/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:10:30,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:10:30,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:10:30,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:10:30,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:10:30,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:10:30,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:10:30,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:10:30,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:10:30,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:10:30,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:10:30,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:10:30,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:10:30,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:10:30,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:10:30,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:10:30,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:10:30,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:10:30,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:10:30,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:10:30,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:10:30,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:10:30,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:10:30,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:10:30,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:10:30,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:10:30,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:10:30,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:10:30,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:10:30,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:10:30,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:10:30,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:10:30,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:10:30,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:10:30,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:10:30,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:10:30,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:10:30,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:10:30,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:10:30,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:10:30,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:10:30,265 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 16:10:30,290 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:10:30,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:10:30,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:10:30,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:10:30,292 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:10:30,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:10:30,293 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:10:30,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:10:30,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:10:30,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:10:30,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:10:30,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:10:30,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:10:30,294 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:10:30,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:10:30,295 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:10:30,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:10:30,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:10:30,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:10:30,296 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:10:30,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:10:30,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:10:30,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:10:30,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:10:30,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:10:30,297 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:10:30,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:10:30,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:10:30,298 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:10:30,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 16:10:30,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:10:30,802 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:10:30,807 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:10:30,809 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:10:30,809 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:10:30,811 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-09-24 16:10:30,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0862f609/1ddf6483390f49e79a535586f993b79c/FLAGf811cce77 [2020-09-24 16:10:31,482 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:10:31,483 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-09-24 16:10:31,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0862f609/1ddf6483390f49e79a535586f993b79c/FLAGf811cce77 [2020-09-24 16:10:31,805 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0862f609/1ddf6483390f49e79a535586f993b79c [2020-09-24 16:10:31,818 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:10:31,822 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:10:31,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:10:31,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:10:31,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:10:31,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:10:31" (1/1) ... [2020-09-24 16:10:31,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b6ae2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:31, skipping insertion in model container [2020-09-24 16:10:31,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:10:31" (1/1) ... [2020-09-24 16:10:31,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:10:31,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:10:32,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:10:32,132 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:10:32,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:10:32,303 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:10:32,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:32 WrapperNode [2020-09-24 16:10:32,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:10:32,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:10:32,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:10:32,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:10:32,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:32" (1/1) ... [2020-09-24 16:10:32,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:32" (1/1) ... [2020-09-24 16:10:32,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:32" (1/1) ... [2020-09-24 16:10:32,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:32" (1/1) ... [2020-09-24 16:10:32,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:32" (1/1) ... [2020-09-24 16:10:32,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:32" (1/1) ... [2020-09-24 16:10:32,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:32" (1/1) ... [2020-09-24 16:10:32,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:10:32,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:10:32,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:10:32,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:10:32,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:10:32,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:10:32,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:10:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 16:10:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure r_strncpy [2020-09-24 16:10:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2020-09-24 16:10:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:10:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:10:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 16:10:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 16:10:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2020-09-24 16:10:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-09-24 16:10:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2020-09-24 16:10:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-09-24 16:10:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy_ptr [2020-09-24 16:10:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-09-24 16:10:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-09-24 16:10:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-09-24 16:10:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-09-24 16:10:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2020-09-24 16:10:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-24 16:10:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure isascii [2020-09-24 16:10:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure isspace [2020-09-24 16:10:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-24 16:10:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure strrand [2020-09-24 16:10:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure istrrand [2020-09-24 16:10:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure istrchr [2020-09-24 16:10:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure istrrchr [2020-09-24 16:10:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure istrncmp [2020-09-24 16:10:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure istrstr [2020-09-24 16:10:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncpy [2020-09-24 16:10:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcpy [2020-09-24 16:10:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcat [2020-09-24 16:10:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncat [2020-09-24 16:10:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure r_memcpy [2020-09-24 16:10:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2020-09-24 16:10:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:10:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:10:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:10:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:10:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:10:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:10:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:10:32,951 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:10:32,952 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-24 16:10:32,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:10:32 BoogieIcfgContainer [2020-09-24 16:10:32,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:10:32,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:10:32,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:10:32,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:10:32,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:10:31" (1/3) ... [2020-09-24 16:10:32,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15767fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:10:32, skipping insertion in model container [2020-09-24 16:10:32,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:32" (2/3) ... [2020-09-24 16:10:32,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15767fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:10:32, skipping insertion in model container [2020-09-24 16:10:32,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:10:32" (3/3) ... [2020-09-24 16:10:32,969 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-09-24 16:10:32,982 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:10:32,994 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:10:33,019 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:10:33,055 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:10:33,055 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:10:33,056 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:10:33,056 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:10:33,056 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:10:33,056 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:10:33,057 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:10:33,057 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:10:33,086 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2020-09-24 16:10:33,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 16:10:33,099 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:33,101 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] [2020-09-24 16:10:33,101 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:33,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:33,110 INFO L82 PathProgramCache]: Analyzing trace with hash 593727157, now seen corresponding path program 1 times [2020-09-24 16:10:33,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:33,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702764924] [2020-09-24 16:10:33,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:33,291 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:33,291 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:33,292 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:33,292 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:33,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-24 16:10:33,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:33,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 16:10:33,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:33,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:33,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 16:10:33,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:33,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:33,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:33,373 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:33,373 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:33,374 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:33,374 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:33,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:33,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:33,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:10:33,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:33,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:33,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:33,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:33,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:33,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 16:10:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:33,393 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:33,393 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:33,394 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:33,394 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:33,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:10:33,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:33,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:10:33,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:33,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:33,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:10:33,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:33,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:33,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:10:33,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702764924] [2020-09-24 16:10:33,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:10:33,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:10:33,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31101406] [2020-09-24 16:10:33,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:10:33,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:33,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:10:33,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:10:33,441 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 3 states. [2020-09-24 16:10:33,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:33,822 INFO L93 Difference]: Finished difference Result 254 states and 290 transitions. [2020-09-24 16:10:33,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:10:33,825 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-09-24 16:10:33,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:33,838 INFO L225 Difference]: With dead ends: 254 [2020-09-24 16:10:33,838 INFO L226 Difference]: Without dead ends: 111 [2020-09-24 16:10:33,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:10:33,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-09-24 16:10:33,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-09-24 16:10:33,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-09-24 16:10:33,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2020-09-24 16:10:33,928 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 51 [2020-09-24 16:10:33,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:33,930 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2020-09-24 16:10:33,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:10:33,937 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2020-09-24 16:10:33,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-24 16:10:33,941 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:33,941 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] [2020-09-24 16:10:33,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:10:33,942 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:33,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:33,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1128985001, now seen corresponding path program 1 times [2020-09-24 16:10:33,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:33,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543049245] [2020-09-24 16:10:33,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:33,978 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:33,978 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:33,978 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:33,978 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:33,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 16:10:33,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:33,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:10:33,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:33,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:33,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 16:10:33,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 16:10:33,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:34,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:34,026 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:34,027 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:34,027 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:34,027 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:34,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:34,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:34,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:34,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:34,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:34,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:34,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:34,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:34,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 16:10:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:34,041 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:34,041 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:34,041 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:34,042 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:34,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:10:34,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:34,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:34,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:34,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:34,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:10:34,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:34,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:34,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:10:34,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543049245] [2020-09-24 16:10:34,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:10:34,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:10:34,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097513810] [2020-09-24 16:10:34,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:10:34,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:34,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:10:34,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:10:34,058 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand 4 states. [2020-09-24 16:10:34,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:34,314 INFO L93 Difference]: Finished difference Result 212 states and 232 transitions. [2020-09-24 16:10:34,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 16:10:34,315 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2020-09-24 16:10:34,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:34,317 INFO L225 Difference]: With dead ends: 212 [2020-09-24 16:10:34,317 INFO L226 Difference]: Without dead ends: 117 [2020-09-24 16:10:34,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:10:34,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-09-24 16:10:34,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 112. [2020-09-24 16:10:34,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-24 16:10:34,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 122 transitions. [2020-09-24 16:10:34,344 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 122 transitions. Word has length 63 [2020-09-24 16:10:34,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:34,345 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 122 transitions. [2020-09-24 16:10:34,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:10:34,346 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 122 transitions. [2020-09-24 16:10:34,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-24 16:10:34,351 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:34,352 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] [2020-09-24 16:10:34,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:10:34,352 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:34,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:34,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1210839627, now seen corresponding path program 1 times [2020-09-24 16:10:34,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:34,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662023618] [2020-09-24 16:10:34,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:34,399 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:34,400 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:34,400 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:34,400 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:34,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 16:10:34,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:34,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 16:10:34,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:34,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:10:34,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 16:10:34,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:10:34,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:34,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:34,480 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:34,481 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:34,481 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:34,481 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:34,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:34,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:34,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:10:34,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:34,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:34,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:34,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:34,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:34,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-24 16:10:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:34,503 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:34,503 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:34,503 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:34,504 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:34,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:10:34,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:34,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:34,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:34,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:34,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:10:34,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:34,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:34,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:10:34,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662023618] [2020-09-24 16:10:34,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:10:34,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 16:10:34,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504658309] [2020-09-24 16:10:34,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:10:34,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:34,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:10:34,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:10:34,526 INFO L87 Difference]: Start difference. First operand 112 states and 122 transitions. Second operand 6 states. [2020-09-24 16:10:34,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:34,788 INFO L93 Difference]: Finished difference Result 219 states and 239 transitions. [2020-09-24 16:10:34,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 16:10:34,788 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2020-09-24 16:10:34,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:34,790 INFO L225 Difference]: With dead ends: 219 [2020-09-24 16:10:34,790 INFO L226 Difference]: Without dead ends: 124 [2020-09-24 16:10:34,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:10:34,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-24 16:10:34,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 119. [2020-09-24 16:10:34,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-09-24 16:10:34,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 129 transitions. [2020-09-24 16:10:34,804 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 129 transitions. Word has length 70 [2020-09-24 16:10:34,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:34,804 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 129 transitions. [2020-09-24 16:10:34,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:10:34,805 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 129 transitions. [2020-09-24 16:10:34,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-24 16:10:34,806 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:34,807 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 16:10:34,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:10:34,807 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:34,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:34,808 INFO L82 PathProgramCache]: Analyzing trace with hash -257337495, now seen corresponding path program 2 times [2020-09-24 16:10:34,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:34,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629968982] [2020-09-24 16:10:34,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:34,883 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:34,885 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:34,886 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:34,886 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:34,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-24 16:10:34,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:34,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 16:10:34,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:34,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:10:34,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 16:10:34,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:10:34,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:35,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:35,013 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:35,013 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:35,014 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:35,014 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:35,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:35,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:35,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:35,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:35,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:35,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:35,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:35,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:35,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-24 16:10:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:35,024 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:35,024 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:35,024 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:35,025 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:35,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:10:35,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:35,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:35,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:35,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:35,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:10:35,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:35,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:35,052 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:10:35,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629968982] [2020-09-24 16:10:35,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:10:35,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 16:10:35,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159518910] [2020-09-24 16:10:35,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:10:35,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:35,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:10:35,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:10:35,056 INFO L87 Difference]: Start difference. First operand 119 states and 129 transitions. Second operand 8 states. [2020-09-24 16:10:35,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:35,333 INFO L93 Difference]: Finished difference Result 226 states and 246 transitions. [2020-09-24 16:10:35,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 16:10:35,334 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 77 [2020-09-24 16:10:35,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:35,335 INFO L225 Difference]: With dead ends: 226 [2020-09-24 16:10:35,335 INFO L226 Difference]: Without dead ends: 131 [2020-09-24 16:10:35,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-09-24 16:10:35,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-09-24 16:10:35,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 126. [2020-09-24 16:10:35,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-24 16:10:35,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 136 transitions. [2020-09-24 16:10:35,350 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 136 transitions. Word has length 77 [2020-09-24 16:10:35,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:35,351 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 136 transitions. [2020-09-24 16:10:35,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 16:10:35,351 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 136 transitions. [2020-09-24 16:10:35,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-24 16:10:35,352 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:35,352 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:10:35,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:10:35,353 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:35,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:35,353 INFO L82 PathProgramCache]: Analyzing trace with hash 883135627, now seen corresponding path program 3 times [2020-09-24 16:10:35,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:35,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689820389] [2020-09-24 16:10:35,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:35,403 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:35,405 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:35,405 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:35,405 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:35,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-24 16:10:35,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:35,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 16:10:35,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:35,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:10:35,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 16:10:35,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 16:10:35,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:35,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:35,581 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:35,581 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:35,581 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:35,581 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:35,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:35,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:35,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:35,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:35,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:35,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:35,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:35,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:35,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-24 16:10:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:35,589 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:35,589 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:35,590 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:35,590 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:35,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:10:35,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:35,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:35,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:35,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:35,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:10:35,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:35,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:35,599 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:10:35,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1689820389] [2020-09-24 16:10:35,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:10:35,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 16:10:35,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631035906] [2020-09-24 16:10:35,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:10:35,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:35,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:10:35,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:10:35,602 INFO L87 Difference]: Start difference. First operand 126 states and 136 transitions. Second operand 10 states. [2020-09-24 16:10:35,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:35,951 INFO L93 Difference]: Finished difference Result 233 states and 253 transitions. [2020-09-24 16:10:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 16:10:35,951 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-09-24 16:10:35,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:35,953 INFO L225 Difference]: With dead ends: 233 [2020-09-24 16:10:35,953 INFO L226 Difference]: Without dead ends: 138 [2020-09-24 16:10:35,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2020-09-24 16:10:35,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-09-24 16:10:35,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 133. [2020-09-24 16:10:35,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-09-24 16:10:35,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 143 transitions. [2020-09-24 16:10:35,967 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 143 transitions. Word has length 84 [2020-09-24 16:10:35,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:35,968 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 143 transitions. [2020-09-24 16:10:35,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:10:35,968 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 143 transitions. [2020-09-24 16:10:35,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-09-24 16:10:35,969 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:35,970 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:10:35,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:10:35,970 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:35,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:35,971 INFO L82 PathProgramCache]: Analyzing trace with hash -687690455, now seen corresponding path program 4 times [2020-09-24 16:10:35,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:35,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115892494] [2020-09-24 16:10:35,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:36,056 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:36,056 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:36,056 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:36,056 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:36,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-09-24 16:10:36,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:36,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 16:10:36,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 16:10:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 16:10:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 16:10:36,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:36,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:36,225 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:36,226 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:36,226 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:36,226 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:36,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:36,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:36,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:36,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:36,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:36,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:36,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:36,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-24 16:10:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:36,234 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:36,235 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:36,235 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:36,235 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:36,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:10:36,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:36,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:36,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:36,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:36,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:10:36,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:36,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:36,246 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:10:36,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115892494] [2020-09-24 16:10:36,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:10:36,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 16:10:36,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280520862] [2020-09-24 16:10:36,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 16:10:36,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:36,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 16:10:36,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-09-24 16:10:36,249 INFO L87 Difference]: Start difference. First operand 133 states and 143 transitions. Second operand 12 states. [2020-09-24 16:10:36,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:36,753 INFO L93 Difference]: Finished difference Result 240 states and 260 transitions. [2020-09-24 16:10:36,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 16:10:36,753 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 91 [2020-09-24 16:10:36,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:36,755 INFO L225 Difference]: With dead ends: 240 [2020-09-24 16:10:36,755 INFO L226 Difference]: Without dead ends: 145 [2020-09-24 16:10:36,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2020-09-24 16:10:36,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-09-24 16:10:36,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 140. [2020-09-24 16:10:36,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-24 16:10:36,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 150 transitions. [2020-09-24 16:10:36,781 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 150 transitions. Word has length 91 [2020-09-24 16:10:36,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:36,783 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 150 transitions. [2020-09-24 16:10:36,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 16:10:36,783 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 150 transitions. [2020-09-24 16:10:36,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-09-24 16:10:36,785 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:36,785 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:10:36,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 16:10:36,785 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:36,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:36,787 INFO L82 PathProgramCache]: Analyzing trace with hash -722319669, now seen corresponding path program 5 times [2020-09-24 16:10:36,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:36,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [541329928] [2020-09-24 16:10:36,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:36,895 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:36,896 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:36,897 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:36,897 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:36,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 16:10:36,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:36,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-24 16:10:36,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:36,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:10:36,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 16:10:36,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 16:10:36,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:37,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:37,034 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:37,034 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:37,034 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:37,035 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:37,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:37,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:37,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:37,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:37,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:37,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:37,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:37,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:37,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:10:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:37,043 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:37,043 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:37,043 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:37,043 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:37,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:10:37,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:37,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:37,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:37,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:37,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:10:37,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:37,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:37,070 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:10:37,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [541329928] [2020-09-24 16:10:37,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:10:37,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 16:10:37,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857719853] [2020-09-24 16:10:37,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 16:10:37,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:37,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 16:10:37,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-09-24 16:10:37,073 INFO L87 Difference]: Start difference. First operand 140 states and 150 transitions. Second operand 14 states. [2020-09-24 16:10:37,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:37,486 INFO L93 Difference]: Finished difference Result 247 states and 267 transitions. [2020-09-24 16:10:37,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 16:10:37,487 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 98 [2020-09-24 16:10:37,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:37,489 INFO L225 Difference]: With dead ends: 247 [2020-09-24 16:10:37,489 INFO L226 Difference]: Without dead ends: 152 [2020-09-24 16:10:37,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=372, Unknown=0, NotChecked=0, Total=552 [2020-09-24 16:10:37,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-09-24 16:10:37,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 147. [2020-09-24 16:10:37,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-09-24 16:10:37,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 157 transitions. [2020-09-24 16:10:37,518 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 157 transitions. Word has length 98 [2020-09-24 16:10:37,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:37,519 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 157 transitions. [2020-09-24 16:10:37,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 16:10:37,522 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2020-09-24 16:10:37,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-24 16:10:37,524 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:37,525 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:10:37,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 16:10:37,525 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:37,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:37,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1819472617, now seen corresponding path program 6 times [2020-09-24 16:10:37,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:37,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757239009] [2020-09-24 16:10:37,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:37,622 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:37,622 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:37,622 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:37,623 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:37,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-24 16:10:37,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:37,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 16:10:37,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:37,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 16:10:37,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 16:10:37,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 16:10:37,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:37,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:37,839 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:37,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:37,841 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:37,841 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:37,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:37,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:37,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:10:37,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:37,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:37,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:37,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:37,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:37,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 16:10:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:37,854 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:37,855 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:37,855 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:37,855 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:37,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:10:37,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:37,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:10:37,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:37,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:37,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:10:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:37,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:37,878 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:10:37,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757239009] [2020-09-24 16:10:37,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:10:37,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-24 16:10:37,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106095120] [2020-09-24 16:10:37,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 16:10:37,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:37,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 16:10:37,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 16:10:37,882 INFO L87 Difference]: Start difference. First operand 147 states and 157 transitions. Second operand 16 states. [2020-09-24 16:10:38,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:38,452 INFO L93 Difference]: Finished difference Result 254 states and 274 transitions. [2020-09-24 16:10:38,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 16:10:38,453 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 105 [2020-09-24 16:10:38,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:38,455 INFO L225 Difference]: With dead ends: 254 [2020-09-24 16:10:38,455 INFO L226 Difference]: Without dead ends: 159 [2020-09-24 16:10:38,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=245, Invalid=511, Unknown=0, NotChecked=0, Total=756 [2020-09-24 16:10:38,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-09-24 16:10:38,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 154. [2020-09-24 16:10:38,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-24 16:10:38,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 164 transitions. [2020-09-24 16:10:38,464 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 164 transitions. Word has length 105 [2020-09-24 16:10:38,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:38,464 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 164 transitions. [2020-09-24 16:10:38,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-24 16:10:38,465 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 164 transitions. [2020-09-24 16:10:38,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-24 16:10:38,466 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:38,466 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:10:38,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 16:10:38,467 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:38,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:38,467 INFO L82 PathProgramCache]: Analyzing trace with hash -612628213, now seen corresponding path program 7 times [2020-09-24 16:10:38,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:38,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [242814471] [2020-09-24 16:10:38,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:38,541 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:38,541 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:38,541 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:38,541 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:38,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-24 16:10:38,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:38,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 16:10:38,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:38,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 16:10:38,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 16:10:38,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 16:10:38,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:38,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:38,759 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:38,759 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:38,759 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:38,759 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:38,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:38,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:38,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:38,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:38,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:38,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:38,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:38,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:38,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-09-24 16:10:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:38,768 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:38,769 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:38,769 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:38,769 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:38,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:10:38,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:38,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:38,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:38,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:38,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:10:38,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:38,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:38,793 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:10:38,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [242814471] [2020-09-24 16:10:38,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:10:38,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-24 16:10:38,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023903383] [2020-09-24 16:10:38,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-24 16:10:38,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:38,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-24 16:10:38,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-09-24 16:10:38,797 INFO L87 Difference]: Start difference. First operand 154 states and 164 transitions. Second operand 18 states. [2020-09-24 16:10:39,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:39,457 INFO L93 Difference]: Finished difference Result 256 states and 276 transitions. [2020-09-24 16:10:39,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-24 16:10:39,458 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 112 [2020-09-24 16:10:39,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:39,460 INFO L225 Difference]: With dead ends: 256 [2020-09-24 16:10:39,460 INFO L226 Difference]: Without dead ends: 161 [2020-09-24 16:10:39,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=320, Invalid=672, Unknown=0, NotChecked=0, Total=992 [2020-09-24 16:10:39,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-09-24 16:10:39,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2020-09-24 16:10:39,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-09-24 16:10:39,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 171 transitions. [2020-09-24 16:10:39,468 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 171 transitions. Word has length 112 [2020-09-24 16:10:39,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:39,469 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 171 transitions. [2020-09-24 16:10:39,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-24 16:10:39,469 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 171 transitions. [2020-09-24 16:10:39,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-09-24 16:10:39,470 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:39,471 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:10:39,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 16:10:39,471 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:39,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:39,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1175857321, now seen corresponding path program 8 times [2020-09-24 16:10:39,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:39,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1730844164] [2020-09-24 16:10:39,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:39,500 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:39,500 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:39,500 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:39,501 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:39,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-24 16:10:39,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:39,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:39,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:39,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:39,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-09-24 16:10:39,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 16:10:39,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:39,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:39,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:39,540 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:39,540 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:39,540 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:39,541 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:39,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:39,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:39,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:39,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:39,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:39,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:39,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:39,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:39,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-24 16:10:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:39,547 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:39,547 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:39,547 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:39,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:39,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:10:39,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:39,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:39,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:39,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:39,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:10:39,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:39,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:39,558 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2020-09-24 16:10:39,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1730844164] [2020-09-24 16:10:39,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:10:39,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:10:39,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128079034] [2020-09-24 16:10:39,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:10:39,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:39,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:10:39,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:10:39,561 INFO L87 Difference]: Start difference. First operand 161 states and 171 transitions. Second operand 4 states. [2020-09-24 16:10:39,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:39,728 INFO L93 Difference]: Finished difference Result 249 states and 269 transitions. [2020-09-24 16:10:39,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 16:10:39,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2020-09-24 16:10:39,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:39,730 INFO L225 Difference]: With dead ends: 249 [2020-09-24 16:10:39,731 INFO L226 Difference]: Without dead ends: 162 [2020-09-24 16:10:39,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:10:39,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-09-24 16:10:39,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-09-24 16:10:39,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-24 16:10:39,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 172 transitions. [2020-09-24 16:10:39,738 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 172 transitions. Word has length 119 [2020-09-24 16:10:39,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:39,738 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 172 transitions. [2020-09-24 16:10:39,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:10:39,738 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 172 transitions. [2020-09-24 16:10:39,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-24 16:10:39,740 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:39,740 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:10:39,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 16:10:39,740 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:39,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:39,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1395739916, now seen corresponding path program 1 times [2020-09-24 16:10:39,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:39,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279655302] [2020-09-24 16:10:39,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:39,775 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:39,775 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:39,775 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:39,775 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:39,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-24 16:10:39,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:39,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:10:39,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:39,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:10:39,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 16:10:39,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 16:10:39,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:39,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:39,860 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:39,860 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:39,860 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:39,861 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:39,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:39,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:39,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:39,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:39,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:39,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:39,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:39,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:39,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-24 16:10:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:39,868 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:39,868 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:39,868 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:39,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:39,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:10:39,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:39,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:39,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:39,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:39,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:10:39,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:39,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:39,892 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2020-09-24 16:10:39,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279655302] [2020-09-24 16:10:39,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:10:39,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 16:10:39,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465937236] [2020-09-24 16:10:39,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:10:39,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:39,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:10:39,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:10:39,896 INFO L87 Difference]: Start difference. First operand 162 states and 172 transitions. Second operand 8 states. [2020-09-24 16:10:40,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:40,523 INFO L93 Difference]: Finished difference Result 537 states and 599 transitions. [2020-09-24 16:10:40,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 16:10:40,524 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2020-09-24 16:10:40,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:40,534 INFO L225 Difference]: With dead ends: 537 [2020-09-24 16:10:40,534 INFO L226 Difference]: Without dead ends: 443 [2020-09-24 16:10:40,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-09-24 16:10:40,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-09-24 16:10:40,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 204. [2020-09-24 16:10:40,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-09-24 16:10:40,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 222 transitions. [2020-09-24 16:10:40,575 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 222 transitions. Word has length 121 [2020-09-24 16:10:40,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:40,576 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 222 transitions. [2020-09-24 16:10:40,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 16:10:40,576 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 222 transitions. [2020-09-24 16:10:40,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-09-24 16:10:40,577 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:40,577 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:10:40,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 16:10:40,578 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:40,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:40,578 INFO L82 PathProgramCache]: Analyzing trace with hash 454539305, now seen corresponding path program 1 times [2020-09-24 16:10:40,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:40,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576781095] [2020-09-24 16:10:40,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:40,625 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:40,626 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:40,626 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:40,626 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:40,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-24 16:10:40,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:40,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:40,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:40,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:40,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-09-24 16:10:40,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 16:10:40,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:40,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:40,667 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:40,667 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:40,667 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:40,667 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:40,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:40,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:40,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:40,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:40,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:40,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:40,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:40,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:40,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-24 16:10:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:40,675 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:40,675 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:40,675 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:40,675 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:40,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:10:40,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:40,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:40,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:40,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:40,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:10:40,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:40,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:40,687 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2020-09-24 16:10:40,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576781095] [2020-09-24 16:10:40,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:10:40,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:10:40,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992777281] [2020-09-24 16:10:40,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:10:40,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:40,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:10:40,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:10:40,690 INFO L87 Difference]: Start difference. First operand 204 states and 222 transitions. Second operand 4 states. [2020-09-24 16:10:40,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:40,899 INFO L93 Difference]: Finished difference Result 336 states and 372 transitions. [2020-09-24 16:10:40,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 16:10:40,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 124 [2020-09-24 16:10:40,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:40,902 INFO L225 Difference]: With dead ends: 336 [2020-09-24 16:10:40,902 INFO L226 Difference]: Without dead ends: 205 [2020-09-24 16:10:40,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:10:40,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-09-24 16:10:40,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-09-24 16:10:40,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-09-24 16:10:40,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 222 transitions. [2020-09-24 16:10:40,916 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 222 transitions. Word has length 124 [2020-09-24 16:10:40,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:40,917 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 222 transitions. [2020-09-24 16:10:40,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:10:40,917 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 222 transitions. [2020-09-24 16:10:40,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-09-24 16:10:40,920 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:40,920 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:10:40,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 16:10:40,921 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:40,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:40,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1684557317, now seen corresponding path program 1 times [2020-09-24 16:10:40,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:40,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [120377859] [2020-09-24 16:10:40,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:40,986 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:40,986 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:40,987 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:40,987 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:40,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-24 16:10:40,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:40,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 16:10:40,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:40,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:10:40,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 16:10:40,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 16:10:40,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:41,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:41,129 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:41,129 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:41,130 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:41,130 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:41,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:41,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:41,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:41,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:41,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:41,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:41,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:41,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:41,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-24 16:10:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:41,140 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:41,141 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:41,141 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:41,141 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:41,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:10:41,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:41,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:41,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:41,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:41,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:10:41,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:41,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:41,171 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2020-09-24 16:10:41,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [120377859] [2020-09-24 16:10:41,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:10:41,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:10:41,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622727822] [2020-09-24 16:10:41,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:10:41,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:41,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:10:41,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:10:41,175 INFO L87 Difference]: Start difference. First operand 205 states and 222 transitions. Second operand 9 states. [2020-09-24 16:10:42,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:42,043 INFO L93 Difference]: Finished difference Result 632 states and 709 transitions. [2020-09-24 16:10:42,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 16:10:42,044 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 124 [2020-09-24 16:10:42,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:42,048 INFO L225 Difference]: With dead ends: 632 [2020-09-24 16:10:42,048 INFO L226 Difference]: Without dead ends: 497 [2020-09-24 16:10:42,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2020-09-24 16:10:42,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-09-24 16:10:42,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 209. [2020-09-24 16:10:42,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-09-24 16:10:42,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 226 transitions. [2020-09-24 16:10:42,062 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 226 transitions. Word has length 124 [2020-09-24 16:10:42,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:42,062 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 226 transitions. [2020-09-24 16:10:42,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:10:42,063 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 226 transitions. [2020-09-24 16:10:42,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-09-24 16:10:42,064 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:42,065 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:10:42,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 16:10:42,065 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:42,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:42,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1120204730, now seen corresponding path program 1 times [2020-09-24 16:10:42,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:42,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182538205] [2020-09-24 16:10:42,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:42,111 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:42,111 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:42,111 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:42,111 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:42,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-09-24 16:10:42,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:42,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:10:42,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:42,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:10:42,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 16:10:42,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 16:10:42,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:42,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:42,217 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:42,217 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:42,217 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:42,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:42,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:42,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:42,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:42,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:42,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:42,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:42,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:42,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:42,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-09-24 16:10:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:42,225 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:42,225 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:42,225 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:42,225 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:42,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:10:42,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:42,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:42,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:42,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:42,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:10:42,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:42,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:42,241 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2020-09-24 16:10:42,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182538205] [2020-09-24 16:10:42,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:10:42,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 16:10:42,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525194102] [2020-09-24 16:10:42,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:10:42,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:42,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:10:42,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:10:42,244 INFO L87 Difference]: Start difference. First operand 209 states and 226 transitions. Second operand 10 states. [2020-09-24 16:10:43,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:43,015 INFO L93 Difference]: Finished difference Result 606 states and 674 transitions. [2020-09-24 16:10:43,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 16:10:43,017 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 126 [2020-09-24 16:10:43,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:43,021 INFO L225 Difference]: With dead ends: 606 [2020-09-24 16:10:43,021 INFO L226 Difference]: Without dead ends: 441 [2020-09-24 16:10:43,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2020-09-24 16:10:43,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-09-24 16:10:43,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 219. [2020-09-24 16:10:43,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-09-24 16:10:43,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 238 transitions. [2020-09-24 16:10:43,040 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 238 transitions. Word has length 126 [2020-09-24 16:10:43,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:43,041 INFO L479 AbstractCegarLoop]: Abstraction has 219 states and 238 transitions. [2020-09-24 16:10:43,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:10:43,041 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 238 transitions. [2020-09-24 16:10:43,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-09-24 16:10:43,044 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:43,044 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:10:43,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 16:10:43,045 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:43,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:43,045 INFO L82 PathProgramCache]: Analyzing trace with hash 2135603949, now seen corresponding path program 1 times [2020-09-24 16:10:43,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:43,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512753373] [2020-09-24 16:10:43,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:43,110 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:43,110 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:43,110 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:43,110 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:43,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-24 16:10:43,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:43,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 16:10:43,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:43,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 16:10:43,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 16:10:43,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 16:10:43,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:43,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:43,254 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:43,254 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:43,254 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:43,255 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:43,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:43,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:43,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:43,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:43,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:43,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:43,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:43,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:43,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 16:10:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:43,263 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:43,264 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:43,264 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:43,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:43,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:10:43,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:43,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:43,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:43,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:43,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:10:43,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:43,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:43,314 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2020-09-24 16:10:43,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512753373] [2020-09-24 16:10:43,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:10:43,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 16:10:43,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744187906] [2020-09-24 16:10:43,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 16:10:43,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:43,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 16:10:43,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-24 16:10:43,318 INFO L87 Difference]: Start difference. First operand 219 states and 238 transitions. Second operand 12 states. [2020-09-24 16:10:44,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:44,009 INFO L93 Difference]: Finished difference Result 593 states and 664 transitions. [2020-09-24 16:10:44,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 16:10:44,009 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 129 [2020-09-24 16:10:44,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:44,012 INFO L225 Difference]: With dead ends: 593 [2020-09-24 16:10:44,012 INFO L226 Difference]: Without dead ends: 433 [2020-09-24 16:10:44,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2020-09-24 16:10:44,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-09-24 16:10:44,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 240. [2020-09-24 16:10:44,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-24 16:10:44,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 263 transitions. [2020-09-24 16:10:44,024 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 263 transitions. Word has length 129 [2020-09-24 16:10:44,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:44,024 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 263 transitions. [2020-09-24 16:10:44,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 16:10:44,024 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 263 transitions. [2020-09-24 16:10:44,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-09-24 16:10:44,026 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:44,026 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 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] [2020-09-24 16:10:44,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 16:10:44,027 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:44,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:44,027 INFO L82 PathProgramCache]: Analyzing trace with hash -374659365, now seen corresponding path program 1 times [2020-09-24 16:10:44,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:44,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [711136428] [2020-09-24 16:10:44,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:44,058 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:44,058 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:44,058 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:44,058 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:44,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 16:10:44,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:44,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:10:44,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:44,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:10:44,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 16:10:44,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 16:10:44,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:44,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:44,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:44,139 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:44,139 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:44,139 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:44,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:44,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:44,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:44,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:44,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:44,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:44,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:44,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:44,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 16:10:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:44,146 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:44,146 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:44,147 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:44,147 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:44,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:10:44,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:44,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:44,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:44,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:44,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:10:44,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:44,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:44,164 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2020-09-24 16:10:44,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [711136428] [2020-09-24 16:10:44,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:10:44,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 16:10:44,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565035249] [2020-09-24 16:10:44,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:10:44,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:44,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:10:44,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:10:44,168 INFO L87 Difference]: Start difference. First operand 240 states and 263 transitions. Second operand 8 states. [2020-09-24 16:10:44,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:44,719 INFO L93 Difference]: Finished difference Result 556 states and 623 transitions. [2020-09-24 16:10:44,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 16:10:44,720 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 131 [2020-09-24 16:10:44,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:44,723 INFO L225 Difference]: With dead ends: 556 [2020-09-24 16:10:44,724 INFO L226 Difference]: Without dead ends: 407 [2020-09-24 16:10:44,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-09-24 16:10:44,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-09-24 16:10:44,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 294. [2020-09-24 16:10:44,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-09-24 16:10:44,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 327 transitions. [2020-09-24 16:10:44,750 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 327 transitions. Word has length 131 [2020-09-24 16:10:44,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:44,751 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 327 transitions. [2020-09-24 16:10:44,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 16:10:44,751 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 327 transitions. [2020-09-24 16:10:44,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-09-24 16:10:44,753 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:44,753 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 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] [2020-09-24 16:10:44,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 16:10:44,753 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:44,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:44,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1298582752, now seen corresponding path program 1 times [2020-09-24 16:10:44,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:44,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [396557804] [2020-09-24 16:10:44,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:44,780 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:44,780 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:44,780 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:44,781 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:44,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 16:10:44,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:44,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:44,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:44,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:44,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-09-24 16:10:44,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 16:10:44,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:44,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:44,818 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:44,818 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:44,819 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:44,819 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:44,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:44,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:44,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:44,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:44,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:44,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:44,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:44,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:10:44,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 16:10:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:44,826 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:44,826 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:44,826 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:44,826 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:44,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:10:44,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:44,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:44,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:44,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:44,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:10:44,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:44,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:44,840 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2020-09-24 16:10:44,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [396557804] [2020-09-24 16:10:44,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:10:44,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:10:44,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238598132] [2020-09-24 16:10:44,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:10:44,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:44,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:10:44,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:10:44,845 INFO L87 Difference]: Start difference. First operand 294 states and 327 transitions. Second operand 4 states. [2020-09-24 16:10:45,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:45,010 INFO L93 Difference]: Finished difference Result 459 states and 516 transitions. [2020-09-24 16:10:45,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 16:10:45,013 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 131 [2020-09-24 16:10:45,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:45,016 INFO L225 Difference]: With dead ends: 459 [2020-09-24 16:10:45,016 INFO L226 Difference]: Without dead ends: 296 [2020-09-24 16:10:45,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:10:45,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-24 16:10:45,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 295. [2020-09-24 16:10:45,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-09-24 16:10:45,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 326 transitions. [2020-09-24 16:10:45,033 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 326 transitions. Word has length 131 [2020-09-24 16:10:45,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:45,033 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 326 transitions. [2020-09-24 16:10:45,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:10:45,034 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 326 transitions. [2020-09-24 16:10:45,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-24 16:10:45,035 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:45,035 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 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] [2020-09-24 16:10:45,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-24 16:10:45,036 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:45,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:45,036 INFO L82 PathProgramCache]: Analyzing trace with hash -729212679, now seen corresponding path program 1 times [2020-09-24 16:10:45,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:45,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2078919113] [2020-09-24 16:10:45,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:45,082 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:45,082 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:45,082 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:45,083 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:45,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-24 16:10:45,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:45,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:10:45,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:45,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:10:45,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-09-24 16:10:45,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 16:10:45,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:45,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:45,148 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:45,149 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:45,149 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:45,149 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:45,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:45,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:45,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:45,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:45,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:45,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:45,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:45,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:45,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 16:10:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:45,164 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:45,165 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:45,165 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:45,165 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:45,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:10:45,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:45,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:10:45,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:45,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:45,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:45,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:10:45,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:45,184 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-09-24 16:10:45,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2078919113] [2020-09-24 16:10:45,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:10:45,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:10:45,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213348932] [2020-09-24 16:10:45,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:10:45,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:45,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:10:45,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:10:45,195 INFO L87 Difference]: Start difference. First operand 295 states and 326 transitions. Second operand 6 states. [2020-09-24 16:10:45,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:45,405 INFO L93 Difference]: Finished difference Result 295 states and 326 transitions. [2020-09-24 16:10:45,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 16:10:45,405 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2020-09-24 16:10:45,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:45,406 INFO L225 Difference]: With dead ends: 295 [2020-09-24 16:10:45,406 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 16:10:45,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:10:45,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 16:10:45,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 16:10:45,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 16:10:45,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 16:10:45,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 132 [2020-09-24 16:10:45,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:45,408 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 16:10:45,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:10:45,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 16:10:45,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 16:10:45,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-24 16:10:45,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 16:10:45,534 INFO L268 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-09-24 16:10:45,535 INFO L268 CegarLoopResult]: For program point L60-1(line 60) no Hoare annotation was computed. [2020-09-24 16:10:45,535 INFO L268 CegarLoopResult]: For program point L60-2(line 60) no Hoare annotation was computed. [2020-09-24 16:10:45,535 INFO L268 CegarLoopResult]: For program point L60-4(line 60) no Hoare annotation was computed. [2020-09-24 16:10:45,535 INFO L268 CegarLoopResult]: For program point L60-5(line 60) no Hoare annotation was computed. [2020-09-24 16:10:45,535 INFO L268 CegarLoopResult]: For program point L60-6(line 60) no Hoare annotation was computed. [2020-09-24 16:10:45,535 INFO L268 CegarLoopResult]: For program point L60-7(line 60) no Hoare annotation was computed. [2020-09-24 16:10:45,536 INFO L268 CegarLoopResult]: For program point L60-8(line 60) no Hoare annotation was computed. [2020-09-24 16:10:45,536 INFO L268 CegarLoopResult]: For program point L60-9(line 60) no Hoare annotation was computed. [2020-09-24 16:10:45,536 INFO L268 CegarLoopResult]: For program point L52-1(lines 52 73) no Hoare annotation was computed. [2020-09-24 16:10:45,536 INFO L268 CegarLoopResult]: For program point L60-11(line 60) no Hoare annotation was computed. [2020-09-24 16:10:45,536 INFO L271 CegarLoopResult]: At program point L52-3(lines 52 73) the Hoare annotation is: true [2020-09-24 16:10:45,536 INFO L268 CegarLoopResult]: For program point L60-12(line 60) no Hoare annotation was computed. [2020-09-24 16:10:45,537 INFO L268 CegarLoopResult]: For program point L52-4(lines 52 73) no Hoare annotation was computed. [2020-09-24 16:10:45,537 INFO L268 CegarLoopResult]: For program point L60-13(lines 54 72) no Hoare annotation was computed. [2020-09-24 16:10:45,537 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-09-24 16:10:45,537 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-09-24 16:10:45,537 INFO L268 CegarLoopResult]: For program point L53-1(line 53) no Hoare annotation was computed. [2020-09-24 16:10:45,537 INFO L268 CegarLoopResult]: For program point L62(lines 62 64) no Hoare annotation was computed. [2020-09-24 16:10:45,537 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-24 16:10:45,537 INFO L268 CegarLoopResult]: For program point L54-1(line 54) no Hoare annotation was computed. [2020-09-24 16:10:45,537 INFO L268 CegarLoopResult]: For program point L54-2(lines 54 72) no Hoare annotation was computed. [2020-09-24 16:10:45,538 INFO L268 CegarLoopResult]: For program point L54-3(line 54) no Hoare annotation was computed. [2020-09-24 16:10:45,538 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-09-24 16:10:45,538 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-24 16:10:45,538 INFO L268 CegarLoopResult]: For program point L56-1(line 56) no Hoare annotation was computed. [2020-09-24 16:10:45,538 INFO L268 CegarLoopResult]: For program point L56-2(line 56) no Hoare annotation was computed. [2020-09-24 16:10:45,538 INFO L268 CegarLoopResult]: For program point L56-4(line 56) no Hoare annotation was computed. [2020-09-24 16:10:45,538 INFO L268 CegarLoopResult]: For program point L56-5(line 56) no Hoare annotation was computed. [2020-09-24 16:10:45,538 INFO L268 CegarLoopResult]: For program point L56-6(line 56) no Hoare annotation was computed. [2020-09-24 16:10:45,539 INFO L268 CegarLoopResult]: For program point L56-7(line 56) no Hoare annotation was computed. [2020-09-24 16:10:45,539 INFO L268 CegarLoopResult]: For program point L56-8(line 56) no Hoare annotation was computed. [2020-09-24 16:10:45,539 INFO L268 CegarLoopResult]: For program point L56-9(line 56) no Hoare annotation was computed. [2020-09-24 16:10:45,539 INFO L268 CegarLoopResult]: For program point L56-11(line 56) no Hoare annotation was computed. [2020-09-24 16:10:45,539 INFO L268 CegarLoopResult]: For program point L56-12(line 56) no Hoare annotation was computed. [2020-09-24 16:10:45,539 INFO L268 CegarLoopResult]: For program point L56-13(line 56) no Hoare annotation was computed. [2020-09-24 16:10:45,539 INFO L268 CegarLoopResult]: For program point L56-14(line 56) no Hoare annotation was computed. [2020-09-24 16:10:45,539 INFO L268 CegarLoopResult]: For program point L56-15(line 56) no Hoare annotation was computed. [2020-09-24 16:10:45,540 INFO L268 CegarLoopResult]: For program point L73(lines 52 73) no Hoare annotation was computed. [2020-09-24 16:10:45,540 INFO L268 CegarLoopResult]: For program point L56-16(line 56) no Hoare annotation was computed. [2020-09-24 16:10:45,540 INFO L268 CegarLoopResult]: For program point L73-1(line 73) no Hoare annotation was computed. [2020-09-24 16:10:45,540 INFO L271 CegarLoopResult]: At program point L56-17(line 56) the Hoare annotation is: true [2020-09-24 16:10:45,540 INFO L268 CegarLoopResult]: For program point L73-2(line 73) no Hoare annotation was computed. [2020-09-24 16:10:45,540 INFO L268 CegarLoopResult]: For program point L56-18(line 56) no Hoare annotation was computed. [2020-09-24 16:10:45,540 INFO L264 CegarLoopResult]: At program point L65(line 65) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2020-09-24 16:10:45,540 INFO L268 CegarLoopResult]: For program point L65-1(line 65) no Hoare annotation was computed. [2020-09-24 16:10:45,541 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-24 16:10:45,541 INFO L268 CegarLoopResult]: For program point L57-1(line 57) no Hoare annotation was computed. [2020-09-24 16:10:45,541 INFO L268 CegarLoopResult]: For program point L57-2(line 57) no Hoare annotation was computed. [2020-09-24 16:10:45,541 INFO L268 CegarLoopResult]: For program point L57-3(line 57) no Hoare annotation was computed. [2020-09-24 16:10:45,541 INFO L268 CegarLoopResult]: For program point L57-4(line 57) no Hoare annotation was computed. [2020-09-24 16:10:45,541 INFO L268 CegarLoopResult]: For program point L57-6(line 57) no Hoare annotation was computed. [2020-09-24 16:10:45,541 INFO L268 CegarLoopResult]: For program point L57-7(line 57) no Hoare annotation was computed. [2020-09-24 16:10:45,541 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-24 16:10:45,542 INFO L268 CegarLoopResult]: For program point L49-1(line 49) no Hoare annotation was computed. [2020-09-24 16:10:45,542 INFO L268 CegarLoopResult]: For program point L49-2(line 49) no Hoare annotation was computed. [2020-09-24 16:10:45,542 INFO L264 CegarLoopResult]: At program point L66(line 66) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2020-09-24 16:10:45,542 INFO L268 CegarLoopResult]: For program point L66-1(line 66) no Hoare annotation was computed. [2020-09-24 16:10:45,542 INFO L268 CegarLoopResult]: For program point parse_expression_listFINAL(lines 47 75) no Hoare annotation was computed. [2020-09-24 16:10:45,542 INFO L264 CegarLoopResult]: At program point parse_expression_listENTRY(lines 47 75) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-24 16:10:45,542 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-24 16:10:45,542 INFO L268 CegarLoopResult]: For program point L50-1(lines 48 75) no Hoare annotation was computed. [2020-09-24 16:10:45,542 INFO L268 CegarLoopResult]: For program point L50-2(line 50) no Hoare annotation was computed. [2020-09-24 16:10:45,543 INFO L268 CegarLoopResult]: For program point L50-3(line 50) no Hoare annotation was computed. [2020-09-24 16:10:45,543 INFO L268 CegarLoopResult]: For program point L50-4(line 50) no Hoare annotation was computed. [2020-09-24 16:10:45,543 INFO L268 CegarLoopResult]: For program point L50-5(line 50) no Hoare annotation was computed. [2020-09-24 16:10:45,543 INFO L268 CegarLoopResult]: For program point L50-6(line 50) no Hoare annotation was computed. [2020-09-24 16:10:45,543 INFO L268 CegarLoopResult]: For program point L50-7(line 50) no Hoare annotation was computed. [2020-09-24 16:10:45,543 INFO L268 CegarLoopResult]: For program point L50-8(line 50) no Hoare annotation was computed. [2020-09-24 16:10:45,543 INFO L268 CegarLoopResult]: For program point L50-9(line 50) no Hoare annotation was computed. [2020-09-24 16:10:45,544 INFO L268 CegarLoopResult]: For program point L67(lines 61 70) no Hoare annotation was computed. [2020-09-24 16:10:45,544 INFO L268 CegarLoopResult]: For program point parse_expression_listEXIT(lines 47 75) no Hoare annotation was computed. [2020-09-24 16:10:45,544 INFO L268 CegarLoopResult]: For program point L59-1(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,544 INFO L268 CegarLoopResult]: For program point L59-2(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,544 INFO L268 CegarLoopResult]: For program point L59-3(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,544 INFO L268 CegarLoopResult]: For program point L59-4(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,544 INFO L268 CegarLoopResult]: For program point L59-6(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,544 INFO L268 CegarLoopResult]: For program point L59-7(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,545 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-24 16:10:45,545 INFO L268 CegarLoopResult]: For program point L59-8(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,545 INFO L268 CegarLoopResult]: For program point L59-10(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,545 INFO L268 CegarLoopResult]: For program point L59-11(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,545 INFO L268 CegarLoopResult]: For program point L59-12(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,545 INFO L268 CegarLoopResult]: For program point L59-13(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,545 INFO L268 CegarLoopResult]: For program point L59-14(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,545 INFO L268 CegarLoopResult]: For program point L59-16(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,546 INFO L268 CegarLoopResult]: For program point L59-17(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,546 INFO L268 CegarLoopResult]: For program point L59-18(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,546 INFO L268 CegarLoopResult]: For program point L59-19(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,546 INFO L268 CegarLoopResult]: For program point L59-20(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,546 INFO L268 CegarLoopResult]: For program point L59-21(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,546 INFO L268 CegarLoopResult]: For program point L59-22(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,546 INFO L271 CegarLoopResult]: At program point L59-23(line 59) the Hoare annotation is: true [2020-09-24 16:10:45,546 INFO L268 CegarLoopResult]: For program point L59-24(line 59) no Hoare annotation was computed. [2020-09-24 16:10:45,547 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-24 16:10:45,547 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-24 16:10:45,547 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 16:10:45,547 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-24 16:10:45,547 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 16:10:45,547 INFO L268 CegarLoopResult]: For program point r_strncpyFINAL(line 31) no Hoare annotation was computed. [2020-09-24 16:10:45,547 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-24 16:10:45,547 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-09-24 16:10:45,548 INFO L268 CegarLoopResult]: For program point L31-2(line 31) no Hoare annotation was computed. [2020-09-24 16:10:45,548 INFO L268 CegarLoopResult]: For program point r_strncpyEXIT(line 31) no Hoare annotation was computed. [2020-09-24 16:10:45,548 INFO L268 CegarLoopResult]: For program point L31-3(line 31) no Hoare annotation was computed. [2020-09-24 16:10:45,548 INFO L268 CegarLoopResult]: For program point L31-4(line 31) no Hoare annotation was computed. [2020-09-24 16:10:45,548 INFO L271 CegarLoopResult]: At program point r_strncpyENTRY(line 31) the Hoare annotation is: true [2020-09-24 16:10:45,548 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 16:10:45,548 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 16:10:45,548 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 16:10:45,549 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 16:10:45,549 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 76 85) no Hoare annotation was computed. [2020-09-24 16:10:45,549 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-09-24 16:10:45,549 INFO L268 CegarLoopResult]: For program point L83-1(line 83) no Hoare annotation was computed. [2020-09-24 16:10:45,549 INFO L268 CegarLoopResult]: For program point L79-2(lines 79 81) no Hoare annotation was computed. [2020-09-24 16:10:45,549 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 76 85) no Hoare annotation was computed. [2020-09-24 16:10:45,549 INFO L268 CegarLoopResult]: For program point L79-3(line 79) no Hoare annotation was computed. [2020-09-24 16:10:45,549 INFO L268 CegarLoopResult]: For program point L79-4(line 79) no Hoare annotation was computed. [2020-09-24 16:10:45,549 INFO L271 CegarLoopResult]: At program point L79-5(lines 79 81) the Hoare annotation is: true [2020-09-24 16:10:45,550 INFO L268 CegarLoopResult]: For program point L79-6(lines 79 81) no Hoare annotation was computed. [2020-09-24 16:10:45,550 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 76 85) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-24 16:10:45,550 INFO L268 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-09-24 16:10:45,550 INFO L271 CegarLoopResult]: At program point L82(line 82) the Hoare annotation is: true [2020-09-24 16:10:45,550 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-09-24 16:10:45,550 INFO L268 CegarLoopResult]: For program point L80-1(line 80) no Hoare annotation was computed. [2020-09-24 16:10:45,550 INFO L268 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-09-24 16:10:45,551 INFO L268 CegarLoopResult]: For program point L80-2(line 80) no Hoare annotation was computed. [2020-09-24 16:10:45,551 INFO L268 CegarLoopResult]: For program point L78-1(line 78) no Hoare annotation was computed. [2020-09-24 16:10:45,551 INFO L268 CegarLoopResult]: For program point L78-2(line 78) no Hoare annotation was computed. [2020-09-24 16:10:45,551 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-24 16:10:45,551 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-09-24 16:10:45,551 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 16:10:45,551 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-09-24 16:10:45,551 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-09-24 16:10:45,552 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-09-24 16:10:45,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:10:45 BoogieIcfgContainer [2020-09-24 16:10:45,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 16:10:45,574 INFO L168 Benchmark]: Toolchain (without parser) took 13752.01 ms. Allocated memory was 140.0 MB in the beginning and 377.0 MB in the end (delta: 237.0 MB). Free memory was 101.6 MB in the beginning and 178.8 MB in the end (delta: -77.1 MB). Peak memory consumption was 159.9 MB. Max. memory is 7.1 GB. [2020-09-24 16:10:45,576 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 119.8 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. [2020-09-24 16:10:45,583 INFO L168 Benchmark]: CACSL2BoogieTranslator took 477.57 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 180.6 MB in the end (delta: -79.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-09-24 16:10:45,583 INFO L168 Benchmark]: Boogie Preprocessor took 55.39 ms. Allocated memory is still 203.4 MB. Free memory was 180.6 MB in the beginning and 177.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-09-24 16:10:45,586 INFO L168 Benchmark]: RCFGBuilder took 598.61 ms. Allocated memory is still 203.4 MB. Free memory was 177.7 MB in the beginning and 143.5 MB in the end (delta: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2020-09-24 16:10:45,587 INFO L168 Benchmark]: TraceAbstraction took 12608.71 ms. Allocated memory was 203.4 MB in the beginning and 377.0 MB in the end (delta: 173.5 MB). Free memory was 142.6 MB in the beginning and 178.8 MB in the end (delta: -36.2 MB). Peak memory consumption was 137.3 MB. Max. memory is 7.1 GB. [2020-09-24 16:10:45,597 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 119.8 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 477.57 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 180.6 MB in the end (delta: -79.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.39 ms. Allocated memory is still 203.4 MB. Free memory was 180.6 MB in the beginning and 177.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 598.61 ms. Allocated memory is still 203.4 MB. Free memory was 177.7 MB in the beginning and 143.5 MB in the end (delta: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12608.71 ms. Allocated memory was 203.4 MB in the beginning and 377.0 MB in the end (delta: 173.5 MB). Free memory was 142.6 MB in the beginning and 178.8 MB in the end (delta: -36.2 MB). Peak memory consumption was 137.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 79]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 135 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.3s, OverallIterations: 18, TraceHistogramMax: 8, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2214 SDtfs, 2505 SDslu, 9477 SDs, 0 SdLazy, 5033 SolverSat, 215 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 330 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=295occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 1091 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 102 PreInvPairs, 126 NumberOfFragments, 35 HoareAnnotationTreeSize, 102 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 40 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1888 NumberOfCodeBlocks, 1888 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1870 ConstructedInterpolants, 0 QuantifiedInterpolants, 343855 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 1849/2269 InterpolantCoveringCapability, 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 correct! Received shutdown request...