/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 21:18:18,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 21:18:18,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 21:18:18,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 21:18:18,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 21:18:18,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 21:18:18,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 21:18:18,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 21:18:18,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 21:18:18,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 21:18:18,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 21:18:18,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 21:18:18,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 21:18:18,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 21:18:18,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 21:18:18,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 21:18:18,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 21:18:18,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 21:18:18,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 21:18:18,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 21:18:18,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 21:18:18,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 21:18:18,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 21:18:18,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 21:18:18,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 21:18:18,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 21:18:18,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 21:18:18,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 21:18:18,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 21:18:18,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 21:18:18,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 21:18:18,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 21:18:18,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 21:18:18,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 21:18:18,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 21:18:18,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 21:18:18,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 21:18:18,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 21:18:18,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 21:18:18,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 21:18:18,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 21:18:18,301 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 21:18:18,326 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 21:18:18,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 21:18:18,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 21:18:18,331 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 21:18:18,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 21:18:18,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 21:18:18,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 21:18:18,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 21:18:18,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 21:18:18,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 21:18:18,334 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 21:18:18,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 21:18:18,334 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 21:18:18,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 21:18:18,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 21:18:18,335 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 21:18:18,335 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 21:18:18,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 21:18:18,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 21:18:18,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 21:18:18,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 21:18:18,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 21:18:18,336 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 21:18:18,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 21:18:18,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 21:18:18,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 21:18:18,786 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 21:18:18,786 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 21:18:18,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2021-02-21 21:18:18,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21d3af289/b7b80e5cf2304e72b2111c01040fff8a/FLAGd3b30c6a6 [2021-02-21 21:18:19,481 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 21:18:19,482 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2021-02-21 21:18:19,490 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21d3af289/b7b80e5cf2304e72b2111c01040fff8a/FLAGd3b30c6a6 [2021-02-21 21:18:19,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21d3af289/b7b80e5cf2304e72b2111c01040fff8a [2021-02-21 21:18:19,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 21:18:19,866 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 21:18:19,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 21:18:19,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 21:18:19,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 21:18:19,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:18:19" (1/1) ... [2021-02-21 21:18:19,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44ad686a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:19, skipping insertion in model container [2021-02-21 21:18:19,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:18:19" (1/1) ... [2021-02-21 21:18:19,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 21:18:19,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 21:18:20,100 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i[878,891] [2021-02-21 21:18:20,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:18:20,154 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 21:18:20,169 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i[878,891] [2021-02-21 21:18:20,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:18:20,217 INFO L208 MainTranslator]: Completed translation [2021-02-21 21:18:20,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:20 WrapperNode [2021-02-21 21:18:20,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 21:18:20,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 21:18:20,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 21:18:20,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 21:18:20,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:20" (1/1) ... [2021-02-21 21:18:20,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:20" (1/1) ... [2021-02-21 21:18:20,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:20" (1/1) ... [2021-02-21 21:18:20,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:20" (1/1) ... [2021-02-21 21:18:20,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:20" (1/1) ... [2021-02-21 21:18:20,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:20" (1/1) ... [2021-02-21 21:18:20,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:20" (1/1) ... [2021-02-21 21:18:20,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 21:18:20,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 21:18:20,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 21:18:20,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 21:18:20,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 21:18:20,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 21:18:20,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 21:18:20,363 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 21:18:20,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-21 21:18:20,363 INFO L138 BoogieDeclarations]: Found implementation of procedure r_strncpy [2021-02-21 21:18:20,364 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2021-02-21 21:18:20,364 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 21:18:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 21:18:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 21:18:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-21 21:18:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-21 21:18:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 21:18:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 21:18:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-02-21 21:18:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 21:18:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2021-02-21 21:18:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-02-21 21:18:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-02-21 21:18:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-02-21 21:18:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy_ptr [2021-02-21 21:18:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2021-02-21 21:18:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2021-02-21 21:18:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-02-21 21:18:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-02-21 21:18:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-02-21 21:18:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-02-21 21:18:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure isascii [2021-02-21 21:18:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure isspace [2021-02-21 21:18:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2021-02-21 21:18:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure strrand [2021-02-21 21:18:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure istrrand [2021-02-21 21:18:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure istrchr [2021-02-21 21:18:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure istrrchr [2021-02-21 21:18:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure istrncmp [2021-02-21 21:18:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure istrstr [2021-02-21 21:18:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncpy [2021-02-21 21:18:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcpy [2021-02-21 21:18:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcat [2021-02-21 21:18:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncat [2021-02-21 21:18:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure r_memcpy [2021-02-21 21:18:20,370 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2021-02-21 21:18:20,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 21:18:20,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 21:18:20,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 21:18:20,370 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 21:18:20,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 21:18:20,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 21:18:20,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 21:18:20,993 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 21:18:20,994 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-02-21 21:18:20,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:18:20 BoogieIcfgContainer [2021-02-21 21:18:20,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 21:18:20,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 21:18:20,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 21:18:21,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 21:18:21,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 09:18:19" (1/3) ... [2021-02-21 21:18:21,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfcfeca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:18:21, skipping insertion in model container [2021-02-21 21:18:21,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:20" (2/3) ... [2021-02-21 21:18:21,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfcfeca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:18:21, skipping insertion in model container [2021-02-21 21:18:21,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:18:20" (3/3) ... [2021-02-21 21:18:21,007 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER_cases1_stripFullBoth_arr.i [2021-02-21 21:18:21,014 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 21:18:21,019 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 21:18:21,041 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 21:18:21,066 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 21:18:21,067 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 21:18:21,067 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 21:18:21,067 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 21:18:21,067 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 21:18:21,068 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 21:18:21,068 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 21:18:21,068 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 21:18:21,090 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2021-02-21 21:18:21,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-02-21 21:18:21,105 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:18:21,106 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] [2021-02-21 21:18:21,107 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:18:21,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:18:21,118 INFO L82 PathProgramCache]: Analyzing trace with hash -364003915, now seen corresponding path program 1 times [2021-02-21 21:18:21,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:18:21,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300839543] [2021-02-21 21:18:21,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:18:21,239 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:18:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:21,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:21,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:21,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:21,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:21,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:18:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:21,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:21,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:21,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-21 21:18:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:21,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:21,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:21,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:18:21,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1300839543] [2021-02-21 21:18:21,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:18:21,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-21 21:18:21,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904583198] [2021-02-21 21:18:21,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-21 21:18:21,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:18:21,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-21 21:18:21,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 21:18:21,609 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 3 states. [2021-02-21 21:18:22,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:18:22,034 INFO L93 Difference]: Finished difference Result 259 states and 295 transitions. [2021-02-21 21:18:22,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 21:18:22,036 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2021-02-21 21:18:22,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:18:22,045 INFO L225 Difference]: With dead ends: 259 [2021-02-21 21:18:22,046 INFO L226 Difference]: Without dead ends: 115 [2021-02-21 21:18:22,051 INFO L677 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 [2021-02-21 21:18:22,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-02-21 21:18:22,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-02-21 21:18:22,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2021-02-21 21:18:22,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 125 transitions. [2021-02-21 21:18:22,107 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 125 transitions. Word has length 55 [2021-02-21 21:18:22,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:18:22,108 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 125 transitions. [2021-02-21 21:18:22,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-21 21:18:22,108 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 125 transitions. [2021-02-21 21:18:22,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-02-21 21:18:22,111 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:18:22,111 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] [2021-02-21 21:18:22,112 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 21:18:22,112 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:18:22,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:18:22,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1804281577, now seen corresponding path program 1 times [2021-02-21 21:18:22,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:18:22,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1558371228] [2021-02-21 21:18:22,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:18:22,117 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:18:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:22,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:22,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:22,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:22,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:18:22,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:22,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:22,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:18:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:22,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:22,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:22,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-21 21:18:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:22,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:22,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:22,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:18:22,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1558371228] [2021-02-21 21:18:22,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:18:22,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 21:18:22,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701577875] [2021-02-21 21:18:22,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 21:18:22,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:18:22,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 21:18:22,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 21:18:22,231 INFO L87 Difference]: Start difference. First operand 115 states and 125 transitions. Second operand 4 states. [2021-02-21 21:18:22,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:18:22,465 INFO L93 Difference]: Finished difference Result 216 states and 236 transitions. [2021-02-21 21:18:22,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 21:18:22,465 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2021-02-21 21:18:22,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:18:22,468 INFO L225 Difference]: With dead ends: 216 [2021-02-21 21:18:22,468 INFO L226 Difference]: Without dead ends: 121 [2021-02-21 21:18:22,470 INFO L677 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 [2021-02-21 21:18:22,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-02-21 21:18:22,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 116. [2021-02-21 21:18:22,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2021-02-21 21:18:22,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 126 transitions. [2021-02-21 21:18:22,486 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 126 transitions. Word has length 67 [2021-02-21 21:18:22,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:18:22,486 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 126 transitions. [2021-02-21 21:18:22,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 21:18:22,487 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 126 transitions. [2021-02-21 21:18:22,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-02-21 21:18:22,489 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:18:22,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:18:22,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 21:18:22,490 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:18:22,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:18:22,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1279655060, now seen corresponding path program 1 times [2021-02-21 21:18:22,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:18:22,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106477984] [2021-02-21 21:18:22,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:18:22,516 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 21:18:22,518 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:18:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:22,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:22,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:22,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:22,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:18:22,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:22,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:18:22,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:22,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:18:22,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:22,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:22,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:18:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:22,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:22,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:22,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-21 21:18:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:22,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:22,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:22,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:18:22,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1106477984] [2021-02-21 21:18:22,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:18:22,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 21:18:22,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957018305] [2021-02-21 21:18:22,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 21:18:22,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:18:22,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 21:18:22,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-21 21:18:22,684 INFO L87 Difference]: Start difference. First operand 116 states and 126 transitions. Second operand 6 states. [2021-02-21 21:18:22,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:18:22,927 INFO L93 Difference]: Finished difference Result 223 states and 243 transitions. [2021-02-21 21:18:22,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-21 21:18:22,928 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 74 [2021-02-21 21:18:22,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:18:22,929 INFO L225 Difference]: With dead ends: 223 [2021-02-21 21:18:22,930 INFO L226 Difference]: Without dead ends: 128 [2021-02-21 21:18:22,931 INFO L677 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 [2021-02-21 21:18:22,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-02-21 21:18:22,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 123. [2021-02-21 21:18:22,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2021-02-21 21:18:22,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2021-02-21 21:18:22,944 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 74 [2021-02-21 21:18:22,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:18:22,945 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2021-02-21 21:18:22,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 21:18:22,945 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2021-02-21 21:18:22,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-02-21 21:18:22,948 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:18:22,948 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, 1, 1, 1, 1] [2021-02-21 21:18:22,949 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 21:18:22,949 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:18:22,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:18:22,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1005944695, now seen corresponding path program 2 times [2021-02-21 21:18:22,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:18:22,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1683893043] [2021-02-21 21:18:22,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:18:22,957 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 21:18:22,959 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:18:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:23,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:23,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:23,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:23,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:18:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:23,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:23,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-21 21:18:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:23,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:23,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:18:23,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1683893043] [2021-02-21 21:18:23,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:18:23,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 21:18:23,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501890939] [2021-02-21 21:18:23,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 21:18:23,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:18:23,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 21:18:23,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 21:18:23,043 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand 4 states. [2021-02-21 21:18:23,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:18:23,203 INFO L93 Difference]: Finished difference Result 211 states and 231 transitions. [2021-02-21 21:18:23,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 21:18:23,204 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 81 [2021-02-21 21:18:23,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:18:23,206 INFO L225 Difference]: With dead ends: 211 [2021-02-21 21:18:23,206 INFO L226 Difference]: Without dead ends: 124 [2021-02-21 21:18:23,207 INFO L677 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 [2021-02-21 21:18:23,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-02-21 21:18:23,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2021-02-21 21:18:23,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2021-02-21 21:18:23,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 134 transitions. [2021-02-21 21:18:23,219 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 134 transitions. Word has length 81 [2021-02-21 21:18:23,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:18:23,219 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 134 transitions. [2021-02-21 21:18:23,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 21:18:23,220 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 134 transitions. [2021-02-21 21:18:23,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-02-21 21:18:23,221 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:18:23,221 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, 1, 1, 1, 1, 1, 1] [2021-02-21 21:18:23,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 21:18:23,222 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:18:23,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:18:23,223 INFO L82 PathProgramCache]: Analyzing trace with hash 525139788, now seen corresponding path program 1 times [2021-02-21 21:18:23,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:18:23,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433963350] [2021-02-21 21:18:23,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:18:23,230 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 21:18:23,232 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:18:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:23,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:23,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:23,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-21 21:18:23,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:18:23,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:18:23,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:23,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:18:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:23,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:23,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-21 21:18:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:23,427 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:23,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:18:23,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433963350] [2021-02-21 21:18:23,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:18:23,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 21:18:23,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810451423] [2021-02-21 21:18:23,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 21:18:23,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:18:23,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 21:18:23,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-21 21:18:23,451 INFO L87 Difference]: Start difference. First operand 124 states and 134 transitions. Second operand 6 states. [2021-02-21 21:18:23,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:18:23,716 INFO L93 Difference]: Finished difference Result 124 states and 134 transitions. [2021-02-21 21:18:23,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-21 21:18:23,717 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2021-02-21 21:18:23,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:18:23,720 INFO L225 Difference]: With dead ends: 124 [2021-02-21 21:18:23,720 INFO L226 Difference]: Without dead ends: 0 [2021-02-21 21:18:23,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-21 21:18:23,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-21 21:18:23,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-21 21:18:23,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-21 21:18:23,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-21 21:18:23,723 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83 [2021-02-21 21:18:23,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:18:23,724 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-21 21:18:23,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 21:18:23,724 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-21 21:18:23,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-21 21:18:23,724 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 21:18:23,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-21 21:18:24,358 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-02-21 21:18:24,359 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-02-21 21:18:24,359 INFO L189 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-02-21 21:18:24,359 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-02-21 21:18:24,359 INFO L189 CegarLoopUtils]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-02-21 21:18:24,359 INFO L192 CegarLoopUtils]: At program point L68-3(line 68) the Hoare annotation is: true [2021-02-21 21:18:24,359 INFO L192 CegarLoopUtils]: At program point L68-4(line 68) the Hoare annotation is: true [2021-02-21 21:18:24,360 INFO L192 CegarLoopUtils]: At program point L68-6(line 68) the Hoare annotation is: true [2021-02-21 21:18:24,360 INFO L192 CegarLoopUtils]: At program point L68-7(line 68) the Hoare annotation is: true [2021-02-21 21:18:24,360 INFO L185 CegarLoopUtils]: At program point L60(line 60) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-21 21:18:24,360 INFO L185 CegarLoopUtils]: At program point L60-1(line 60) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-21 21:18:24,360 INFO L185 CegarLoopUtils]: At program point L60-2(line 60) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-21 21:18:24,360 INFO L185 CegarLoopUtils]: At program point L77(line 77) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2021-02-21 21:18:24,361 INFO L185 CegarLoopUtils]: At program point L77-1(line 77) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2021-02-21 21:18:24,361 INFO L185 CegarLoopUtils]: At program point L61(line 61) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-21 21:18:24,361 INFO L192 CegarLoopUtils]: At program point L61-1(lines 59 86) the Hoare annotation is: true [2021-02-21 21:18:24,361 INFO L192 CegarLoopUtils]: At program point L61-2(line 61) the Hoare annotation is: true [2021-02-21 21:18:24,361 INFO L192 CegarLoopUtils]: At program point L61-3(line 61) the Hoare annotation is: true [2021-02-21 21:18:24,361 INFO L192 CegarLoopUtils]: At program point L61-4(line 61) the Hoare annotation is: true [2021-02-21 21:18:24,362 INFO L192 CegarLoopUtils]: At program point L61-5(line 61) the Hoare annotation is: true [2021-02-21 21:18:24,362 INFO L192 CegarLoopUtils]: At program point L61-6(line 61) the Hoare annotation is: true [2021-02-21 21:18:24,362 INFO L192 CegarLoopUtils]: At program point L61-7(line 61) the Hoare annotation is: true [2021-02-21 21:18:24,362 INFO L192 CegarLoopUtils]: At program point L61-8(line 61) the Hoare annotation is: true [2021-02-21 21:18:24,362 INFO L192 CegarLoopUtils]: At program point L61-9(line 61) the Hoare annotation is: true [2021-02-21 21:18:24,362 INFO L185 CegarLoopUtils]: At program point L78(lines 72 81) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2021-02-21 21:18:24,363 INFO L192 CegarLoopUtils]: At program point L70-1(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,363 INFO L192 CegarLoopUtils]: At program point L70-2(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,363 INFO L192 CegarLoopUtils]: At program point L70-3(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,363 INFO L192 CegarLoopUtils]: At program point L70-4(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,363 INFO L192 CegarLoopUtils]: At program point L70-6(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,363 INFO L192 CegarLoopUtils]: At program point L70-7(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,363 INFO L192 CegarLoopUtils]: At program point L62(line 62) the Hoare annotation is: true [2021-02-21 21:18:24,364 INFO L192 CegarLoopUtils]: At program point L70-8(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,364 INFO L192 CegarLoopUtils]: At program point L70-10(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,364 INFO L192 CegarLoopUtils]: At program point L70-11(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,364 INFO L192 CegarLoopUtils]: At program point L70-12(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,364 INFO L192 CegarLoopUtils]: At program point L70-13(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,364 INFO L192 CegarLoopUtils]: At program point L70-14(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,364 INFO L192 CegarLoopUtils]: At program point L70-16(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,365 INFO L192 CegarLoopUtils]: At program point L70-17(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,365 INFO L192 CegarLoopUtils]: At program point L70-18(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,365 INFO L192 CegarLoopUtils]: At program point L70-19(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,365 INFO L192 CegarLoopUtils]: At program point L70-20(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,365 INFO L192 CegarLoopUtils]: At program point L70-21(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,365 INFO L192 CegarLoopUtils]: At program point L70-22(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,366 INFO L192 CegarLoopUtils]: At program point L70-23(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,366 INFO L192 CegarLoopUtils]: At program point L70-24(line 70) the Hoare annotation is: true [2021-02-21 21:18:24,366 INFO L192 CegarLoopUtils]: At program point L71(line 71) the Hoare annotation is: true [2021-02-21 21:18:24,366 INFO L192 CegarLoopUtils]: At program point L71-1(line 71) the Hoare annotation is: true [2021-02-21 21:18:24,366 INFO L192 CegarLoopUtils]: At program point L71-2(line 71) the Hoare annotation is: true [2021-02-21 21:18:24,366 INFO L192 CegarLoopUtils]: At program point L71-4(line 71) the Hoare annotation is: true [2021-02-21 21:18:24,366 INFO L192 CegarLoopUtils]: At program point L71-5(line 71) the Hoare annotation is: true [2021-02-21 21:18:24,367 INFO L192 CegarLoopUtils]: At program point L71-6(line 71) the Hoare annotation is: true [2021-02-21 21:18:24,367 INFO L192 CegarLoopUtils]: At program point L71-7(line 71) the Hoare annotation is: true [2021-02-21 21:18:24,367 INFO L192 CegarLoopUtils]: At program point L71-8(line 71) the Hoare annotation is: true [2021-02-21 21:18:24,367 INFO L192 CegarLoopUtils]: At program point L71-9(line 71) the Hoare annotation is: true [2021-02-21 21:18:24,367 INFO L192 CegarLoopUtils]: At program point L63-1(lines 63 84) the Hoare annotation is: true [2021-02-21 21:18:24,367 INFO L192 CegarLoopUtils]: At program point L71-11(line 71) the Hoare annotation is: true [2021-02-21 21:18:24,368 INFO L192 CegarLoopUtils]: At program point L63-3(lines 63 84) the Hoare annotation is: true [2021-02-21 21:18:24,368 INFO L192 CegarLoopUtils]: At program point L71-12(line 71) the Hoare annotation is: true [2021-02-21 21:18:24,368 INFO L192 CegarLoopUtils]: At program point L63-4(lines 63 84) the Hoare annotation is: true [2021-02-21 21:18:24,368 INFO L192 CegarLoopUtils]: At program point L71-13(lines 65 83) the Hoare annotation is: true [2021-02-21 21:18:24,368 INFO L192 CegarLoopUtils]: At program point L80(line 80) the Hoare annotation is: true [2021-02-21 21:18:24,368 INFO L192 CegarLoopUtils]: At program point L64(line 64) the Hoare annotation is: true [2021-02-21 21:18:24,368 INFO L192 CegarLoopUtils]: At program point L64-1(line 64) the Hoare annotation is: true [2021-02-21 21:18:24,368 INFO L192 CegarLoopUtils]: At program point L73(lines 73 75) the Hoare annotation is: true [2021-02-21 21:18:24,369 INFO L192 CegarLoopUtils]: At program point L65(line 65) the Hoare annotation is: true [2021-02-21 21:18:24,369 INFO L192 CegarLoopUtils]: At program point L65-1(line 65) the Hoare annotation is: true [2021-02-21 21:18:24,369 INFO L192 CegarLoopUtils]: At program point L65-2(lines 65 83) the Hoare annotation is: true [2021-02-21 21:18:24,369 INFO L192 CegarLoopUtils]: At program point L65-3(line 65) the Hoare annotation is: true [2021-02-21 21:18:24,369 INFO L192 CegarLoopUtils]: At program point L74(line 74) the Hoare annotation is: true [2021-02-21 21:18:24,369 INFO L192 CegarLoopUtils]: At program point L66(line 66) the Hoare annotation is: true [2021-02-21 21:18:24,370 INFO L192 CegarLoopUtils]: At program point parse_expression_listFINAL(lines 58 86) the Hoare annotation is: true [2021-02-21 21:18:24,370 INFO L185 CegarLoopUtils]: At program point parse_expression_listENTRY(lines 58 86) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-21 21:18:24,370 INFO L192 CegarLoopUtils]: At program point L67-1(line 67) the Hoare annotation is: true [2021-02-21 21:18:24,370 INFO L192 CegarLoopUtils]: At program point L67-2(line 67) the Hoare annotation is: true [2021-02-21 21:18:24,370 INFO L192 CegarLoopUtils]: At program point L67-4(line 67) the Hoare annotation is: true [2021-02-21 21:18:24,370 INFO L192 CegarLoopUtils]: At program point L67-5(line 67) the Hoare annotation is: true [2021-02-21 21:18:24,371 INFO L192 CegarLoopUtils]: At program point L67-6(line 67) the Hoare annotation is: true [2021-02-21 21:18:24,371 INFO L192 CegarLoopUtils]: At program point L67-7(line 67) the Hoare annotation is: true [2021-02-21 21:18:24,371 INFO L192 CegarLoopUtils]: At program point parse_expression_listEXIT(lines 58 86) the Hoare annotation is: true [2021-02-21 21:18:24,371 INFO L192 CegarLoopUtils]: At program point L67-8(line 67) the Hoare annotation is: true [2021-02-21 21:18:24,371 INFO L192 CegarLoopUtils]: At program point L67-9(line 67) the Hoare annotation is: true [2021-02-21 21:18:24,371 INFO L185 CegarLoopUtils]: At program point L67-11(line 67) the Hoare annotation is: |parse_expression_list_#t~short10| [2021-02-21 21:18:24,371 INFO L185 CegarLoopUtils]: At program point L67-12(line 67) the Hoare annotation is: |parse_expression_list_#t~short10| [2021-02-21 21:18:24,372 INFO L185 CegarLoopUtils]: At program point L67-13(line 67) the Hoare annotation is: |parse_expression_list_#t~short10| [2021-02-21 21:18:24,372 INFO L192 CegarLoopUtils]: At program point L67-14(line 67) the Hoare annotation is: true [2021-02-21 21:18:24,372 INFO L192 CegarLoopUtils]: At program point L67-15(line 67) the Hoare annotation is: true [2021-02-21 21:18:24,372 INFO L192 CegarLoopUtils]: At program point L84(lines 63 84) the Hoare annotation is: true [2021-02-21 21:18:24,372 INFO L192 CegarLoopUtils]: At program point L67-16(line 67) the Hoare annotation is: true [2021-02-21 21:18:24,372 INFO L192 CegarLoopUtils]: At program point L84-1(line 84) the Hoare annotation is: true [2021-02-21 21:18:24,373 INFO L192 CegarLoopUtils]: At program point L67-17(line 67) the Hoare annotation is: true [2021-02-21 21:18:24,373 INFO L192 CegarLoopUtils]: At program point L84-2(line 84) the Hoare annotation is: true [2021-02-21 21:18:24,373 INFO L192 CegarLoopUtils]: At program point L67-18(line 67) the Hoare annotation is: true [2021-02-21 21:18:24,373 INFO L185 CegarLoopUtils]: At program point L76(line 76) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2021-02-21 21:18:24,373 INFO L185 CegarLoopUtils]: At program point L76-1(line 76) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2021-02-21 21:18:24,373 INFO L192 CegarLoopUtils]: At program point L68(line 68) the Hoare annotation is: true [2021-02-21 21:18:24,373 INFO L192 CegarLoopUtils]: At program point L68-1(line 68) the Hoare annotation is: true [2021-02-21 21:18:24,374 INFO L192 CegarLoopUtils]: At program point L68-2(line 68) the Hoare annotation is: true [2021-02-21 21:18:24,374 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 21:18:24,374 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-21 21:18:24,374 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2021-02-21 21:18:24,374 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-21 21:18:24,374 INFO L192 CegarLoopUtils]: At program point L12-1(line 12) the Hoare annotation is: true [2021-02-21 21:18:24,374 INFO L192 CegarLoopUtils]: At program point L12-2(line 12) the Hoare annotation is: true [2021-02-21 21:18:24,375 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2021-02-21 21:18:24,375 INFO L192 CegarLoopUtils]: At program point L12-3(line 12) the Hoare annotation is: true [2021-02-21 21:18:24,375 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-21 21:18:24,375 INFO L192 CegarLoopUtils]: At program point r_strncpyFINAL(line 42) the Hoare annotation is: true [2021-02-21 21:18:24,375 INFO L192 CegarLoopUtils]: At program point r_strncpyEXIT(line 42) the Hoare annotation is: true [2021-02-21 21:18:24,375 INFO L192 CegarLoopUtils]: At program point L42(line 42) the Hoare annotation is: true [2021-02-21 21:18:24,376 INFO L192 CegarLoopUtils]: At program point r_strncpyENTRY(line 42) the Hoare annotation is: true [2021-02-21 21:18:24,376 INFO L192 CegarLoopUtils]: At program point L42-1(line 42) the Hoare annotation is: true [2021-02-21 21:18:24,376 INFO L192 CegarLoopUtils]: At program point L42-2(line 42) the Hoare annotation is: true [2021-02-21 21:18:24,376 INFO L192 CegarLoopUtils]: At program point L42-3(line 42) the Hoare annotation is: true [2021-02-21 21:18:24,376 INFO L192 CegarLoopUtils]: At program point L42-4(line 42) the Hoare annotation is: true [2021-02-21 21:18:24,376 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-21 21:18:24,376 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 21:18:24,377 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-21 21:18:24,377 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-21 21:18:24,377 INFO L192 CegarLoopUtils]: At program point L95(line 95) the Hoare annotation is: true [2021-02-21 21:18:24,377 INFO L192 CegarLoopUtils]: At program point L93(line 93) the Hoare annotation is: true [2021-02-21 21:18:24,377 INFO L192 CegarLoopUtils]: At program point L91(line 91) the Hoare annotation is: true [2021-02-21 21:18:24,377 INFO L192 CegarLoopUtils]: At program point L91-1(line 91) the Hoare annotation is: true [2021-02-21 21:18:24,377 INFO L192 CegarLoopUtils]: At program point L89(line 89) the Hoare annotation is: true [2021-02-21 21:18:24,377 INFO L192 CegarLoopUtils]: At program point L91-2(line 91) the Hoare annotation is: true [2021-02-21 21:18:24,378 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 87 96) the Hoare annotation is: true [2021-02-21 21:18:24,378 INFO L192 CegarLoopUtils]: At program point L89-1(line 89) the Hoare annotation is: true [2021-02-21 21:18:24,378 INFO L192 CegarLoopUtils]: At program point L89-2(line 89) the Hoare annotation is: true [2021-02-21 21:18:24,378 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 87 96) the Hoare annotation is: true [2021-02-21 21:18:24,378 INFO L192 CegarLoopUtils]: At program point L94(line 94) the Hoare annotation is: true [2021-02-21 21:18:24,378 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 87 96) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-21 21:18:24,378 INFO L192 CegarLoopUtils]: At program point L94-1(line 94) the Hoare annotation is: true [2021-02-21 21:18:24,379 INFO L192 CegarLoopUtils]: At program point L90-2(lines 90 92) the Hoare annotation is: true [2021-02-21 21:18:24,379 INFO L192 CegarLoopUtils]: At program point L90-3(line 90) the Hoare annotation is: true [2021-02-21 21:18:24,379 INFO L192 CegarLoopUtils]: At program point L90-4(line 90) the Hoare annotation is: true [2021-02-21 21:18:24,379 INFO L192 CegarLoopUtils]: At program point L90-5(lines 90 92) the Hoare annotation is: true [2021-02-21 21:18:24,379 INFO L192 CegarLoopUtils]: At program point L90-6(lines 90 92) the Hoare annotation is: true [2021-02-21 21:18:24,379 INFO L185 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-21 21:18:24,379 INFO L185 CegarLoopUtils]: At program point L15(lines 15 17) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-21 21:18:24,380 INFO L185 CegarLoopUtils]: At program point L16-1(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-21 21:18:24,380 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 14 19) the Hoare annotation is: true [2021-02-21 21:18:24,380 INFO L185 CegarLoopUtils]: At program point L15-2(lines 14 19) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-21 21:18:24,380 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 14 19) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-21 21:18:24,380 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-21 21:18:24,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 09:18:24 BoogieIcfgContainer [2021-02-21 21:18:24,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 21:18:24,401 INFO L168 Benchmark]: Toolchain (without parser) took 4546.87 ms. Allocated memory was 154.1 MB in the beginning and 185.6 MB in the end (delta: 31.5 MB). Free memory was 129.6 MB in the beginning and 117.3 MB in the end (delta: 12.3 MB). Peak memory consumption was 101.7 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:24,402 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 154.1 MB. Free memory was 127.9 MB in the beginning and 127.5 MB in the end (delta: 445.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 21:18:24,403 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.19 ms. Allocated memory is still 154.1 MB. Free memory was 128.6 MB in the beginning and 116.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:24,404 INFO L168 Benchmark]: Boogie Preprocessor took 52.89 ms. Allocated memory is still 154.1 MB. Free memory was 116.8 MB in the beginning and 114.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:24,405 INFO L168 Benchmark]: RCFGBuilder took 723.85 ms. Allocated memory is still 154.1 MB. Free memory was 114.7 MB in the beginning and 127.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 30.9 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:24,405 INFO L168 Benchmark]: TraceAbstraction took 3401.24 ms. Allocated memory was 154.1 MB in the beginning and 185.6 MB in the end (delta: 31.5 MB). Free memory was 127.8 MB in the beginning and 117.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 100.1 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:24,409 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 154.1 MB. Free memory was 127.9 MB in the beginning and 127.5 MB in the end (delta: 445.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 347.19 ms. Allocated memory is still 154.1 MB. Free memory was 128.6 MB in the beginning and 116.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 52.89 ms. Allocated memory is still 154.1 MB. Free memory was 116.8 MB in the beginning and 114.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 723.85 ms. Allocated memory is still 154.1 MB. Free memory was 114.7 MB in the beginning and 127.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 30.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3401.24 ms. Allocated memory was 154.1 MB in the beginning and 185.6 MB in the end (delta: 31.5 MB). Free memory was 127.8 MB in the beginning and 117.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 100.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 58]: Procedure Contract for parse_expression_list Derived contract for procedure parse_expression_list: 1 - ProcedureContractResult [Line: 42]: Procedure Contract for r_strncpy Derived contract for procedure r_strncpy: 1 - ProcedureContractResult [Line: 87]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 145 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 628 SDtfs, 102 SDslu, 812 SDs, 0 SdLazy, 732 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 140 LocationsWithAnnotation, 482 PreInvPairs, 613 NumberOfFragments, 247 HoareAnnotationTreeSize, 482 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 140 FomulaSimplificationsInter, 419 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...