23 19:10:53,323 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 19:10:53,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:10:53,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 19:10:53,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-23 19:10:53,324 INFO L87 Difference]: Start difference. First operand 281 states and 343 transitions. Second operand 8 states. [2021-02-23 19:10:55,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:10:55,684 INFO L93 Difference]: Finished difference Result 668 states and 854 transitions. [2021-02-23 19:10:55,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-23 19:10:55,685 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2021-02-23 19:10:55,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:10:55,691 INFO L225 Difference]: With dead ends: 668 [2021-02-23 19:10:55,692 INFO L226 Difference]: Without dead ends: 437 [2021-02-23 19:10:55,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-02-23 19:10:55,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2021-02-23 19:10:55,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 280. [2021-02-23 19:10:55,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2021-02-23 19:10:55,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 341 transitions. [2021-02-23 19:10:55,777 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 341 transitions. Word has length 142 [2021-02-23 19:10:55,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:10:55,778 INFO L480 AbstractCegarLoop]: Abstraction has 280 states and 341 transitions. [2021-02-23 19:10:55,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 19:10:55,778 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 341 transitions. [2021-02-23 19:10:55,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-02-23 19:10:55,781 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:10:55,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:10:55,781 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 19:10:55,782 INFO L428 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:10:55,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:10:55,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1544083351, now seen corresponding path program 1 times [2021-02-23 19:10:55,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:10:55,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2075456179] [2021-02-23 19:10:55,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:10:55,785 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:10:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:55,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:55,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:55,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:55,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:55,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:55,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:55,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:55,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:55,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:55,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:55,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:55,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:55,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:56,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:56,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:56,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:56,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:56,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 19:10:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:56,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:56,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:56,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 19:10:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:56,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:56,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:56,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 19:10:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:56,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:56,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:56,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 19:10:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:56,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:56,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:56,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-23 19:10:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:56,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:56,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:56,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:10:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:56,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:56,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:56,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:10:56,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:56,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:56,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:56,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:10:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:56,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:56,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:56,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 19:10:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:56,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:56,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:56,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 19:10:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:56,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:56,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:56,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:10:56,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2075456179] [2021-02-23 19:10:56,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:10:56,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 19:10:56,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378117925] [2021-02-23 19:10:56,168 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 19:10:56,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:10:56,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 19:10:56,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 19:10:56,169 INFO L87 Difference]: Start difference. First operand 280 states and 341 transitions. Second operand 7 states. [2021-02-23 19:10:59,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:10:59,283 INFO L93 Difference]: Finished difference Result 1005 states and 1305 transitions. [2021-02-23 19:10:59,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 19:10:59,285 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2021-02-23 19:10:59,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:10:59,292 INFO L225 Difference]: With dead ends: 1005 [2021-02-23 19:10:59,293 INFO L226 Difference]: Without dead ends: 779 [2021-02-23 19:10:59,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2021-02-23 19:10:59,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2021-02-23 19:10:59,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 527. [2021-02-23 19:10:59,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2021-02-23 19:10:59,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 649 transitions. [2021-02-23 19:10:59,423 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 649 transitions. Word has length 142 [2021-02-23 19:10:59,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:10:59,424 INFO L480 AbstractCegarLoop]: Abstraction has 527 states and 649 transitions. [2021-02-23 19:10:59,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 19:10:59,425 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 649 transitions. [2021-02-23 19:10:59,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-02-23 19:10:59,430 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:10:59,430 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, 1] [2021-02-23 19:10:59,431 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 19:10:59,431 INFO L428 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:10:59,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:10:59,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1160647897, now seen corresponding path program 1 times [2021-02-23 19:10:59,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:10:59,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758922267] [2021-02-23 19:10:59,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:10:59,436 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:10:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:59,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:59,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:59,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:59,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:59,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:59,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:59,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 19:10:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:59,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 19:10:59,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:59,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 19:10:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:59,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:59,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 19:10:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:59,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-23 19:10:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:59,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:10:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:59,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:10:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:59,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:10:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:59,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 19:10:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:59,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 19:10:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:59,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 19:10:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:59,809 WARN L141 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-02-23 19:10:59,811 WARN L147 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size 14 [2021-02-23 19:10:59,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:10:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 19:10:59,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:59,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:10:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:59,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:10:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:59,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:10:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:59,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-02-23 19:10:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:59,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:59,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:59,990 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-02-23 19:10:59,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1758922267] [2021-02-23 19:10:59,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:10:59,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 19:10:59,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414944348] [2021-02-23 19:10:59,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 19:10:59,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:10:59,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 19:10:59,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-02-23 19:10:59,994 INFO L87 Difference]: Start difference. First operand 527 states and 649 transitions. Second operand 10 states. [2021-02-23 19:11:05,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:11:05,182 INFO L93 Difference]: Finished difference Result 2272 states and 3118 transitions. [2021-02-23 19:11:05,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-23 19:11:05,183 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 221 [2021-02-23 19:11:05,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:11:05,205 INFO L225 Difference]: With dead ends: 2272 [2021-02-23 19:11:05,205 INFO L226 Difference]: Without dead ends: 1800 [2021-02-23 19:11:05,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=241, Invalid=515, Unknown=0, NotChecked=0, Total=756 [2021-02-23 19:11:05,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2021-02-23 19:11:05,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1056. [2021-02-23 19:11:05,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2021-02-23 19:11:05,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1350 transitions. [2021-02-23 19:11:05,563 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1350 transitions. Word has length 221 [2021-02-23 19:11:05,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:11:05,564 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1350 transitions. [2021-02-23 19:11:05,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 19:11:05,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1350 transitions. [2021-02-23 19:11:05,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-02-23 19:11:05,570 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:11:05,571 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, 1] [2021-02-23 19:11:05,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 19:11:05,572 INFO L428 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:11:05,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:11:05,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1615537273, now seen corresponding path program 1 times [2021-02-23 19:11:05,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:11:05,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643529994] [2021-02-23 19:11:05,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:11:05,575 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:11:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:05,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:11:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 19:11:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:11:05,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 19:11:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 19:11:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:11:05,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 19:11:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-23 19:11:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:11:05,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:11:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:11:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 19:11:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 19:11:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 19:11:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:11:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:11:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:11:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:11:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:11:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-02-23 19:11:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:05,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:05,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:05,928 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-02-23 19:11:05,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643529994] [2021-02-23 19:11:05,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:11:05,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 19:11:05,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61262733] [2021-02-23 19:11:05,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 19:11:05,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:11:05,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 19:11:05,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-02-23 19:11:05,931 INFO L87 Difference]: Start difference. First operand 1056 states and 1350 transitions. Second operand 9 states. [2021-02-23 19:11:08,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:11:08,792 INFO L93 Difference]: Finished difference Result 2588 states and 3405 transitions. [2021-02-23 19:11:08,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-23 19:11:08,792 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 221 [2021-02-23 19:11:08,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:11:08,805 INFO L225 Difference]: With dead ends: 2588 [2021-02-23 19:11:08,806 INFO L226 Difference]: Without dead ends: 1585 [2021-02-23 19:11:08,811 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2021-02-23 19:11:08,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2021-02-23 19:11:09,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1048. [2021-02-23 19:11:09,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1048 states. [2021-02-23 19:11:09,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1337 transitions. [2021-02-23 19:11:09,086 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1337 transitions. Word has length 221 [2021-02-23 19:11:09,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:11:09,086 INFO L480 AbstractCegarLoop]: Abstraction has 1048 states and 1337 transitions. [2021-02-23 19:11:09,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 19:11:09,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1337 transitions. [2021-02-23 19:11:09,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-02-23 19:11:09,091 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:11:09,092 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, 1, 1, 1, 1, 1, 1] [2021-02-23 19:11:09,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 19:11:09,092 INFO L428 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:11:09,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:11:09,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1159694162, now seen corresponding path program 1 times [2021-02-23 19:11:09,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:11:09,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [532813321] [2021-02-23 19:11:09,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:11:09,096 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:11:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:09,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:09,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:09,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:09,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:09,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:09,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:11:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:09,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 19:11:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:09,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 19:11:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:09,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 19:11:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:09,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:09,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 19:11:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:09,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-23 19:11:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:09,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:11:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:09,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:11:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:09,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:11:09,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:09,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 19:11:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:09,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 19:11:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:09,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 19:11:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:09,412 WARN L141 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-02-23 19:11:09,413 WARN L147 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size 14 [2021-02-23 19:11:09,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:11:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 19:11:09,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:11:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:09,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:11:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:09,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:11:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:09,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:11:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:09,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-02-23 19:11:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:09,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:09,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:09,581 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-02-23 19:11:09,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [532813321] [2021-02-23 19:11:09,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:11:09,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 19:11:09,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130663268] [2021-02-23 19:11:09,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 19:11:09,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:11:09,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 19:11:09,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-02-23 19:11:09,583 INFO L87 Difference]: Start difference. First operand 1048 states and 1337 transitions. Second operand 10 states. [2021-02-23 19:11:14,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:11:14,732 INFO L93 Difference]: Finished difference Result 4551 states and 6614 transitions. [2021-02-23 19:11:14,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-23 19:11:14,733 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 226 [2021-02-23 19:11:14,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:11:14,762 INFO L225 Difference]: With dead ends: 4551 [2021-02-23 19:11:14,762 INFO L226 Difference]: Without dead ends: 3557 [2021-02-23 19:11:14,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=241, Invalid=515, Unknown=0, NotChecked=0, Total=756 [2021-02-23 19:11:14,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3557 states. [2021-02-23 19:11:15,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3557 to 2133. [2021-02-23 19:11:15,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2133 states. [2021-02-23 19:11:15,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2133 states to 2133 states and 2848 transitions. [2021-02-23 19:11:15,490 INFO L78 Accepts]: Start accepts. Automaton has 2133 states and 2848 transitions. Word has length 226 [2021-02-23 19:11:15,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:11:15,491 INFO L480 AbstractCegarLoop]: Abstraction has 2133 states and 2848 transitions. [2021-02-23 19:11:15,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 19:11:15,492 INFO L276 IsEmpty]: Start isEmpty. Operand 2133 states and 2848 transitions. [2021-02-23 19:11:15,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-02-23 19:11:15,498 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:11:15,498 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:11:15,499 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 19:11:15,499 INFO L428 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:11:15,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:11:15,500 INFO L82 PathProgramCache]: Analyzing trace with hash 430932647, now seen corresponding path program 1 times [2021-02-23 19:11:15,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:11:15,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143956706] [2021-02-23 19:11:15,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:11:15,503 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:11:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:15,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:15,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:15,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:11:15,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:11:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:11:15,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 19:11:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 19:11:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 19:11:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 19:11:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-23 19:11:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:11:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:11:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:11:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 19:11:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 19:11:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 19:11:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:15,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:11:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:11:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:11:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:11:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:11:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 19:11:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:15,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:15,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:15,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:15,883 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-02-23 19:11:15,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143956706] [2021-02-23 19:11:15,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:11:15,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-23 19:11:15,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664317439] [2021-02-23 19:11:15,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 19:11:15,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:11:15,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 19:11:15,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-02-23 19:11:15,886 INFO L87 Difference]: Start difference. First operand 2133 states and 2848 transitions. Second operand 11 states. [2021-02-23 19:11:26,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:11:26,084 INFO L93 Difference]: Finished difference Result 11367 states and 16172 transitions. [2021-02-23 19:11:26,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-23 19:11:26,085 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 231 [2021-02-23 19:11:26,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:11:26,153 INFO L225 Difference]: With dead ends: 11367 [2021-02-23 19:11:26,153 INFO L226 Difference]: Without dead ends: 9286 [2021-02-23 19:11:26,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 917 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=566, Invalid=2296, Unknown=0, NotChecked=0, Total=2862 [2021-02-23 19:11:26,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9286 states. [2021-02-23 19:11:28,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9286 to 7078. [2021-02-23 19:11:28,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7078 states. [2021-02-23 19:11:28,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7078 states to 7078 states and 9447 transitions. [2021-02-23 19:11:28,469 INFO L78 Accepts]: Start accepts. Automaton has 7078 states and 9447 transitions. Word has length 231 [2021-02-23 19:11:28,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:11:28,470 INFO L480 AbstractCegarLoop]: Abstraction has 7078 states and 9447 transitions. [2021-02-23 19:11:28,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 19:11:28,470 INFO L276 IsEmpty]: Start isEmpty. Operand 7078 states and 9447 transitions. [2021-02-23 19:11:28,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-02-23 19:11:28,483 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:11:28,483 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:11:28,483 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 19:11:28,484 INFO L428 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:11:28,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:11:28,484 INFO L82 PathProgramCache]: Analyzing trace with hash -135971754, now seen corresponding path program 1 times [2021-02-23 19:11:28,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:11:28,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834474333] [2021-02-23 19:11:28,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:11:28,487 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:11:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:11:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 19:11:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 19:11:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 19:11:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 19:11:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-23 19:11:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:11:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:11:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:11:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 19:11:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 19:11:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 19:11:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:11:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:11:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 19:11:28,773 WARN L141 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-02-23 19:11:28,774 WARN L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-02-23 19:11:28,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:11:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 19:11:28,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 19:11:28,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 19:11:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 19:11:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-02-23 19:11:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 19:11:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:11:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:11:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 19:11:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 19:11:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:28,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-02-23 19:11:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:28,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:28,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:29,116 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-02-23 19:11:29,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834474333] [2021-02-23 19:11:29,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:11:29,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-23 19:11:29,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539261164] [2021-02-23 19:11:29,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-23 19:11:29,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:11:29,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-23 19:11:29,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-02-23 19:11:29,119 INFO L87 Difference]: Start difference. First operand 7078 states and 9447 transitions. Second operand 12 states. [2021-02-23 19:11:30,313 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-23 19:11:30,429 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-02-23 19:11:35,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:11:35,346 INFO L93 Difference]: Finished difference Result 16747 states and 23456 transitions. [2021-02-23 19:11:35,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-23 19:11:35,346 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 287 [2021-02-23 19:11:35,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:11:35,415 INFO L225 Difference]: With dead ends: 16747 [2021-02-23 19:11:35,415 INFO L226 Difference]: Without dead ends: 9722 [2021-02-23 19:11:35,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=224, Invalid=532, Unknown=0, NotChecked=0, Total=756 [2021-02-23 19:11:35,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9722 states. [2021-02-23 19:11:37,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9722 to 7280. [2021-02-23 19:11:37,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7280 states. [2021-02-23 19:11:37,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7280 states to 7280 states and 9628 transitions. [2021-02-23 19:11:37,618 INFO L78 Accepts]: Start accepts. Automaton has 7280 states and 9628 transitions. Word has length 287 [2021-02-23 19:11:37,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:11:37,618 INFO L480 AbstractCegarLoop]: Abstraction has 7280 states and 9628 transitions. [2021-02-23 19:11:37,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-23 19:11:37,618 INFO L276 IsEmpty]: Start isEmpty. Operand 7280 states and 9628 transitions. [2021-02-23 19:11:37,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-02-23 19:11:37,639 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:11:37,640 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:11:37,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 19:11:37,640 INFO L428 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:11:37,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:11:37,641 INFO L82 PathProgramCache]: Analyzing trace with hash 260210443, now seen corresponding path program 1 times [2021-02-23 19:11:37,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:11:37,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207373693] [2021-02-23 19:11:37,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:11:37,644 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:11:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:37,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:37,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:37,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:37,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:37,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:37,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:11:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:37,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:37,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:37,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 19:11:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:37,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:37,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 19:11:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:37,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:37,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 19:11:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:37,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:37,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 19:11:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:37,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:37,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-23 19:11:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:37,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:37,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:11:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:37,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:37,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:11:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:37,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:37,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:11:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:37,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:37,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 19:11:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:37,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:37,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 19:11:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:37,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:37,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 19:11:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:37,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:37,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:11:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:37,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:37,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:11:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:37,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:37,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:11:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:37,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:37,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:11:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:37,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:37,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:11:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:37,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:37,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-02-23 19:11:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:38,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:38,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 19:11:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:38,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:11:38,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:11:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:38,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:11:38,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:11:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:38,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 19:11:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:38,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:11:38,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-02-23 19:11:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:38,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-02-23 19:11:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:38,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:38,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:38,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:11:38,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207373693] [2021-02-23 19:11:38,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:11:38,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-23 19:11:38,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638397648] [2021-02-23 19:11:38,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 19:11:38,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:11:38,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 19:11:38,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-02-23 19:11:38,197 INFO L87 Difference]: Start difference. First operand 7280 states and 9628 transitions. Second operand 11 states. [2021-02-23 19:11:46,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:11:46,601 INFO L93 Difference]: Finished difference Result 21179 states and 29882 transitions. [2021-02-23 19:11:46,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-02-23 19:11:46,602 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 287 [2021-02-23 19:11:46,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:11:46,681 INFO L225 Difference]: With dead ends: 21179 [2021-02-23 19:11:46,681 INFO L226 Difference]: Without dead ends: 13952 [2021-02-23 19:11:46,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-02-23 19:11:46,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13952 states. [2021-02-23 19:11:50,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13952 to 11030. [2021-02-23 19:11:50,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11030 states. [2021-02-23 19:11:50,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11030 states to 11030 states and 14338 transitions. [2021-02-23 19:11:50,195 INFO L78 Accepts]: Start accepts. Automaton has 11030 states and 14338 transitions. Word has length 287 [2021-02-23 19:11:50,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:11:50,196 INFO L480 AbstractCegarLoop]: Abstraction has 11030 states and 14338 transitions. [2021-02-23 19:11:50,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 19:11:50,196 INFO L276 IsEmpty]: Start isEmpty. Operand 11030 states and 14338 transitions. [2021-02-23 19:11:50,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-02-23 19:11:50,210 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:11:50,211 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:11:50,211 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 19:11:50,212 INFO L428 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:11:50,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:11:50,212 INFO L82 PathProgramCache]: Analyzing trace with hash -346049346, now seen corresponding path program 1 times [2021-02-23 19:11:50,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:11:50,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1439088626] [2021-02-23 19:11:50,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:11:50,215 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:11:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:50,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:50,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:50,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:50,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:11:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:50,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 19:11:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 19:11:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 19:11:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 19:11:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-23 19:11:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:11:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:11:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:11:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 19:11:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 19:11:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 19:11:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:11:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:11:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:11:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:11:50,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:11:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 19:11:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:11:50,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 19:11:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:11:50,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:11:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:11:50,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:11:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 19:11:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-02-23 19:11:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:11:50,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-02-23 19:11:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:11:50,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:50,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:11:50,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:11:50,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1439088626] [2021-02-23 19:11:50,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:11:50,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-23 19:11:50,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130147943] [2021-02-23 19:11:50,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 19:11:50,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:11:50,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 19:11:50,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-02-23 19:11:50,640 INFO L87 Difference]: Start difference. First operand 11030 states and 14338 transitions. Second operand 11 states. [2021-02-23 19:12:01,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:12:01,693 INFO L93 Difference]: Finished difference Result 31903 states and 44425 transitions. [2021-02-23 19:12:01,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-02-23 19:12:01,695 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 287 [2021-02-23 19:12:01,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:12:01,809 INFO L225 Difference]: With dead ends: 31903 [2021-02-23 19:12:01,809 INFO L226 Difference]: Without dead ends: 20926 [2021-02-23 19:12:01,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-02-23 19:12:01,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20926 states. [2021-02-23 19:12:06,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20926 to 16116. [2021-02-23 19:12:06,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16116 states. [2021-02-23 19:12:06,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16116 states to 16116 states and 20622 transitions. [2021-02-23 19:12:06,716 INFO L78 Accepts]: Start accepts. Automaton has 16116 states and 20622 transitions. Word has length 287 [2021-02-23 19:12:06,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:12:06,717 INFO L480 AbstractCegarLoop]: Abstraction has 16116 states and 20622 transitions. [2021-02-23 19:12:06,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 19:12:06,718 INFO L276 IsEmpty]: Start isEmpty. Operand 16116 states and 20622 transitions. [2021-02-23 19:12:06,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2021-02-23 19:12:06,742 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:12:06,742 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:12:06,742 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 19:12:06,743 INFO L428 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:12:06,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:12:06,743 INFO L82 PathProgramCache]: Analyzing trace with hash -2128179390, now seen corresponding path program 1 times [2021-02-23 19:12:06,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:12:06,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [194236354] [2021-02-23 19:12:06,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:12:06,746 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:12:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:06,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:06,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:06,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:06,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:06,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:12:06,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:06,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:12:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:06,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:06,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:12:06,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 19:12:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:06,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:06,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 19:12:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:06,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:06,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 19:12:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:06,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:06,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 19:12:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:06,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:06,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-23 19:12:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:06,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:06,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:12:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:06,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:06,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:12:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:06,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:06,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:12:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:06,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:06,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 19:12:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:06,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:06,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 19:12:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:06,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:06,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 19:12:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:06,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:06,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:06,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:12:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:07,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:07,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:07,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:12:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:07,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:07,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:07,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:12:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:07,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:07,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:07,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:12:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:07,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:07,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:07,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:12:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:07,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:07,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:07,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 19:12:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:07,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:07,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:07,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:07,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:07,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-02-23 19:12:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:07,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:07,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:07,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-02-23 19:12:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:07,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:07,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:07,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 19:12:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:07,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:07,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:07,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:12:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:07,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:07,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:07,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:12:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:07,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:07,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:07,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 19:12:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:07,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:07,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:07,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-02-23 19:12:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:07,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:07,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:07,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-02-23 19:12:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:07,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:07,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:07,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:12:07,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [194236354] [2021-02-23 19:12:07,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:12:07,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-23 19:12:07,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369925156] [2021-02-23 19:12:07,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 19:12:07,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:12:07,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 19:12:07,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-02-23 19:12:07,189 INFO L87 Difference]: Start difference. First operand 16116 states and 20622 transitions. Second operand 11 states. [2021-02-23 19:12:21,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:12:21,458 INFO L93 Difference]: Finished difference Result 32631 states and 42911 transitions. [2021-02-23 19:12:21,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-02-23 19:12:21,459 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 322 [2021-02-23 19:12:21,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:12:21,554 INFO L225 Difference]: With dead ends: 32631 [2021-02-23 19:12:21,554 INFO L226 Difference]: Without dead ends: 21857 [2021-02-23 19:12:21,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1162 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=808, Invalid=2614, Unknown=0, NotChecked=0, Total=3422 [2021-02-23 19:12:21,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21857 states. [2021-02-23 19:12:26,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21857 to 16760. [2021-02-23 19:12:26,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16760 states. [2021-02-23 19:12:26,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16760 states to 16760 states and 21062 transitions. [2021-02-23 19:12:26,212 INFO L78 Accepts]: Start accepts. Automaton has 16760 states and 21062 transitions. Word has length 322 [2021-02-23 19:12:26,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:12:26,213 INFO L480 AbstractCegarLoop]: Abstraction has 16760 states and 21062 transitions. [2021-02-23 19:12:26,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 19:12:26,213 INFO L276 IsEmpty]: Start isEmpty. Operand 16760 states and 21062 transitions. [2021-02-23 19:12:26,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2021-02-23 19:12:26,235 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:12:26,236 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:12:26,236 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 19:12:26,236 INFO L428 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:12:26,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:12:26,237 INFO L82 PathProgramCache]: Analyzing trace with hash -635037116, now seen corresponding path program 1 times [2021-02-23 19:12:26,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:12:26,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1907662777] [2021-02-23 19:12:26,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:12:26,240 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:12:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:26,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:26,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:26,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:12:26,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:12:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:12:26,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 19:12:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 19:12:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 19:12:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 19:12:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-23 19:12:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:12:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:12:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:12:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 19:12:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 19:12:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 19:12:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:12:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:12:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:12:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:12:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:12:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-02-23 19:12:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:26,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-02-23 19:12:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:26,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-02-23 19:12:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 19:12:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:12:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:12:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 19:12:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 19:12:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-02-23 19:12:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:26,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:26,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:26,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:12:26,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1907662777] [2021-02-23 19:12:26,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:12:26,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-23 19:12:26,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608790919] [2021-02-23 19:12:26,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-23 19:12:26,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:12:26,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-23 19:12:26,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-02-23 19:12:26,714 INFO L87 Difference]: Start difference. First operand 16760 states and 21062 transitions. Second operand 12 states. [2021-02-23 19:12:28,233 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-02-23 19:12:40,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:12:40,951 INFO L93 Difference]: Finished difference Result 32099 states and 41162 transitions. [2021-02-23 19:12:40,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-02-23 19:12:40,951 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 322 [2021-02-23 19:12:40,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:12:41,058 INFO L225 Difference]: With dead ends: 32099 [2021-02-23 19:12:41,058 INFO L226 Difference]: Without dead ends: 20691 [2021-02-23 19:12:41,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1525 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=810, Invalid=3612, Unknown=0, NotChecked=0, Total=4422 [2021-02-23 19:12:41,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20691 states. [2021-02-23 19:12:45,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20691 to 17064. [2021-02-23 19:12:45,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17064 states. [2021-02-23 19:12:45,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17064 states to 17064 states and 20930 transitions. [2021-02-23 19:12:45,800 INFO L78 Accepts]: Start accepts. Automaton has 17064 states and 20930 transitions. Word has length 322 [2021-02-23 19:12:45,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:12:45,801 INFO L480 AbstractCegarLoop]: Abstraction has 17064 states and 20930 transitions. [2021-02-23 19:12:45,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-23 19:12:45,802 INFO L276 IsEmpty]: Start isEmpty. Operand 17064 states and 20930 transitions. [2021-02-23 19:12:45,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-02-23 19:12:45,823 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:12:45,823 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:12:45,823 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-23 19:12:45,824 INFO L428 AbstractCegarLoop]: === Iteration 13 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:12:45,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:12:45,824 INFO L82 PathProgramCache]: Analyzing trace with hash 142560896, now seen corresponding path program 1 times [2021-02-23 19:12:45,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:12:45,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1020770857] [2021-02-23 19:12:45,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:12:45,827 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:12:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:45,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:45,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:45,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:45,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:45,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:45,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:45,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:45,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:45,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:45,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:12:45,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:45,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:12:45,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:45,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:45,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:12:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:45,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:45,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:45,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:45,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:45,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:45,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:46,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 19:12:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 19:12:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 19:12:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 19:12:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 19:12:46,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-23 19:12:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:12:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:12:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:12:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 19:12:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:12:46,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 19:12:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-23 19:12:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-23 19:12:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-02-23 19:12:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:12:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:12:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:12:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:12:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-02-23 19:12:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-02-23 19:12:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:12:46,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 19:12:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:12:46,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:12:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:12:46,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:12:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:12:46,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 19:12:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 19:12:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-02-23 19:12:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:12:46,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:46,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:12:46,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:12:46,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1020770857] [2021-02-23 19:12:46,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:12:46,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-23 19:12:46,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068890323] [2021-02-23 19:12:46,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-23 19:12:46,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:12:46,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-23 19:12:46,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-02-23 19:12:46,385 INFO L87 Difference]: Start difference. First operand 17064 states and 20930 transitions. Second operand 13 states. [2021-02-23 19:12:46,782 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2021-02-23 19:12:54,699 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-02-23 19:13:06,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:13:06,719 INFO L93 Difference]: Finished difference Result 52747 states and 68366 transitions. [2021-02-23 19:13:06,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-23 19:13:06,719 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 329 [2021-02-23 19:13:06,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:13:06,892 INFO L225 Difference]: With dead ends: 52747 [2021-02-23 19:13:06,893 INFO L226 Difference]: Without dead ends: 35735 [2021-02-23 19:13:06,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2240 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1196, Invalid=5284, Unknown=0, NotChecked=0, Total=6480 [2021-02-23 19:13:07,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35735 states. [2021-02-23 19:13:14,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35735 to 27513. [2021-02-23 19:13:14,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27513 states. [2021-02-23 19:13:14,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27513 states to 27513 states and 33097 transitions. [2021-02-23 19:13:14,831 INFO L78 Accepts]: Start accepts. Automaton has 27513 states and 33097 transitions. Word has length 329 [2021-02-23 19:13:14,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:13:14,832 INFO L480 AbstractCegarLoop]: Abstraction has 27513 states and 33097 transitions. [2021-02-23 19:13:14,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-23 19:13:14,832 INFO L276 IsEmpty]: Start isEmpty. Operand 27513 states and 33097 transitions. [2021-02-23 19:13:14,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-02-23 19:13:14,846 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:13:14,847 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:13:14,847 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-23 19:13:14,847 INFO L428 AbstractCegarLoop]: === Iteration 14 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:13:14,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:13:14,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1799025417, now seen corresponding path program 1 times [2021-02-23 19:13:14,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:13:14,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055171560] [2021-02-23 19:13:14,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:13:14,851 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:13:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:14,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:14,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:13:14,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:14,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:13:14,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:14,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:13:14,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:14,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:13:14,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:14,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:13:14,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:14,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:13:14,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:14,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:14,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:13:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:13:15,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:13:15,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 19:13:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 19:13:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 19:13:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 19:13:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 19:13:15,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-23 19:13:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:13:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:13:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:13:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 19:13:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:13:15,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 19:13:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-23 19:13:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-23 19:13:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-02-23 19:13:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:13:15,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:13:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:13:15,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:13:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:13:15,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:13:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:13:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:13:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:13:15,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-02-23 19:13:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 19:13:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:13:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:13:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 19:13:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-02-23 19:13:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-02-23 19:13:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:13:15,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:15,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:13:15,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:13:15,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055171560] [2021-02-23 19:13:15,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:13:15,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-23 19:13:15,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479970089] [2021-02-23 19:13:15,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-23 19:13:15,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:13:15,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-23 19:13:15,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-02-23 19:13:15,373 INFO L87 Difference]: Start difference. First operand 27513 states and 33097 transitions. Second operand 13 states. [2021-02-23 19:13:15,784 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2021-02-23 19:13:20,870 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-02-23 19:13:46,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:13:46,068 INFO L93 Difference]: Finished difference Result 92426 states and 118463 transitions. [2021-02-23 19:13:46,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-02-23 19:13:46,069 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 328 [2021-02-23 19:13:46,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:13:46,588 INFO L225 Difference]: With dead ends: 92426 [2021-02-23 19:13:46,588 INFO L226 Difference]: Without dead ends: 64965 [2021-02-23 19:13:46,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2640 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1293, Invalid=6189, Unknown=0, NotChecked=0, Total=7482 [2021-02-23 19:13:47,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64965 states. [2021-02-23 19:14:02,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64965 to 53212. [2021-02-23 19:14:02,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53212 states. [2021-02-23 19:14:03,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53212 states to 53212 states and 63247 transitions. [2021-02-23 19:14:03,039 INFO L78 Accepts]: Start accepts. Automaton has 53212 states and 63247 transitions. Word has length 328 [2021-02-23 19:14:03,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:14:03,040 INFO L480 AbstractCegarLoop]: Abstraction has 53212 states and 63247 transitions. [2021-02-23 19:14:03,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-23 19:14:03,040 INFO L276 IsEmpty]: Start isEmpty. Operand 53212 states and 63247 transitions. [2021-02-23 19:14:03,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-02-23 19:14:03,054 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:14:03,054 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:14:03,054 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-23 19:14:03,055 INFO L428 AbstractCegarLoop]: === Iteration 15 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:14:03,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:14:03,055 INFO L82 PathProgramCache]: Analyzing trace with hash 154057495, now seen corresponding path program 1 times [2021-02-23 19:14:03,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:14:03,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773784480] [2021-02-23 19:14:03,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:14:03,059 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:14:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,379 WARN L202 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-23 19:14:03,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:14:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 19:14:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 19:14:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 19:14:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 19:14:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-23 19:14:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:14:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:14:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:14:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 19:14:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 19:14:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-23 19:14:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-23 19:14:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-02-23 19:14:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:14:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:14:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 19:14:03,555 WARN L141 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-02-23 19:14:03,556 WARN L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-02-23 19:14:03,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:14:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:14:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:14:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 19:14:03,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 19:14:03,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-02-23 19:14:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 19:14:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:14:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:14:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 19:14:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-02-23 19:14:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:03,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-02-23 19:14:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:03,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:04,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:14:04,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773784480] [2021-02-23 19:14:04,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:14:04,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-23 19:14:04,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251349159] [2021-02-23 19:14:04,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-23 19:14:04,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:14:04,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-23 19:14:04,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-02-23 19:14:04,021 INFO L87 Difference]: Start difference. First operand 53212 states and 63247 transitions. Second operand 12 states. [2021-02-23 19:14:04,875 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-02-23 19:14:04,997 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-02-23 19:14:05,298 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-23 19:14:27,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:14:27,462 INFO L93 Difference]: Finished difference Result 114779 states and 139704 transitions. [2021-02-23 19:14:27,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-23 19:14:27,462 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 328 [2021-02-23 19:14:27,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:14:27,840 INFO L225 Difference]: With dead ends: 114779 [2021-02-23 19:14:27,840 INFO L226 Difference]: Without dead ends: 61620 [2021-02-23 19:14:28,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=242, Invalid=628, Unknown=0, NotChecked=0, Total=870 [2021-02-23 19:14:28,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61620 states. [2021-02-23 19:14:43,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61620 to 51812. [2021-02-23 19:14:43,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51812 states. [2021-02-23 19:14:43,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51812 states to 51812 states and 60527 transitions. [2021-02-23 19:14:43,773 INFO L78 Accepts]: Start accepts. Automaton has 51812 states and 60527 transitions. Word has length 328 [2021-02-23 19:14:43,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:14:43,774 INFO L480 AbstractCegarLoop]: Abstraction has 51812 states and 60527 transitions. [2021-02-23 19:14:43,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-23 19:14:43,774 INFO L276 IsEmpty]: Start isEmpty. Operand 51812 states and 60527 transitions. [2021-02-23 19:14:43,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2021-02-23 19:14:43,798 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:14:43,798 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:14:43,798 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-23 19:14:43,799 INFO L428 AbstractCegarLoop]: === Iteration 16 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:14:43,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:14:43,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1987578412, now seen corresponding path program 1 times [2021-02-23 19:14:43,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:14:43,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190172268] [2021-02-23 19:14:43,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:14:43,802 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:14:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:43,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:43,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:14:43,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:43,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:14:43,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:43,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:14:43,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:43,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:43,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:43,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:43,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:14:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:43,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:43,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:43,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:43,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:14:43,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 19:14:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:43,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:43,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:43,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 19:14:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:43,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:43,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:43,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 19:14:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:43,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:43,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 19:14:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-23 19:14:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:14:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:14:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:14:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 19:14:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-02-23 19:14:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:14:44,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:14:44,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:14:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 19:14:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-23 19:14:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-02-23 19:14:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:14:44,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:14:44,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-02-23 19:14:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-02-23 19:14:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-23 19:14:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:14:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:14:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-02-23 19:14:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-02-23 19:14:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-02-23 19:14:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-02-23 19:14:44,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:14:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-02-23 19:14:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-02-23 19:14:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:14:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:14:44,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:14:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:14:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 19:14:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2021-02-23 19:14:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 19:14:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:14:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:14:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:14:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 19:14:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2021-02-23 19:14:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 19:14:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:14:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 19:14:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 19:14:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 19:14:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2021-02-23 19:14:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:14:44,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:44,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:44,531 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-02-23 19:14:44,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190172268] [2021-02-23 19:14:44,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:14:44,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-02-23 19:14:44,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872883858] [2021-02-23 19:14:44,532 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-23 19:14:44,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:14:44,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-23 19:14:44,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-02-23 19:14:44,533 INFO L87 Difference]: Start difference. First operand 51812 states and 60527 transitions. Second operand 15 states. [2021-02-23 19:14:54,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:14:54,156 INFO L93 Difference]: Finished difference Result 63496 states and 74163 transitions. [2021-02-23 19:14:54,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-23 19:14:54,157 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 510 [2021-02-23 19:14:54,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:14:54,220 INFO L225 Difference]: With dead ends: 63496 [2021-02-23 19:14:54,220 INFO L226 Difference]: Without dead ends: 11738 [2021-02-23 19:14:54,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=754, Invalid=2326, Unknown=0, NotChecked=0, Total=3080 [2021-02-23 19:14:54,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11738 states. [2021-02-23 19:14:57,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11738 to 9747. [2021-02-23 19:14:57,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9747 states. [2021-02-23 19:14:57,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9747 states to 9747 states and 10990 transitions. [2021-02-23 19:14:57,248 INFO L78 Accepts]: Start accepts. Automaton has 9747 states and 10990 transitions. Word has length 510 [2021-02-23 19:14:57,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:14:57,248 INFO L480 AbstractCegarLoop]: Abstraction has 9747 states and 10990 transitions. [2021-02-23 19:14:57,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-02-23 19:14:57,249 INFO L276 IsEmpty]: Start isEmpty. Operand 9747 states and 10990 transitions. [2021-02-23 19:14:57,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2021-02-23 19:14:57,253 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:14:57,254 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:14:57,254 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-23 19:14:57,254 INFO L428 AbstractCegarLoop]: === Iteration 17 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:14:57,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:14:57,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1362819294, now seen corresponding path program 1 times [2021-02-23 19:14:57,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:14:57,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2131895946] [2021-02-23 19:14:57,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:14:57,373 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-02-23 19:14:57,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:57,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:57,724 WARN L141 QuantifierPusher]: treesize reduction 12, result has 96.1 percent of original size [2021-02-23 19:14:57,778 WARN L147 QuantifierPusher]: treesize reduction 12, result has 96.1 percent of original size 295 [2021-02-23 19:14:57,979 WARN L141 QuantifierPusher]: treesize reduction 12, result has 96.0 percent of original size [2021-02-23 19:14:57,986 WARN L147 QuantifierPusher]: treesize reduction 12, result has 96.0 percent of original size 289 [2021-02-23 19:14:58,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,373 WARN L141 QuantifierPusher]: treesize reduction 282, result has 51.1 percent of original size [2021-02-23 19:14:58,379 WARN L147 QuantifierPusher]: treesize reduction 282, result has 51.1 percent of original size 295 [2021-02-23 19:14:58,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,622 WARN L141 QuantifierPusher]: treesize reduction 12, result has 96.2 percent of original size [2021-02-23 19:14:58,628 WARN L147 QuantifierPusher]: treesize reduction 12, result has 96.2 percent of original size 307 [2021-02-23 19:14:58,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,803 WARN L141 QuantifierPusher]: treesize reduction 294, result has 51.1 percent of original size [2021-02-23 19:14:58,809 WARN L147 QuantifierPusher]: treesize reduction 294, result has 51.1 percent of original size 307 [2021-02-23 19:14:58,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:58,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:58,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:59,120 WARN L141 QuantifierPusher]: treesize reduction 12, result has 96.2 percent of original size [2021-02-23 19:14:59,126 WARN L147 QuantifierPusher]: treesize reduction 12, result has 96.2 percent of original size 301 [2021-02-23 19:14:59,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:59,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:59,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:59,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:59,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:59,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:59,350 WARN L141 QuantifierPusher]: treesize reduction 12, result has 96.1 percent of original size [2021-02-23 19:14:59,356 WARN L147 QuantifierPusher]: treesize reduction 12, result has 96.1 percent of original size 295 [2021-02-23 19:14:59,501 WARN L141 QuantifierPusher]: treesize reduction 282, result has 51.1 percent of original size [2021-02-23 19:14:59,506 WARN L147 QuantifierPusher]: treesize reduction 282, result has 51.1 percent of original size 295 [2021-02-23 19:14:59,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:59,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:59,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:59,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:59,683 WARN L141 QuantifierPusher]: treesize reduction 12, result has 96.2 percent of original size [2021-02-23 19:14:59,688 WARN L147 QuantifierPusher]: treesize reduction 12, result has 96.2 percent of original size 301 [2021-02-23 19:14:59,926 WARN L141 QuantifierPusher]: treesize reduction 12, result has 96.2 percent of original size [2021-02-23 19:14:59,931 WARN L147 QuantifierPusher]: treesize reduction 12, result has 96.2 percent of original size 301 [2021-02-23 19:14:59,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:59,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:59,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:59,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:14:59,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:59,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:00,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:15:00,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:00,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:15:00,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:00,171 WARN L141 QuantifierPusher]: treesize reduction 12, result has 96.1 percent of original size [2021-02-23 19:15:00,176 WARN L147 QuantifierPusher]: treesize reduction 12, result has 96.1 percent of original size 295 [2021-02-23 19:15:00,310 WARN L141 QuantifierPusher]: treesize reduction 12, result has 96.2 percent of original size [2021-02-23 19:15:00,315 WARN L147 QuantifierPusher]: treesize reduction 12, result has 96.2 percent of original size 301 [2021-02-23 19:15:00,455 WARN L141 QuantifierPusher]: treesize reduction 288, result has 51.1 percent of original size [2021-02-23 19:15:00,460 WARN L147 QuantifierPusher]: treesize reduction 288, result has 51.1 percent of original size 301 [2021-02-23 19:15:00,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:15:00,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:00,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:15:00,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:00,648 WARN L141 QuantifierPusher]: treesize reduction 12, result has 96.0 percent of original size [2021-02-23 19:15:00,653 WARN L147 QuantifierPusher]: treesize reduction 12, result has 96.0 percent of original size 289 [2021-02-23 19:15:00,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:15:00,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:00,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:15:00,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:00,828 WARN L141 QuantifierPusher]: treesize reduction 12, result has 96.1 percent of original size [2021-02-23 19:15:00,833 WARN L147 QuantifierPusher]: treesize reduction 12, result has 96.1 percent of original size 295 [2021-02-23 19:15:00,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:15:00,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:00,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:15:00,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:00,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:15:00,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:00,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:15:00,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:01,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:15:01,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:01,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:15:01,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:01,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:15:01,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:01,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:15:01,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:01,223 WARN L141 QuantifierPusher]: treesize reduction 12, result has 96.2 percent of original size [2021-02-23 19:15:01,228 WARN L147 QuantifierPusher]: treesize reduction 12, result has 96.2 percent of original size 301 [2021-02-23 19:15:01,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:15:01,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:01,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:15:01,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:01,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:15:01,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:01,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:15:01,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:15:01,303 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 19:15:01,306 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-23 19:15:01,306 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_master_#t~nondet7_15| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateFactory.newSPredicate(PredicateFactory.java:60) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.generateMetaTrace(AcceleratedInterpolationCore.java:359) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:225) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-23 19:15:01,311 INFO L168 Benchmark]: Toolchain (without parser) took 253788.17 ms. Allocated memory was 161.5 MB in the beginning and 6.7 GB in the end (delta: 6.5 GB). Free memory was 136.3 MB in the beginning and 4.5 GB in the end (delta: -4.3 GB). Peak memory consumption was 3.0 GB. Max. memory is 8.0 GB. [2021-02-23 19:15:01,311 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 161.5 MB. Free memory is still 134.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 19:15:01,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 565.80 ms. Allocated memory is still 161.5 MB. Free memory was 135.2 MB in the beginning and 121.4 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-23 19:15:01,311 INFO L168 Benchmark]: Boogie Preprocessor took 65.99 ms. Allocated memory is still 161.5 MB. Free memory was 121.4 MB in the beginning and 119.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 19:15:01,311 INFO L168 Benchmark]: RCFGBuilder took 882.46 ms. Allocated memory is still 161.5 MB. Free memory was 119.0 MB in the beginning and 109.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 8.0 GB. [2021-02-23 19:15:01,312 INFO L168 Benchmark]: TraceAbstraction took 252250.00 ms. Allocated memory was 161.5 MB in the beginning and 6.7 GB in the end (delta: 6.5 GB). Free memory was 108.7 MB in the beginning and 4.5 GB in the end (delta: -4.4 GB). Peak memory consumption was 2.9 GB. Max. memory is 8.0 GB. [2021-02-23 19:15:01,312 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 161.5 MB. Free memory is still 134.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 565.80 ms. Allocated memory is still 161.5 MB. Free memory was 135.2 MB in the beginning and 121.4 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 65.99 ms. Allocated memory is still 161.5 MB. Free memory was 121.4 MB in the beginning and 119.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 882.46 ms. Allocated memory is still 161.5 MB. Free memory was 119.0 MB in the beginning and 109.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 252250.00 ms. Allocated memory was 161.5 MB in the beginning and 6.7 GB in the end (delta: 6.5 GB). Free memory was 108.7 MB in the beginning and 4.5 GB in the end (delta: -4.4 GB). Peak memory consumption was 2.9 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_master_#t~nondet7_15| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_master_#t~nondet7_15|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...