/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 16:14:04,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 16:14:04,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 16:14:04,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 16:14:04,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 16:14:04,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 16:14:04,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 16:14:04,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 16:14:04,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 16:14:04,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 16:14:04,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 16:14:04,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 16:14:04,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 16:14:04,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 16:14:04,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 16:14:04,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 16:14:04,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 16:14:04,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 16:14:04,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 16:14:04,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 16:14:04,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 16:14:04,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 16:14:04,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 16:14:04,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 16:14:04,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 16:14:04,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 16:14:04,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 16:14:04,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 16:14:04,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 16:14:04,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 16:14:04,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 16:14:04,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 16:14:04,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 16:14:04,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 16:14:04,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 16:14:04,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 16:14:04,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 16:14:04,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 16:14:04,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 16:14:04,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 16:14:04,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 16:14:04,669 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-21 16:14:04,704 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 16:14:04,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 16:14:04,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 16:14:04,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 16:14:04,707 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 16:14:04,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 16:14:04,708 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 16:14:04,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 16:14:04,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 16:14:04,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 16:14:04,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 16:14:04,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 16:14:04,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 16:14:04,709 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 16:14:04,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 16:14:04,709 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 16:14:04,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 16:14:04,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 16:14:04,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 16:14:04,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 16:14:04,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 16:14:04,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 16:14:04,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 16:14:04,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 16:14:04,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 16:14:04,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 16:14:04,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 16:14:04,712 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 16:14:04,712 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 16:14:05,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 16:14:05,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 16:14:05,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 16:14:05,151 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 16:14:05,152 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 16:14:05,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i [2021-02-21 16:14:05,237 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/271c2375c/f7ab5339c82841a4be260dce47dd83b6/FLAGa588f37d1 [2021-02-21 16:14:06,014 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 16:14:06,015 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i [2021-02-21 16:14:06,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/271c2375c/f7ab5339c82841a4be260dce47dd83b6/FLAGa588f37d1 [2021-02-21 16:14:06,247 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/271c2375c/f7ab5339c82841a4be260dce47dd83b6 [2021-02-21 16:14:06,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 16:14:06,269 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 16:14:06,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 16:14:06,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 16:14:06,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 16:14:06,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:14:06" (1/1) ... [2021-02-21 16:14:06,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12af5fb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:06, skipping insertion in model container [2021-02-21 16:14:06,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:14:06" (1/1) ... [2021-02-21 16:14:06,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 16:14:06,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 16:14:06,824 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i[24473,24486] [2021-02-21 16:14:06,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:14:06,840 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 16:14:06,901 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i[24473,24486] [2021-02-21 16:14:06,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:14:07,036 INFO L208 MainTranslator]: Completed translation [2021-02-21 16:14:07,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:07 WrapperNode [2021-02-21 16:14:07,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 16:14:07,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 16:14:07,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 16:14:07,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 16:14:07,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:07" (1/1) ... [2021-02-21 16:14:07,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:07" (1/1) ... [2021-02-21 16:14:07,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:07" (1/1) ... [2021-02-21 16:14:07,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:07" (1/1) ... [2021-02-21 16:14:07,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:07" (1/1) ... [2021-02-21 16:14:07,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:07" (1/1) ... [2021-02-21 16:14:07,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:07" (1/1) ... [2021-02-21 16:14:07,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 16:14:07,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 16:14:07,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 16:14:07,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 16:14:07,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:07" (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 16:14:07,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 16:14:07,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 16:14:07,306 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 16:14:07,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-02-21 16:14:07,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-02-21 16:14:07,306 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-02-21 16:14:07,306 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2021-02-21 16:14:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2021-02-21 16:14:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2021-02-21 16:14:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_get_data_at [2021-02-21 16:14:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_update_at [2021-02-21 16:14:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 16:14:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 16:14:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 16:14:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-21 16:14:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-21 16:14:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 16:14:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 16:14:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-02-21 16:14:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-02-21 16:14:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-21 16:14:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-21 16:14:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-21 16:14:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-21 16:14:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-21 16:14:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-21 16:14:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-21 16:14:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-21 16:14:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-21 16:14:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-21 16:14:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-21 16:14:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-21 16:14:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-21 16:14:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-21 16:14:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-21 16:14:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-21 16:14:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-21 16:14:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-21 16:14:07,312 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-21 16:14:07,312 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-21 16:14:07,312 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-21 16:14:07,312 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-21 16:14:07,312 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-21 16:14:07,312 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-21 16:14:07,313 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-21 16:14:07,313 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-21 16:14:07,313 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-21 16:14:07,313 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-21 16:14:07,313 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-21 16:14:07,313 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-21 16:14:07,314 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-21 16:14:07,314 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-21 16:14:07,314 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-21 16:14:07,314 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-21 16:14:07,314 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-21 16:14:07,314 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-21 16:14:07,314 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-21 16:14:07,315 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-21 16:14:07,315 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-21 16:14:07,315 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-21 16:14:07,315 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-21 16:14:07,315 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-21 16:14:07,315 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-21 16:14:07,316 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-21 16:14:07,316 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-21 16:14:07,316 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-21 16:14:07,316 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-21 16:14:07,316 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-21 16:14:07,316 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-21 16:14:07,317 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-21 16:14:07,317 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 16:14:07,317 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-21 16:14:07,317 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-21 16:14:07,317 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-21 16:14:07,317 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-21 16:14:07,317 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-21 16:14:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-21 16:14:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-21 16:14:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-21 16:14:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-21 16:14:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-21 16:14:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-21 16:14:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-21 16:14:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-21 16:14:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-21 16:14:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-21 16:14:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-21 16:14:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-21 16:14:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-21 16:14:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-21 16:14:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-21 16:14:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-21 16:14:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-21 16:14:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-21 16:14:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-21 16:14:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-21 16:14:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-21 16:14:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-21 16:14:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-21 16:14:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-21 16:14:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-21 16:14:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-21 16:14:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-21 16:14:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-21 16:14:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-21 16:14:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-21 16:14:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-21 16:14:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-21 16:14:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-21 16:14:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-21 16:14:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-21 16:14:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-21 16:14:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-21 16:14:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-21 16:14:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-21 16:14:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-21 16:14:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-21 16:14:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-21 16:14:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-21 16:14:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-21 16:14:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-21 16:14:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-21 16:14:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-02-21 16:14:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2021-02-21 16:14:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 16:14:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-21 16:14:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 16:14:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2021-02-21 16:14:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2021-02-21 16:14:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-21 16:14:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 16:14:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure dll_get_data_at [2021-02-21 16:14:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 16:14:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure dll_update_at [2021-02-21 16:14:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 16:14:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 16:14:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 16:14:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 16:14:07,921 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-02-21 16:14:08,133 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 16:14:08,134 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-02-21 16:14:08,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:14:08 BoogieIcfgContainer [2021-02-21 16:14:08,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 16:14:08,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 16:14:08,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 16:14:08,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 16:14:08,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 04:14:06" (1/3) ... [2021-02-21 16:14:08,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b154b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:14:08, skipping insertion in model container [2021-02-21 16:14:08,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:07" (2/3) ... [2021-02-21 16:14:08,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b154b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:14:08, skipping insertion in model container [2021-02-21 16:14:08,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:14:08" (3/3) ... [2021-02-21 16:14:08,161 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2n_update_all_reverse.i [2021-02-21 16:14:08,169 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 16:14:08,176 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 16:14:08,198 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 16:14:08,252 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 16:14:08,253 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 16:14:08,253 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 16:14:08,253 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 16:14:08,254 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 16:14:08,254 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 16:14:08,255 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 16:14:08,255 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 16:14:08,297 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2021-02-21 16:14:08,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-21 16:14:08,308 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:14:08,309 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] [2021-02-21 16:14:08,309 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:14:08,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:14:08,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1957040159, now seen corresponding path program 1 times [2021-02-21 16:14:08,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:14:08,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914617346] [2021-02-21 16:14:08,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:14:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:08,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:08,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:08,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:08,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:08,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:14:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:08,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:08,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:08,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:14:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:08,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:08,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:08,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-21 16:14:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:08,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:08,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:08,792 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 16:14:08,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914617346] [2021-02-21 16:14:08,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:14:08,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 16:14:08,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681550224] [2021-02-21 16:14:08,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 16:14:08,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:14:08,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 16:14:08,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 16:14:08,827 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 4 states. [2021-02-21 16:14:09,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:14:09,382 INFO L93 Difference]: Finished difference Result 123 states and 178 transitions. [2021-02-21 16:14:09,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 16:14:09,385 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2021-02-21 16:14:09,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:14:09,396 INFO L225 Difference]: With dead ends: 123 [2021-02-21 16:14:09,396 INFO L226 Difference]: Without dead ends: 64 [2021-02-21 16:14:09,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-21 16:14:09,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-02-21 16:14:09,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 38. [2021-02-21 16:14:09,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-02-21 16:14:09,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2021-02-21 16:14:09,456 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 25 [2021-02-21 16:14:09,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:14:09,456 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2021-02-21 16:14:09,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 16:14:09,457 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2021-02-21 16:14:09,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-21 16:14:09,458 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:14:09,458 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] [2021-02-21 16:14:09,458 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 16:14:09,459 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:14:09,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:14:09,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1053461126, now seen corresponding path program 1 times [2021-02-21 16:14:09,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:14:09,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015649490] [2021-02-21 16:14:09,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:14:09,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:09,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:09,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:09,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:09,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:09,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:09,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:09,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:14:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:09,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:09,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:09,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:14:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:09,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:09,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:09,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:09,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:09,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-21 16:14:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:09,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:09,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:09,733 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 16:14:09,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015649490] [2021-02-21 16:14:09,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:14:09,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-21 16:14:09,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470672467] [2021-02-21 16:14:09,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-21 16:14:09,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:14:09,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-21 16:14:09,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-21 16:14:09,741 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 7 states. [2021-02-21 16:14:10,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:14:10,257 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2021-02-21 16:14:10,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-21 16:14:10,258 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2021-02-21 16:14:10,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:14:10,260 INFO L225 Difference]: With dead ends: 68 [2021-02-21 16:14:10,260 INFO L226 Difference]: Without dead ends: 43 [2021-02-21 16:14:10,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-02-21 16:14:10,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-02-21 16:14:10,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2021-02-21 16:14:10,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-02-21 16:14:10,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2021-02-21 16:14:10,271 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 25 [2021-02-21 16:14:10,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:14:10,272 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2021-02-21 16:14:10,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-21 16:14:10,272 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2021-02-21 16:14:10,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-02-21 16:14:10,273 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:14:10,274 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] [2021-02-21 16:14:10,274 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 16:14:10,274 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:14:10,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:14:10,275 INFO L82 PathProgramCache]: Analyzing trace with hash -524940760, now seen corresponding path program 1 times [2021-02-21 16:14:10,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:14:10,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387190316] [2021-02-21 16:14:10,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:14:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:10,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:10,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:10,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:10,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:10,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:14:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:10,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:10,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:10,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:14:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:10,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:10,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:14:10,427 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:10,428 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:10,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-02-21 16:14:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:10,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:10,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:10,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:14:10,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387190316] [2021-02-21 16:14:10,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:14:10,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-21 16:14:10,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350279433] [2021-02-21 16:14:10,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-21 16:14:10,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:14:10,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-21 16:14:10,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-21 16:14:10,441 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 5 states. [2021-02-21 16:14:10,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:14:10,743 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2021-02-21 16:14:10,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-21 16:14:10,744 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2021-02-21 16:14:10,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:14:10,745 INFO L225 Difference]: With dead ends: 73 [2021-02-21 16:14:10,745 INFO L226 Difference]: Without dead ends: 43 [2021-02-21 16:14:10,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-02-21 16:14:10,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-02-21 16:14:10,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2021-02-21 16:14:10,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-02-21 16:14:10,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2021-02-21 16:14:10,755 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 30 [2021-02-21 16:14:10,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:14:10,755 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2021-02-21 16:14:10,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-21 16:14:10,756 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2021-02-21 16:14:10,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-02-21 16:14:10,757 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:14:10,757 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] [2021-02-21 16:14:10,757 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 16:14:10,757 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:14:10,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:14:10,758 INFO L82 PathProgramCache]: Analyzing trace with hash 2081082794, now seen corresponding path program 1 times [2021-02-21 16:14:10,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:14:10,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265560599] [2021-02-21 16:14:10,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:14:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:10,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:10,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:10,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:10,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:10,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:10,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:10,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:14:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:10,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:10,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:10,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:14:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:10,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:10,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:10,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:10,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:14:10,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:10,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:10,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-02-21 16:14:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:10,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:10,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:10,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:14:10,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265560599] [2021-02-21 16:14:10,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399377780] [2021-02-21 16:14:10,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-21 16:14:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:11,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-21 16:14:11,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-21 16:14:11,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:14:11,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:14:11,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:14:11,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:14:11,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:14:11,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:14:11,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 16:14:11,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 16:14:11,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:14:11,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 16:14:11,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 16:14:11,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 16:14:11,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:14:11,470 WARN L141 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-02-21 16:14:11,471 WARN L147 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size 9 [2021-02-21 16:14:11,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:14:11,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 16:14:11,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 16:14:11,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 16:14:11,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:14:11,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:14:11,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:14:11,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 16:14:11,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:14:11,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:14:11,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:14:11,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 16:14:11,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 16:14:11,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 16:14:11,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:11,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:11,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:14:11,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-21 16:14:11,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 10 [2021-02-21 16:14:11,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25357787] [2021-02-21 16:14:11,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 16:14:11,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:14:11,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 16:14:11,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-02-21 16:14:11,616 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand 10 states. [2021-02-21 16:14:12,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:14:12,062 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2021-02-21 16:14:12,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-21 16:14:12,063 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2021-02-21 16:14:12,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:14:12,064 INFO L225 Difference]: With dead ends: 73 [2021-02-21 16:14:12,064 INFO L226 Difference]: Without dead ends: 48 [2021-02-21 16:14:12,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-02-21 16:14:12,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-02-21 16:14:12,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2021-02-21 16:14:12,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2021-02-21 16:14:12,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2021-02-21 16:14:12,073 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 30 [2021-02-21 16:14:12,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:14:12,074 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2021-02-21 16:14:12,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 16:14:12,074 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2021-02-21 16:14:12,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-02-21 16:14:12,075 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:14:12,075 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-21 16:14:12,289 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-21 16:14:12,290 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:14:12,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:14:12,292 INFO L82 PathProgramCache]: Analyzing trace with hash 2106989956, now seen corresponding path program 1 times [2021-02-21 16:14:12,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:14:12,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956045940] [2021-02-21 16:14:12,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:14:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:12,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:12,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:12,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:12,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:14:12,366 WARN L141 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-02-21 16:14:12,368 WARN L147 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size 9 [2021-02-21 16:14:12,386 WARN L141 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-02-21 16:14:12,387 WARN L147 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size 1 [2021-02-21 16:14:12,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:12,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:12,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:14:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:12,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:12,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:12,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:14:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:12,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:12,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:12,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-21 16:14:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:14:12,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:14:12,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:14:12,487 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-02-21 16:14:12,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956045940] [2021-02-21 16:14:12,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:14:12,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 16:14:12,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579637454] [2021-02-21 16:14:12,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 16:14:12,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:14:12,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 16:14:12,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-21 16:14:12,490 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 6 states. [2021-02-21 16:14:12,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:14:12,761 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2021-02-21 16:14:12,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-21 16:14:12,762 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2021-02-21 16:14:12,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:14:12,762 INFO L225 Difference]: With dead ends: 49 [2021-02-21 16:14:12,762 INFO L226 Difference]: Without dead ends: 0 [2021-02-21 16:14:12,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-02-21 16:14:12,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-21 16:14:12,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-21 16:14:12,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-21 16:14:12,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-21 16:14:12,764 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2021-02-21 16:14:12,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:14:12,764 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-21 16:14:12,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 16:14:12,765 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-21 16:14:12,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-21 16:14:12,765 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 16:14:12,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-21 16:14:13,181 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-02-21 16:14:13,181 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-02-21 16:14:13,181 INFO L189 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-02-21 16:14:13,182 INFO L185 CegarLoopUtils]: At program point dll_update_atENTRY(lines 617 623) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2021-02-21 16:14:13,182 INFO L189 CegarLoopUtils]: For program point dll_update_atEXIT(lines 617 623) no Hoare annotation was computed. [2021-02-21 16:14:13,182 INFO L185 CegarLoopUtils]: At program point L618-2(lines 618 621) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2021-02-21 16:14:13,182 INFO L189 CegarLoopUtils]: For program point L618-3(lines 618 621) no Hoare annotation was computed. [2021-02-21 16:14:13,182 INFO L189 CegarLoopUtils]: For program point dll_update_atFINAL(lines 617 623) no Hoare annotation was computed. [2021-02-21 16:14:13,183 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-21 16:14:13,183 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |old(#t~string1.offset)| |#t~string1.offset|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-21 16:14:13,183 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-21 16:14:13,183 INFO L192 CegarLoopUtils]: At program point myexitENTRY(lines 572 574) the Hoare annotation is: true [2021-02-21 16:14:13,184 INFO L192 CegarLoopUtils]: At program point L573(line 573) the Hoare annotation is: true [2021-02-21 16:14:13,184 INFO L189 CegarLoopUtils]: For program point myexitEXIT(lines 572 574) no Hoare annotation was computed. [2021-02-21 16:14:13,184 INFO L185 CegarLoopUtils]: At program point dll_createENTRY(lines 585 602) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2021-02-21 16:14:13,185 INFO L189 CegarLoopUtils]: For program point dll_createFINAL(lines 585 602) no Hoare annotation was computed. [2021-02-21 16:14:13,185 INFO L189 CegarLoopUtils]: For program point L595(lines 595 597) no Hoare annotation was computed. [2021-02-21 16:14:13,185 INFO L189 CegarLoopUtils]: For program point L595-2(lines 595 597) no Hoare annotation was computed. [2021-02-21 16:14:13,185 INFO L189 CegarLoopUtils]: For program point L589(lines 589 591) no Hoare annotation was computed. [2021-02-21 16:14:13,185 INFO L189 CegarLoopUtils]: For program point L589-1(lines 589 591) no Hoare annotation was computed. [2021-02-21 16:14:13,185 INFO L192 CegarLoopUtils]: At program point L587-2(lines 587 600) the Hoare annotation is: true [2021-02-21 16:14:13,185 INFO L189 CegarLoopUtils]: For program point L587-3(lines 587 600) no Hoare annotation was computed. [2021-02-21 16:14:13,185 INFO L189 CegarLoopUtils]: For program point dll_createEXIT(lines 585 602) no Hoare annotation was computed. [2021-02-21 16:14:13,186 INFO L192 CegarLoopUtils]: At program point L590(line 590) the Hoare annotation is: true [2021-02-21 16:14:13,186 INFO L189 CegarLoopUtils]: For program point __bswap_32ENTRY(lines 74 78) no Hoare annotation was computed. [2021-02-21 16:14:13,186 INFO L189 CegarLoopUtils]: For program point __bswap_32FINAL(lines 74 78) no Hoare annotation was computed. [2021-02-21 16:14:13,186 INFO L189 CegarLoopUtils]: For program point __bswap_32EXIT(lines 74 78) no Hoare annotation was computed. [2021-02-21 16:14:13,186 INFO L189 CegarLoopUtils]: For program point __bswap_64ENTRY(lines 79 83) no Hoare annotation was computed. [2021-02-21 16:14:13,186 INFO L189 CegarLoopUtils]: For program point __bswap_64FINAL(lines 79 83) no Hoare annotation was computed. [2021-02-21 16:14:13,186 INFO L189 CegarLoopUtils]: For program point __bswap_64EXIT(lines 79 83) no Hoare annotation was computed. [2021-02-21 16:14:13,186 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-21 16:14:13,186 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 16:14:13,186 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-21 16:14:13,187 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-21 16:14:13,187 INFO L192 CegarLoopUtils]: At program point L611-2(lines 611 614) the Hoare annotation is: true [2021-02-21 16:14:13,187 INFO L189 CegarLoopUtils]: For program point L611-3(lines 611 614) no Hoare annotation was computed. [2021-02-21 16:14:13,188 INFO L189 CegarLoopUtils]: For program point dll_get_data_atFINAL(lines 610 616) no Hoare annotation was computed. [2021-02-21 16:14:13,188 INFO L192 CegarLoopUtils]: At program point dll_get_data_atENTRY(lines 610 616) the Hoare annotation is: true [2021-02-21 16:14:13,188 INFO L189 CegarLoopUtils]: For program point dll_get_data_atEXIT(lines 610 616) no Hoare annotation was computed. [2021-02-21 16:14:13,189 INFO L185 CegarLoopUtils]: At program point L636(lines 624 643) the Hoare annotation is: false [2021-02-21 16:14:13,189 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 624 643) no Hoare annotation was computed. [2021-02-21 16:14:13,189 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 624 643) no Hoare annotation was computed. [2021-02-21 16:14:13,190 INFO L189 CegarLoopUtils]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 641) no Hoare annotation was computed. [2021-02-21 16:14:13,190 INFO L189 CegarLoopUtils]: For program point L639(line 639) no Hoare annotation was computed. [2021-02-21 16:14:13,190 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 624 643) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2021-02-21 16:14:13,190 INFO L185 CegarLoopUtils]: At program point L635(line 635) the Hoare annotation is: false [2021-02-21 16:14:13,190 INFO L189 CegarLoopUtils]: For program point L635-1(line 635) no Hoare annotation was computed. [2021-02-21 16:14:13,190 INFO L189 CegarLoopUtils]: For program point L635-2(lines 635 637) no Hoare annotation was computed. [2021-02-21 16:14:13,190 INFO L185 CegarLoopUtils]: At program point L631(line 631) the Hoare annotation is: (= main_~len~0 2) [2021-02-21 16:14:13,190 INFO L189 CegarLoopUtils]: For program point L633-2(lines 633 638) no Hoare annotation was computed. [2021-02-21 16:14:13,191 INFO L189 CegarLoopUtils]: For program point L631-1(lines 629 632) no Hoare annotation was computed. [2021-02-21 16:14:13,191 INFO L185 CegarLoopUtils]: At program point L633-3(lines 633 638) the Hoare annotation is: (and (= main_~len~0 2) (<= main_~len~0 (+ main_~i~0 1))) [2021-02-21 16:14:13,191 INFO L192 CegarLoopUtils]: At program point L633-4(lines 633 638) the Hoare annotation is: true [2021-02-21 16:14:13,191 INFO L185 CegarLoopUtils]: At program point L627(line 627) the Hoare annotation is: (and (= main_~len~0 2) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2021-02-21 16:14:13,191 INFO L185 CegarLoopUtils]: At program point L629-2(lines 629 632) the Hoare annotation is: (= main_~len~0 2) [2021-02-21 16:14:13,191 INFO L189 CegarLoopUtils]: For program point L627-1(line 627) no Hoare annotation was computed. [2021-02-21 16:14:13,191 INFO L189 CegarLoopUtils]: For program point L629-3(lines 629 632) no Hoare annotation was computed. [2021-02-21 16:14:13,191 INFO L189 CegarLoopUtils]: For program point dll_destroyEXIT(lines 603 609) no Hoare annotation was computed. [2021-02-21 16:14:13,192 INFO L185 CegarLoopUtils]: At program point dll_destroyENTRY(lines 603 609) the Hoare annotation is: (= |old(#valid)| |#valid|) [2021-02-21 16:14:13,192 INFO L192 CegarLoopUtils]: At program point L604-2(lines 604 608) the Hoare annotation is: true [2021-02-21 16:14:13,192 INFO L189 CegarLoopUtils]: For program point L604-3(lines 603 609) no Hoare annotation was computed. [2021-02-21 16:14:13,192 INFO L189 CegarLoopUtils]: For program point L577(lines 577 579) no Hoare annotation was computed. [2021-02-21 16:14:13,192 INFO L189 CegarLoopUtils]: For program point L577-1(lines 577 579) no Hoare annotation was computed. [2021-02-21 16:14:13,192 INFO L189 CegarLoopUtils]: For program point node_createENTRY(lines 575 584) no Hoare annotation was computed. [2021-02-21 16:14:13,192 INFO L189 CegarLoopUtils]: For program point node_createFINAL(lines 575 584) no Hoare annotation was computed. [2021-02-21 16:14:13,192 INFO L189 CegarLoopUtils]: For program point node_createEXIT(lines 575 584) no Hoare annotation was computed. [2021-02-21 16:14:13,192 INFO L189 CegarLoopUtils]: For program point L578(line 578) no Hoare annotation was computed. [2021-02-21 16:14:13,207 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-21 16:14:13,209 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-21 16:14:13,209 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-21 16:14:13,209 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-21 16:14:13,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-21 16:14:13,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-21 16:14:13,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-21 16:14:13,211 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-21 16:14:13,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 04:14:13 BoogieIcfgContainer [2021-02-21 16:14:13,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 16:14:13,215 INFO L168 Benchmark]: Toolchain (without parser) took 6959.70 ms. Allocated memory was 151.0 MB in the beginning and 195.0 MB in the end (delta: 44.0 MB). Free memory was 125.5 MB in the beginning and 68.0 MB in the end (delta: 57.5 MB). Peak memory consumption was 102.5 MB. Max. memory is 8.0 GB. [2021-02-21 16:14:13,215 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 16:14:13,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.34 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 133.9 MB in the end (delta: -9.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. [2021-02-21 16:14:13,216 INFO L168 Benchmark]: Boogie Preprocessor took 147.11 ms. Allocated memory is still 151.0 MB. Free memory was 133.9 MB in the beginning and 131.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-21 16:14:13,216 INFO L168 Benchmark]: RCFGBuilder took 955.41 ms. Allocated memory is still 151.0 MB. Free memory was 131.1 MB in the beginning and 84.5 MB in the end (delta: 46.6 MB). Peak memory consumption was 46.1 MB. Max. memory is 8.0 GB. [2021-02-21 16:14:13,216 INFO L168 Benchmark]: TraceAbstraction took 5065.93 ms. Allocated memory was 151.0 MB in the beginning and 195.0 MB in the end (delta: 44.0 MB). Free memory was 84.4 MB in the beginning and 68.0 MB in the end (delta: 16.4 MB). Peak memory consumption was 61.0 MB. Max. memory is 8.0 GB. [2021-02-21 16:14:13,218 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 762.34 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 133.9 MB in the end (delta: -9.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 147.11 ms. Allocated memory is still 151.0 MB. Free memory was 133.9 MB in the beginning and 131.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 955.41 ms. Allocated memory is still 151.0 MB. Free memory was 131.1 MB in the beginning and 84.5 MB in the end (delta: 46.6 MB). Peak memory consumption was 46.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5065.93 ms. Allocated memory was 151.0 MB in the beginning and 195.0 MB in the end (delta: 44.0 MB). Free memory was 84.4 MB in the beginning and 68.0 MB in the end (delta: 16.4 MB). Peak memory consumption was 61.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 641]: 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: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: len == 2 - InvariantResult [Line: 618]: Loop Invariant [2021-02-21 16:14:13,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-21 16:14:13,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-21 16:14:13,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-21 16:14:13,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-21 16:14:13,224 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-21 16:14:13,224 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-02-21 16:14:13,224 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-02-21 16:14:13,224 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: (#memory_$Pointer$ == \old(#memory_$Pointer$) && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: len == 2 && len <= i + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.5s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 170 SDtfs, 215 SDslu, 264 SDs, 0 SdLazy, 433 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred 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, 35 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 46 PreInvPairs, 60 NumberOfFragments, 126 HoareAnnotationTreeSize, 46 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 22 FomulaSimplificationsInter, 208 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 169 ConstructedInterpolants, 0 QuantifiedInterpolants, 12911 SizeOfPredicates, 2 NumberOfNonLiveVariables, 169 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 8/10 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...