/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/systemc/token_ring.01.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:25:11,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:25:11,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:25:11,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 02:25:11,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 02:25:11,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 02:25:11,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 02:25:11,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 02:25:11,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 02:25:11,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 02:25:11,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 02:25:11,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 02:25:11,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:25:11,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:25:11,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:25:11,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:25:11,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:25:11,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:25:11,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:25:11,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:25:11,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:25:11,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:25:11,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:25:11,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:25:11,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 02:25:11,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:25:11,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:25:11,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:25:11,970 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:25:11,996 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:25:11,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:25:12,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:25:12,002 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:25:12,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:25:12,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:25:12,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:25:12,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:25:12,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:25:12,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:25:12,004 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:25:12,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:25:12,004 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:25:12,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:25:12,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:25:12,005 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:25:12,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:25:12,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:25:12,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:25:12,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:25:12,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:25:12,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:25:12,007 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:25:12,007 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:25:12,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:25:12,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:25:12,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:25:12,495 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:25:12,496 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:25:12,497 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.01.cil-2.c [2021-02-22 02:25:12,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ae16d01e/17c0952337b441ce863dda6967521474/FLAGc03e3bad8 [2021-02-22 02:25:13,219 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:25:13,219 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.01.cil-2.c [2021-02-22 02:25:13,235 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ae16d01e/17c0952337b441ce863dda6967521474/FLAGc03e3bad8 [2021-02-22 02:25:13,576 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ae16d01e/17c0952337b441ce863dda6967521474 [2021-02-22 02:25:13,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:25:13,595 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:25:13,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:25:13,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:25:13,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:25:13,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:25:13" (1/1) ... [2021-02-22 02:25:13,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bdccdc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:13, skipping insertion in model container [2021-02-22 02:25:13,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:25:13" (1/1) ... [2021-02-22 02:25:13,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:25:13,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:25:13,802 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.01.cil-2.c[366,379] [2021-02-22 02:25:13,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:25:13,870 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:25:13,890 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.01.cil-2.c[366,379] [2021-02-22 02:25:13,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:25:14,009 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:25:14,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:14 WrapperNode [2021-02-22 02:25:14,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:25:14,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:25:14,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:25:14,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:25:14,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:14" (1/1) ... [2021-02-22 02:25:14,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:14" (1/1) ... [2021-02-22 02:25:14,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:14" (1/1) ... [2021-02-22 02:25:14,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:14" (1/1) ... [2021-02-22 02:25:14,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:14" (1/1) ... [2021-02-22 02:25:14,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:14" (1/1) ... [2021-02-22 02:25:14,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:14" (1/1) ... [2021-02-22 02:25:14,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:25:14,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:25:14,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:25:14,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:25:14,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:14" (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 [2021-02-22 02:25:14,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:25:14,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:25:14,205 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:25:14,206 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-02-22 02:25:14,206 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2021-02-22 02:25:14,206 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2021-02-22 02:25:14,207 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2021-02-22 02:25:14,207 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2021-02-22 02:25:14,207 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-02-22 02:25:14,208 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2021-02-22 02:25:14,208 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-02-22 02:25:14,208 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2021-02-22 02:25:14,208 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-02-22 02:25:14,209 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-02-22 02:25:14,209 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-02-22 02:25:14,209 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-02-22 02:25:14,210 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2021-02-22 02:25:14,210 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2021-02-22 02:25:14,210 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2021-02-22 02:25:14,210 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2021-02-22 02:25:14,210 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2021-02-22 02:25:14,211 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:25:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:25:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:25:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:25:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:25:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-02-22 02:25:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2021-02-22 02:25:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2021-02-22 02:25:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-02-22 02:25:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:25:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure master [2021-02-22 02:25:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2021-02-22 02:25:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-02-22 02:25:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2021-02-22 02:25:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-02-22 02:25:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2021-02-22 02:25:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-02-22 02:25:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-02-22 02:25:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-02-22 02:25:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2021-02-22 02:25:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2021-02-22 02:25:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2021-02-22 02:25:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2021-02-22 02:25:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2021-02-22 02:25:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:25:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:25:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:25:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:25:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:25:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:25:14,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:25:15,236 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:25:15,237 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-02-22 02:25:15,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:25:15 BoogieIcfgContainer [2021-02-22 02:25:15,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:25:15,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:25:15,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:25:15,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:25:15,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:25:13" (1/3) ... [2021-02-22 02:25:15,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735ae6d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:25:15, skipping insertion in model container [2021-02-22 02:25:15,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:25:14" (2/3) ... [2021-02-22 02:25:15,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735ae6d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:25:15, skipping insertion in model container [2021-02-22 02:25:15,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:25:15" (3/3) ... [2021-02-22 02:25:15,251 INFO L111 eAbstractionObserver]: Analyzing ICFG token_ring.01.cil-2.c [2021-02-22 02:25:15,259 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:25:15,267 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:25:15,294 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:25:15,322 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:25:15,322 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:25:15,322 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:25:15,323 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:25:15,323 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:25:15,323 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:25:15,323 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:25:15,323 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:25:15,347 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2021-02-22 02:25:15,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-02-22 02:25:15,368 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:25:15,369 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] [2021-02-22 02:25:15,370 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:25:15,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:25:15,379 INFO L82 PathProgramCache]: Analyzing trace with hash -925240097, now seen corresponding path program 1 times [2021-02-22 02:25:15,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:25:15,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [403103396] [2021-02-22 02:25:15,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:25:15,486 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:25:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:15,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:15,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:15,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:15,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:15,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:15,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:15,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:15,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:15,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:15,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:15,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:15,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:15,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:16,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:16,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:16,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:16,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:16,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:25:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:16,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:16,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:16,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-22 02:25:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:16,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:16,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:16,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-22 02:25:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:16,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:16,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:16,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-22 02:25:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:16,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:16,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:16,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-22 02:25:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:16,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:16,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:16,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:16,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:16,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:16,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-22 02:25:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:16,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:16,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:16,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-22 02:25:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:16,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:16,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:16,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 02:25:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:16,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:16,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:16,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:25:16,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [403103396] [2021-02-22 02:25:16,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:25:16,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-22 02:25:16,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615593730] [2021-02-22 02:25:16,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-22 02:25:16,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:25:16,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-22 02:25:16,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-22 02:25:16,349 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 7 states. [2021-02-22 02:25:18,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:25:18,825 INFO L93 Difference]: Finished difference Result 803 states and 1076 transitions. [2021-02-22 02:25:18,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-22 02:25:18,827 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2021-02-22 02:25:18,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:25:18,849 INFO L225 Difference]: With dead ends: 803 [2021-02-22 02:25:18,850 INFO L226 Difference]: Without dead ends: 592 [2021-02-22 02:25:18,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2021-02-22 02:25:18,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2021-02-22 02:25:19,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 411. [2021-02-22 02:25:19,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2021-02-22 02:25:19,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 500 transitions. [2021-02-22 02:25:19,088 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 500 transitions. Word has length 118 [2021-02-22 02:25:19,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:25:19,090 INFO L480 AbstractCegarLoop]: Abstraction has 411 states and 500 transitions. [2021-02-22 02:25:19,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-22 02:25:19,090 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 500 transitions. [2021-02-22 02:25:19,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-02-22 02:25:19,110 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:25:19,111 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:25:19,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:25:19,111 INFO L428 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:25:19,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:25:19,112 INFO L82 PathProgramCache]: Analyzing trace with hash -283101501, now seen corresponding path program 1 times [2021-02-22 02:25:19,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:25:19,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1225925169] [2021-02-22 02:25:19,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:25:19,124 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:25:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:19,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:19,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:19,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:19,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:19,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:19,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:19,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:19,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:19,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:25:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:19,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:19,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-22 02:25:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:19,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:19,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-22 02:25:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:19,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:19,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:19,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-22 02:25:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:19,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:19,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-22 02:25:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:19,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:19,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:19,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:19,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-22 02:25:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:19,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:19,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-22 02:25:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:19,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:19,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 02:25:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:19,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:19,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 02:25:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:19,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:19,621 WARN L141 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-02-22 02:25:19,624 WARN L147 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size 14 [2021-02-22 02:25:19,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-22 02:25:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:19,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:25:19,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:19,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:19,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:19,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:19,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-22 02:25:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:19,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:19,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-22 02:25:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:19,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:19,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:19,810 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-02-22 02:25:19,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1225925169] [2021-02-22 02:25:19,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:25:19,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 02:25:19,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116213562] [2021-02-22 02:25:19,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 02:25:19,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:25:19,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 02:25:19,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-02-22 02:25:19,815 INFO L87 Difference]: Start difference. First operand 411 states and 500 transitions. Second operand 10 states. [2021-02-22 02:25:23,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:25:23,399 INFO L93 Difference]: Finished difference Result 1570 states and 2153 transitions. [2021-02-22 02:25:23,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-22 02:25:23,400 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 184 [2021-02-22 02:25:23,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:25:23,416 INFO L225 Difference]: With dead ends: 1570 [2021-02-22 02:25:23,416 INFO L226 Difference]: Without dead ends: 1207 [2021-02-22 02:25:23,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2021-02-22 02:25:23,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2021-02-22 02:25:23,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 785. [2021-02-22 02:25:23,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2021-02-22 02:25:23,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 993 transitions. [2021-02-22 02:25:23,642 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 993 transitions. Word has length 184 [2021-02-22 02:25:23,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:25:23,643 INFO L480 AbstractCegarLoop]: Abstraction has 785 states and 993 transitions. [2021-02-22 02:25:23,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 02:25:23,643 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 993 transitions. [2021-02-22 02:25:23,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-02-22 02:25:23,649 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:25:23,649 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:25:23,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 02:25:23,650 INFO L428 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:25:23,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:25:23,650 INFO L82 PathProgramCache]: Analyzing trace with hash -453914013, now seen corresponding path program 1 times [2021-02-22 02:25:23,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:25:23,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531756987] [2021-02-22 02:25:23,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:25:23,655 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:25:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:23,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:23,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:23,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:23,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:23,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:23,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:25:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:23,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:23,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:25:23,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-22 02:25:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:23,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:23,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-22 02:25:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:23,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:23,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-22 02:25:23,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-22 02:25:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:23,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:23,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-22 02:25:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:23,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:23,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:23,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:23,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-22 02:25:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:23,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:23,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-22 02:25:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:23,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:23,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 02:25:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:23,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:23,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 02:25:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:23,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:23,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-22 02:25:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:23,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:23,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:23,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:23,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:23,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:23,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-22 02:25:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:23,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:23,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-22 02:25:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:23,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:23,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:23,987 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-02-22 02:25:23,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1531756987] [2021-02-22 02:25:23,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:25:23,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 02:25:23,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793231697] [2021-02-22 02:25:23,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 02:25:23,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:25:23,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 02:25:23,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-02-22 02:25:23,991 INFO L87 Difference]: Start difference. First operand 785 states and 993 transitions. Second operand 9 states. [2021-02-22 02:25:26,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:25:26,170 INFO L93 Difference]: Finished difference Result 1832 states and 2383 transitions. [2021-02-22 02:25:26,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-22 02:25:26,176 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 184 [2021-02-22 02:25:26,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:25:26,191 INFO L225 Difference]: With dead ends: 1832 [2021-02-22 02:25:26,191 INFO L226 Difference]: Without dead ends: 1093 [2021-02-22 02:25:26,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2021-02-22 02:25:26,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2021-02-22 02:25:26,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 779. [2021-02-22 02:25:26,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 779 states. [2021-02-22 02:25:26,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 982 transitions. [2021-02-22 02:25:26,410 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 982 transitions. Word has length 184 [2021-02-22 02:25:26,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:25:26,414 INFO L480 AbstractCegarLoop]: Abstraction has 779 states and 982 transitions. [2021-02-22 02:25:26,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 02:25:26,414 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 982 transitions. [2021-02-22 02:25:26,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-02-22 02:25:26,420 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:25:26,421 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:25:26,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 02:25:26,421 INFO L428 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:25:26,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:25:26,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1497123805, now seen corresponding path program 1 times [2021-02-22 02:25:26,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:25:26,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057124552] [2021-02-22 02:25:26,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:25:26,426 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:25:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:26,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:26,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:26,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:26,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:26,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:25:26,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:26,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:26,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:26,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:25:26,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:25:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:26,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:26,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-22 02:25:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:26,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:26,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-22 02:25:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:26,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:26,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-22 02:25:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:26,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:26,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-22 02:25:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:26,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:26,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:26,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:26,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-22 02:25:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:26,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:26,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-22 02:25:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:26,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:26,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 02:25:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:26,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:26,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 02:25:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:26,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:26,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:26,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-22 02:25:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:26,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:26,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:26,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:26,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:26,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:26,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-22 02:25:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:26,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:26,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-22 02:25:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:26,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:26,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:26,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:26,937 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-02-22 02:25:26,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2057124552] [2021-02-22 02:25:26,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:25:26,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-22 02:25:26,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269058367] [2021-02-22 02:25:26,940 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-22 02:25:26,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:25:26,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-22 02:25:26,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-02-22 02:25:26,941 INFO L87 Difference]: Start difference. First operand 779 states and 982 transitions. Second operand 11 states. [2021-02-22 02:25:33,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:25:33,902 INFO L93 Difference]: Finished difference Result 4526 states and 6148 transitions. [2021-02-22 02:25:33,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-22 02:25:33,904 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 189 [2021-02-22 02:25:33,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:25:33,934 INFO L225 Difference]: With dead ends: 4526 [2021-02-22 02:25:33,935 INFO L226 Difference]: Without dead ends: 3792 [2021-02-22 02:25:33,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 914 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=566, Invalid=2296, Unknown=0, NotChecked=0, Total=2862 [2021-02-22 02:25:33,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3792 states. [2021-02-22 02:25:34,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3792 to 3004. [2021-02-22 02:25:34,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3004 states. [2021-02-22 02:25:34,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3004 states to 3004 states and 3803 transitions. [2021-02-22 02:25:34,734 INFO L78 Accepts]: Start accepts. Automaton has 3004 states and 3803 transitions. Word has length 189 [2021-02-22 02:25:34,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:25:34,736 INFO L480 AbstractCegarLoop]: Abstraction has 3004 states and 3803 transitions. [2021-02-22 02:25:34,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-22 02:25:34,737 INFO L276 IsEmpty]: Start isEmpty. Operand 3004 states and 3803 transitions. [2021-02-22 02:25:34,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-02-22 02:25:34,748 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:25:34,748 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, 2, 2, 2, 2, 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] [2021-02-22 02:25:34,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 02:25:34,749 INFO L428 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:25:34,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:25:34,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1911718646, now seen corresponding path program 1 times [2021-02-22 02:25:34,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:25:34,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703777515] [2021-02-22 02:25:34,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:25:34,753 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:25:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:34,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:34,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:34,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:34,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:34,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:34,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:34,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:34,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:25:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:34,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:34,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:34,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-22 02:25:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:34,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:34,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:34,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-22 02:25:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:34,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:34,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:34,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-22 02:25:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:34,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:34,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:34,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-22 02:25:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:34,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:34,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:34,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:35,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:35,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-22 02:25:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:35,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:35,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-22 02:25:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:35,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:35,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 02:25:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:35,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:35,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 02:25:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:35,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:35,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:35,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-22 02:25:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:35,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:35,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:35,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:35,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:25:35,101 WARN L141 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-02-22 02:25:35,102 WARN L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-02-22 02:25:35,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:35,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:35,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:35,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:25:35,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:25:35,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 02:25:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:35,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:35,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 02:25:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:35,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:35,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:25:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:35,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:35,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:35,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:35,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:35,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:35,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:35,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 02:25:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:35,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:35,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-02-22 02:25:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:35,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:35,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:35,315 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-22 02:25:35,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703777515] [2021-02-22 02:25:35,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:25:35,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-22 02:25:35,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270400989] [2021-02-22 02:25:35,317 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-22 02:25:35,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:25:35,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-22 02:25:35,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-02-22 02:25:35,318 INFO L87 Difference]: Start difference. First operand 3004 states and 3803 transitions. Second operand 12 states. [2021-02-22 02:25:38,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:25:38,711 INFO L93 Difference]: Finished difference Result 6537 states and 8543 transitions. [2021-02-22 02:25:38,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-22 02:25:38,712 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 233 [2021-02-22 02:25:38,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:25:38,736 INFO L225 Difference]: With dead ends: 6537 [2021-02-22 02:25:38,736 INFO L226 Difference]: Without dead ends: 3268 [2021-02-22 02:25:38,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=224, Invalid=532, Unknown=0, NotChecked=0, Total=756 [2021-02-22 02:25:38,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3268 states. [2021-02-22 02:25:39,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3268 to 2458. [2021-02-22 02:25:39,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2458 states. [2021-02-22 02:25:39,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3048 transitions. [2021-02-22 02:25:39,299 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3048 transitions. Word has length 233 [2021-02-22 02:25:39,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:25:39,300 INFO L480 AbstractCegarLoop]: Abstraction has 2458 states and 3048 transitions. [2021-02-22 02:25:39,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-22 02:25:39,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3048 transitions. [2021-02-22 02:25:39,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-02-22 02:25:39,306 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:25:39,307 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, 2, 2, 2, 2, 2, 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] [2021-02-22 02:25:39,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 02:25:39,307 INFO L428 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:25:39,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:25:39,308 INFO L82 PathProgramCache]: Analyzing trace with hash 759361234, now seen corresponding path program 1 times [2021-02-22 02:25:39,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:25:39,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823623168] [2021-02-22 02:25:39,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:25:39,312 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:25:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:39,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:39,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:39,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:39,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:39,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:25:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-22 02:25:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-22 02:25:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-22 02:25:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-22 02:25:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-22 02:25:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-22 02:25:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 02:25:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 02:25:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-22 02:25:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-22 02:25:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-22 02:25:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:39,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:25:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-22 02:25:39,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-22 02:25:39,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-22 02:25:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-22 02:25:39,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-02-22 02:25:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:39,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:39,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:39,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:25:39,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [823623168] [2021-02-22 02:25:39,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:25:39,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-22 02:25:39,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042402304] [2021-02-22 02:25:39,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-22 02:25:39,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:25:39,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-22 02:25:39,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-02-22 02:25:39,896 INFO L87 Difference]: Start difference. First operand 2458 states and 3048 transitions. Second operand 11 states. [2021-02-22 02:25:44,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:25:44,320 INFO L93 Difference]: Finished difference Result 7017 states and 9122 transitions. [2021-02-22 02:25:44,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-22 02:25:44,321 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 233 [2021-02-22 02:25:44,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:25:44,356 INFO L225 Difference]: With dead ends: 7017 [2021-02-22 02:25:44,356 INFO L226 Difference]: Without dead ends: 4604 [2021-02-22 02:25:44,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=222, Invalid=770, Unknown=0, NotChecked=0, Total=992 [2021-02-22 02:25:44,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4604 states. [2021-02-22 02:25:45,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4604 to 3690. [2021-02-22 02:25:45,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3690 states. [2021-02-22 02:25:45,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3690 states to 3690 states and 4490 transitions. [2021-02-22 02:25:45,219 INFO L78 Accepts]: Start accepts. Automaton has 3690 states and 4490 transitions. Word has length 233 [2021-02-22 02:25:45,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:25:45,220 INFO L480 AbstractCegarLoop]: Abstraction has 3690 states and 4490 transitions. [2021-02-22 02:25:45,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-22 02:25:45,221 INFO L276 IsEmpty]: Start isEmpty. Operand 3690 states and 4490 transitions. [2021-02-22 02:25:45,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-02-22 02:25:45,231 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:25:45,231 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:25:45,232 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 02:25:45,232 INFO L428 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:25:45,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:25:45,233 INFO L82 PathProgramCache]: Analyzing trace with hash -209033575, now seen corresponding path program 1 times [2021-02-22 02:25:45,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:25:45,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1120966868] [2021-02-22 02:25:45,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:25:45,237 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:25:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:45,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:45,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:45,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:25:45,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:25:45,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:25:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-22 02:25:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-22 02:25:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-22 02:25:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-22 02:25:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-22 02:25:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-22 02:25:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 02:25:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 02:25:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-22 02:25:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-22 02:25:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-22 02:25:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:45,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-02-22 02:25:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:45,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-02-22 02:25:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:25:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-22 02:25:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-02-22 02:25:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:45,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:45,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:45,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:25:45,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1120966868] [2021-02-22 02:25:45,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:25:45,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-22 02:25:45,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630490584] [2021-02-22 02:25:45,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-22 02:25:45,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:25:45,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-22 02:25:45,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-02-22 02:25:45,730 INFO L87 Difference]: Start difference. First operand 3690 states and 4490 transitions. Second operand 12 states. [2021-02-22 02:25:53,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:25:53,414 INFO L93 Difference]: Finished difference Result 7123 states and 8791 transitions. [2021-02-22 02:25:53,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-02-22 02:25:53,415 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 262 [2021-02-22 02:25:53,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:25:53,446 INFO L225 Difference]: With dead ends: 7123 [2021-02-22 02:25:53,447 INFO L226 Difference]: Without dead ends: 4639 [2021-02-22 02:25:53,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1317 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=689, Invalid=3217, Unknown=0, NotChecked=0, Total=3906 [2021-02-22 02:25:53,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2021-02-22 02:25:54,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 3732. [2021-02-22 02:25:54,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3732 states. [2021-02-22 02:25:54,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 4438 transitions. [2021-02-22 02:25:54,171 INFO L78 Accepts]: Start accepts. Automaton has 3732 states and 4438 transitions. Word has length 262 [2021-02-22 02:25:54,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:25:54,172 INFO L480 AbstractCegarLoop]: Abstraction has 3732 states and 4438 transitions. [2021-02-22 02:25:54,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-22 02:25:54,172 INFO L276 IsEmpty]: Start isEmpty. Operand 3732 states and 4438 transitions. [2021-02-22 02:25:54,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-02-22 02:25:54,182 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:25:54,182 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, 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] [2021-02-22 02:25:54,182 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-22 02:25:54,183 INFO L428 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:25:54,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:25:54,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1959177767, now seen corresponding path program 1 times [2021-02-22 02:25:54,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:25:54,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815567218] [2021-02-22 02:25:54,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:25:54,187 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:25:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:54,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:54,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:54,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:54,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:25:54,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:25:54,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:25:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-22 02:25:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-22 02:25:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-22 02:25:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:54,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-22 02:25:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-22 02:25:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-22 02:25:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 02:25:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:25:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-22 02:25:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-22 02:25:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:54,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-22 02:25:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-22 02:25:54,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:25:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:25:54,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:25:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:25:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:54,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:54,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:25:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-22 02:25:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:54,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:25:54,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-22 02:25:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:25:54,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:25:54,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:25:54,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:25:54,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815567218] [2021-02-22 02:25:54,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:25:54,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-02-22 02:25:54,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355668835] [2021-02-22 02:25:54,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-22 02:25:54,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:25:54,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-22 02:25:54,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-02-22 02:25:54,649 INFO L87 Difference]: Start difference. First operand 3732 states and 4438 transitions. Second operand 17 states. [2021-02-22 02:26:05,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:26:05,181 INFO L93 Difference]: Finished difference Result 8547 states and 10741 transitions. [2021-02-22 02:26:05,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-02-22 02:26:05,182 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 268 [2021-02-22 02:26:05,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:26:05,219 INFO L225 Difference]: With dead ends: 8547 [2021-02-22 02:26:05,219 INFO L226 Difference]: Without dead ends: 4859 [2021-02-22 02:26:05,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3889 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1782, Invalid=8724, Unknown=0, NotChecked=0, Total=10506 [2021-02-22 02:26:05,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4859 states. [2021-02-22 02:26:06,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4859 to 3740. [2021-02-22 02:26:06,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3740 states. [2021-02-22 02:26:06,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3740 states to 3740 states and 4345 transitions. [2021-02-22 02:26:06,364 INFO L78 Accepts]: Start accepts. Automaton has 3740 states and 4345 transitions. Word has length 268 [2021-02-22 02:26:06,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:26:06,365 INFO L480 AbstractCegarLoop]: Abstraction has 3740 states and 4345 transitions. [2021-02-22 02:26:06,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-02-22 02:26:06,365 INFO L276 IsEmpty]: Start isEmpty. Operand 3740 states and 4345 transitions. [2021-02-22 02:26:06,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-02-22 02:26:06,373 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:26:06,373 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] [2021-02-22 02:26:06,374 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-22 02:26:06,374 INFO L428 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:26:06,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:26:06,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1148524118, now seen corresponding path program 1 times [2021-02-22 02:26:06,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:26:06,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8156809] [2021-02-22 02:26:06,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:26:06,378 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:26:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:26:06,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 02:26:06,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:26:06,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:26:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:26:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-22 02:26:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-22 02:26:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-22 02:26:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-22 02:26:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:26:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-22 02:26:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-22 02:26:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 02:26:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:26:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-22 02:26:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-22 02:26:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:26:06,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-22 02:26:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:26:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:26:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-22 02:26:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:26:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:26:06,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 02:26:06,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:26:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:26:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:26:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-22 02:26:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-22 02:26:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:06,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:06,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:06,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:26:06,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8156809] [2021-02-22 02:26:06,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:26:06,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-22 02:26:06,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788833235] [2021-02-22 02:26:06,806 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-22 02:26:06,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:26:06,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-22 02:26:06,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-02-22 02:26:06,807 INFO L87 Difference]: Start difference. First operand 3740 states and 4345 transitions. Second operand 12 states. [2021-02-22 02:26:13,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:26:13,796 INFO L93 Difference]: Finished difference Result 10452 states and 12466 transitions. [2021-02-22 02:26:13,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-22 02:26:13,797 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 268 [2021-02-22 02:26:13,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:26:13,849 INFO L225 Difference]: With dead ends: 10452 [2021-02-22 02:26:13,849 INFO L226 Difference]: Without dead ends: 7672 [2021-02-22 02:26:13,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=353, Invalid=1369, Unknown=0, NotChecked=0, Total=1722 [2021-02-22 02:26:13,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7672 states. [2021-02-22 02:26:15,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7672 to 6301. [2021-02-22 02:26:15,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6301 states. [2021-02-22 02:26:15,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6301 states to 6301 states and 7426 transitions. [2021-02-22 02:26:15,178 INFO L78 Accepts]: Start accepts. Automaton has 6301 states and 7426 transitions. Word has length 268 [2021-02-22 02:26:15,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:26:15,179 INFO L480 AbstractCegarLoop]: Abstraction has 6301 states and 7426 transitions. [2021-02-22 02:26:15,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-22 02:26:15,179 INFO L276 IsEmpty]: Start isEmpty. Operand 6301 states and 7426 transitions. [2021-02-22 02:26:15,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-02-22 02:26:15,187 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:26:15,188 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] [2021-02-22 02:26:15,188 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-22 02:26:15,188 INFO L428 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:26:15,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:26:15,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1399302786, now seen corresponding path program 1 times [2021-02-22 02:26:15,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:26:15,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960394883] [2021-02-22 02:26:15,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:26:15,193 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:26:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:26:15,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:26:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-22 02:26:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-22 02:26:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-22 02:26:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-22 02:26:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-22 02:26:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:26:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-22 02:26:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-22 02:26:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 02:26:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-22 02:26:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-22 02:26:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-22 02:26:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-22 02:26:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:26:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:26:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-22 02:26:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-22 02:26:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-22 02:26:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:26:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 02:26:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-22 02:26:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-22 02:26:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:26:15,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:26:15,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:26:15,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:26:15,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960394883] [2021-02-22 02:26:15,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:26:15,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 02:26:15,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678446877] [2021-02-22 02:26:15,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 02:26:15,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:26:15,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 02:26:15,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-02-22 02:26:15,524 INFO L87 Difference]: Start difference. First operand 6301 states and 7426 transitions. Second operand 9 states. [2021-02-22 02:26:18,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:26:18,866 INFO L93 Difference]: Finished difference Result 11985 states and 14311 transitions. [2021-02-22 02:26:18,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-22 02:26:18,866 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 272 [2021-02-22 02:26:18,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:26:18,908 INFO L225 Difference]: With dead ends: 11985 [2021-02-22 02:26:18,908 INFO L226 Difference]: Without dead ends: 7490 [2021-02-22 02:26:18,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2021-02-22 02:26:18,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7490 states. [2021-02-22 02:26:20,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7490 to 6363. [2021-02-22 02:26:20,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6363 states. [2021-02-22 02:26:20,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6363 states to 6363 states and 7508 transitions. [2021-02-22 02:26:20,290 INFO L78 Accepts]: Start accepts. Automaton has 6363 states and 7508 transitions. Word has length 272 [2021-02-22 02:26:20,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:26:20,291 INFO L480 AbstractCegarLoop]: Abstraction has 6363 states and 7508 transitions. [2021-02-22 02:26:20,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 02:26:20,291 INFO L276 IsEmpty]: Start isEmpty. Operand 6363 states and 7508 transitions. [2021-02-22 02:26:20,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-02-22 02:26:20,300 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:26:20,300 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] [2021-02-22 02:26:20,300 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-22 02:26:20,301 INFO L428 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:26:20,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:26:20,301 INFO L82 PathProgramCache]: Analyzing trace with hash 800512033, now seen corresponding path program 1 times [2021-02-22 02:26:20,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:26:20,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [156136900] [2021-02-22 02:26:20,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:26:20,305 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:26:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 02:26:20,329 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 02:26:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 02:26:20,467 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 02:26:20,610 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 02:26:20,611 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 02:26:20,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-22 02:26:20,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 02:26:20 BoogieIcfgContainer [2021-02-22 02:26:20,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 02:26:20,650 INFO L168 Benchmark]: Toolchain (without parser) took 67068.50 ms. Allocated memory was 167.8 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 144.5 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 86.9 MB. Max. memory is 8.0 GB. [2021-02-22 02:26:20,650 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 167.8 MB. Free memory was 141.3 MB in the beginning and 141.1 MB in the end (delta: 220.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:26:20,650 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.05 ms. Allocated memory is still 167.8 MB. Free memory was 143.5 MB in the beginning and 130.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-22 02:26:20,651 INFO L168 Benchmark]: Boogie Preprocessor took 62.75 ms. Allocated memory is still 167.8 MB. Free memory was 130.1 MB in the beginning and 128.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 02:26:20,651 INFO L168 Benchmark]: RCFGBuilder took 1164.02 ms. Allocated memory is still 167.8 MB. Free memory was 128.0 MB in the beginning and 122.4 MB in the end (delta: 5.7 MB). Peak memory consumption was 14.8 MB. Max. memory is 8.0 GB. [2021-02-22 02:26:20,651 INFO L168 Benchmark]: TraceAbstraction took 65407.30 ms. Allocated memory was 167.8 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 121.8 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 63.7 MB. Max. memory is 8.0 GB. [2021-02-22 02:26:20,652 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 167.8 MB. Free memory was 141.3 MB in the beginning and 141.1 MB in the end (delta: 220.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 414.05 ms. Allocated memory is still 167.8 MB. Free memory was 143.5 MB in the beginning and 130.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 62.75 ms. Allocated memory is still 167.8 MB. Free memory was 130.1 MB in the beginning and 128.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1164.02 ms. Allocated memory is still 167.8 MB. Free memory was 128.0 MB in the beginning and 122.4 MB in the end (delta: 5.7 MB). Peak memory consumption was 14.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 65407.30 ms. Allocated memory was 167.8 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 121.8 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 63.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] int m_pc = 0; [L17] int t1_pc = 0; [L18] int m_st ; [L19] int t1_st ; [L20] int m_i ; [L21] int t1_i ; [L22] int M_E = 2; [L23] int T1_E = 2; [L24] int E_M = 2; [L25] int E_1 = 2; [L29] int token ; [L31] int local ; [L477] int __retres1 ; [L481] CALL init_model() [L392] m_i = 1 [L393] t1_i = 1 [L481] RET init_model() [L482] CALL start_simulation() [L418] int kernel_st ; [L419] int tmp ; [L420] int tmp___0 ; [L424] kernel_st = 0 [L425] FCALL update_channels() [L426] CALL init_threads() [L174] COND TRUE m_i == 1 [L175] m_st = 0 [L179] COND TRUE t1_i == 1 [L180] t1_st = 0 [L426] RET init_threads() [L427] CALL fire_delta_events() [L263] COND FALSE !(M_E == 0) [L268] COND FALSE !(T1_E == 0) [L273] COND FALSE !(E_M == 0) [L278] COND FALSE !(E_1 == 0) [L427] RET fire_delta_events() [L428] CALL activate_threads() [L316] int tmp ; [L317] int tmp___0 ; [L321] CALL, EXPR is_master_triggered() [L125] int __retres1 ; [L128] COND FALSE !(m_pc == 1) [L138] __retres1 = 0 [L140] return (__retres1); [L321] RET, EXPR is_master_triggered() [L321] tmp = is_master_triggered() [L323] COND FALSE !(\read(tmp)) [L329] CALL, EXPR is_transmit1_triggered() [L144] int __retres1 ; [L147] COND FALSE !(t1_pc == 1) [L157] __retres1 = 0 [L159] return (__retres1); [L329] RET, EXPR is_transmit1_triggered() [L329] tmp___0 = is_transmit1_triggered() [L331] COND FALSE !(\read(tmp___0)) [L428] RET activate_threads() [L429] CALL reset_delta_events() [L291] COND FALSE !(M_E == 1) [L296] COND FALSE !(T1_E == 1) [L301] COND FALSE !(E_M == 1) [L306] COND FALSE !(E_1 == 1) [L429] RET reset_delta_events() [L432] COND TRUE 1 [L435] kernel_st = 1 [L436] CALL eval() [L210] int tmp ; [L214] COND TRUE 1 [L217] CALL, EXPR exists_runnable_thread() [L189] int __retres1 ; [L192] COND TRUE m_st == 0 [L193] __retres1 = 1 [L205] return (__retres1); [L217] RET, EXPR exists_runnable_thread() [L217] tmp = exists_runnable_thread() [L219] COND TRUE \read(tmp) [L224] COND TRUE m_st == 0 [L225] int tmp_ndt_1; [L226] tmp_ndt_1 = __VERIFIER_nondet_int() [L227] COND FALSE !(\read(tmp_ndt_1)) [L238] COND TRUE t1_st == 0 [L239] int tmp_ndt_2; [L240] tmp_ndt_2 = __VERIFIER_nondet_int() [L241] COND TRUE \read(tmp_ndt_2) [L243] t1_st = 1 [L244] CALL transmit1() [L92] COND TRUE t1_pc == 0 [L103] COND TRUE 1 [L105] t1_pc = 1 [L106] t1_st = 2 [L244] RET transmit1() [L214] COND TRUE 1 [L217] CALL, EXPR exists_runnable_thread() [L189] int __retres1 ; [L192] COND TRUE m_st == 0 [L193] __retres1 = 1 [L205] return (__retres1); [L217] RET, EXPR exists_runnable_thread() [L217] tmp = exists_runnable_thread() [L219] COND TRUE \read(tmp) [L224] COND TRUE m_st == 0 [L225] int tmp_ndt_1; [L226] tmp_ndt_1 = __VERIFIER_nondet_int() [L227] COND TRUE \read(tmp_ndt_1) [L229] m_st = 1 [L230] CALL master() [L34] int tmp_var = __VERIFIER_nondet_int(); [L36] COND TRUE m_pc == 0 [L47] COND TRUE 1 [L50] token = __VERIFIER_nondet_int() [L51] local = token [L52] E_1 = 1 [L53] CALL immediate_notify() [L345] CALL activate_threads() [L316] int tmp ; [L317] int tmp___0 ; [L321] CALL, EXPR is_master_triggered() [L125] int __retres1 ; [L128] COND FALSE !(m_pc == 1) [L138] __retres1 = 0 [L140] return (__retres1); [L321] RET, EXPR is_master_triggered() [L321] tmp = is_master_triggered() [L323] COND FALSE !(\read(tmp)) [L329] CALL, EXPR is_transmit1_triggered() [L144] int __retres1 ; [L147] COND TRUE t1_pc == 1 [L148] COND TRUE E_1 == 1 [L149] __retres1 = 1 [L159] return (__retres1); [L329] RET, EXPR is_transmit1_triggered() [L329] tmp___0 = is_transmit1_triggered() [L331] COND TRUE \read(tmp___0) [L332] t1_st = 0 [L345] RET activate_threads() [L53] RET immediate_notify() [L54] E_1 = 2 [L55] m_pc = 1 [L56] m_st = 2 [L230] RET master() [L238] COND TRUE t1_st == 0 [L239] int tmp_ndt_2; [L240] tmp_ndt_2 = __VERIFIER_nondet_int() [L241] COND TRUE \read(tmp_ndt_2) [L243] t1_st = 1 [L244] CALL transmit1() [L92] COND FALSE !(t1_pc == 0) [L95] COND TRUE t1_pc == 1 [L111] token += 1 [L112] E_M = 1 [L113] CALL immediate_notify() [L345] CALL activate_threads() [L316] int tmp ; [L317] int tmp___0 ; [L321] CALL, EXPR is_master_triggered() [L125] int __retres1 ; [L128] COND TRUE m_pc == 1 [L129] COND TRUE E_M == 1 [L130] __retres1 = 1 [L140] return (__retres1); [L321] RET, EXPR is_master_triggered() [L321] tmp = is_master_triggered() [L323] COND TRUE \read(tmp) [L324] m_st = 0 [L329] CALL, EXPR is_transmit1_triggered() [L144] int __retres1 ; [L147] COND TRUE t1_pc == 1 [L148] COND FALSE !(E_1 == 1) [L157] __retres1 = 0 [L159] return (__retres1); [L329] RET, EXPR is_transmit1_triggered() [L329] tmp___0 = is_transmit1_triggered() [L331] COND FALSE !(\read(tmp___0)) [L345] RET activate_threads() [L113] RET immediate_notify() [L114] E_M = 2 [L103] COND TRUE 1 [L105] t1_pc = 1 [L106] t1_st = 2 [L244] RET transmit1() [L214] COND TRUE 1 [L217] CALL, EXPR exists_runnable_thread() [L189] int __retres1 ; [L192] COND TRUE m_st == 0 [L193] __retres1 = 1 [L205] return (__retres1); [L217] RET, EXPR exists_runnable_thread() [L217] tmp = exists_runnable_thread() [L219] COND TRUE \read(tmp) [L224] COND TRUE m_st == 0 [L225] int tmp_ndt_1; [L226] tmp_ndt_1 = __VERIFIER_nondet_int() [L227] COND TRUE \read(tmp_ndt_1) [L229] m_st = 1 [L230] CALL master() [L34] int tmp_var = __VERIFIER_nondet_int(); [L36] COND FALSE !(m_pc == 0) [L39] COND TRUE m_pc == 1 [L61] COND FALSE !(token != local + 1) [L66] COND TRUE tmp_var <= 5 [L67] COND TRUE tmp_var >= 5 [L72] COND TRUE tmp_var <= 5 [L73] COND TRUE tmp_var >= 5 [L74] COND TRUE tmp_var == 5 [L75] CALL error() [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 239 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 65.2s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 52.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3278 SDtfs, 17714 SDslu, 1400 SDs, 0 SdLazy, 21051 SolverSat, 6337 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 929 GetRequests, 536 SyntacticMatches, 2 SemanticMatches, 391 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7214 ImplicationChecksByTransitivity, 11.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6363occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 7953 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...