/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/ldv-sets/test_add-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:28:40,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:28:40,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:28:40,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:28:40,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:28:40,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:28:40,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:28:40,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:28:40,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:28:40,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:28:40,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:28:40,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:28:40,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:28:40,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:28:40,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:28:40,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:28:40,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:28:40,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:28:40,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:28:40,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:28:40,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:28:40,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:28:40,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:28:40,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:28:40,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 18:28:40,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 18:28:40,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 18:28:40,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 18:28:40,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 18:28:40,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 18:28:40,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 18:28:40,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 18:28:40,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 18:28:40,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 18:28:40,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 18:28:40,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 18:28:40,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 18:28:40,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 18:28:40,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:28:40,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:28:40,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:28:40,372 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 [2020-10-23 18:28:40,423 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:28:40,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:28:40,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:28:40,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:28:40,427 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:28:40,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:28:40,428 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:28:40,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:28:40,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:28:40,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:28:40,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:28:40,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:28:40,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:28:40,432 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:28:40,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:28:40,433 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:28:40,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:28:40,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:28:40,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:28:40,434 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:28:40,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:28:40,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:28:40,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:28:40,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:28:40,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:28:40,435 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:28:40,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:28:40,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:28:40,436 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:28:40,436 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:28:40,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:28:40,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:28:40,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:28:40,855 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:28:40,856 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:28:40,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-2.i [2020-10-23 18:28:40,933 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d92b88bf/07de5a1228414d63882a687b568ef76b/FLAGf04a917bc [2020-10-23 18:28:41,626 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:28:41,627 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_add-2.i [2020-10-23 18:28:41,652 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d92b88bf/07de5a1228414d63882a687b568ef76b/FLAGf04a917bc [2020-10-23 18:28:41,865 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d92b88bf/07de5a1228414d63882a687b568ef76b [2020-10-23 18:28:41,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:28:41,885 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:28:41,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:28:41,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:28:41,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:28:41,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:28:41" (1/1) ... [2020-10-23 18:28:41,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b8736d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:41, skipping insertion in model container [2020-10-23 18:28:41,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:28:41" (1/1) ... [2020-10-23 18:28:41,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:28:41,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:28:42,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:28:42,390 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:28:42,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:28:42,577 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:28:42,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:42 WrapperNode [2020-10-23 18:28:42,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:28:42,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:28:42,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:28:42,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:28:42,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:42" (1/1) ... [2020-10-23 18:28:42,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:42" (1/1) ... [2020-10-23 18:28:42,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:42" (1/1) ... [2020-10-23 18:28:42,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:42" (1/1) ... [2020-10-23 18:28:42,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:42" (1/1) ... [2020-10-23 18:28:42,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:42" (1/1) ... [2020-10-23 18:28:42,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:42" (1/1) ... [2020-10-23 18:28:42,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:28:42,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:28:42,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:28:42,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:28:42,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:42" (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 [2020-10-23 18:28:42,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:28:42,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:28:42,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-23 18:28:42,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-23 18:28:42,753 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:28:42,754 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-23 18:28:42,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-23 18:28:42,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-10-23 18:28:42,754 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-23 18:28:42,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-23 18:28:42,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-23 18:28:42,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-23 18:28:42,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-23 18:28:42,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-23 18:28:42,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-10-23 18:28:42,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-10-23 18:28:42,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-23 18:28:42,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-10-23 18:28:42,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-10-23 18:28:42,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-10-23 18:28:42,759 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-23 18:28:42,759 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:28:42,759 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-23 18:28:42,759 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-23 18:28:42,760 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-23 18:28:42,760 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-23 18:28:42,760 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-23 18:28:42,760 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-23 18:28:42,760 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-23 18:28:42,760 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-23 18:28:42,760 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-23 18:28:42,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-23 18:28:42,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-23 18:28:42,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-23 18:28:42,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-23 18:28:42,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-23 18:28:42,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-23 18:28:42,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-23 18:28:42,762 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-23 18:28:42,762 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-23 18:28:42,762 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-23 18:28:42,762 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-23 18:28:42,762 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-23 18:28:42,762 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-23 18:28:42,762 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-23 18:28:42,763 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-23 18:28:42,763 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-23 18:28:42,763 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-23 18:28:42,763 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-23 18:28:42,763 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-23 18:28:42,763 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-23 18:28:42,764 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-23 18:28:42,764 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-23 18:28:42,764 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-23 18:28:42,764 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-23 18:28:42,765 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-23 18:28:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-23 18:28:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-23 18:28:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-23 18:28:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-23 18:28:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-23 18:28:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-23 18:28:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-23 18:28:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-23 18:28:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-23 18:28:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-23 18:28:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-23 18:28:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-23 18:28:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-23 18:28:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-23 18:28:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-23 18:28:42,769 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-23 18:28:42,769 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-23 18:28:42,769 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-23 18:28:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 18:28:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-23 18:28:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-23 18:28:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 18:28:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-23 18:28:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-23 18:28:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-23 18:28:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-23 18:28:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:28:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-23 18:28:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-23 18:28:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:28:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-23 18:28:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-23 18:28:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-23 18:28:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-23 18:28:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-23 18:28:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-23 18:28:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-23 18:28:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-23 18:28:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-23 18:28:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-23 18:28:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-23 18:28:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-23 18:28:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-23 18:28:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-23 18:28:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-23 18:28:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-23 18:28:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-23 18:28:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-23 18:28:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-23 18:28:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-23 18:28:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-23 18:28:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-23 18:28:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-23 18:28:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-23 18:28:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-23 18:28:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-23 18:28:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-23 18:28:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-23 18:28:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-23 18:28:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-23 18:28:42,777 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-23 18:28:42,777 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-23 18:28:42,778 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-23 18:28:42,778 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-23 18:28:42,779 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-23 18:28:42,779 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-23 18:28:42,779 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-23 18:28:42,779 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-23 18:28:42,779 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:28:42,779 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-23 18:28:42,779 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-23 18:28:42,779 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:28:42,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:28:42,780 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-23 18:28:42,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:28:42,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-23 18:28:42,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 18:28:42,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-10-23 18:28:42,781 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-23 18:28:42,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 18:28:42,781 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-23 18:28:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-23 18:28:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-23 18:28:42,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 18:28:42,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-23 18:28:42,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-23 18:28:42,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-10-23 18:28:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-10-23 18:28:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-23 18:28:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-10-23 18:28:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-10-23 18:28:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-10-23 18:28:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:28:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:28:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:28:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-23 18:28:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:28:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:28:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:28:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-23 18:28:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:28:43,419 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:28:43,419 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-23 18:28:43,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:28:43 BoogieIcfgContainer [2020-10-23 18:28:43,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:28:43,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:28:43,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:28:43,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:28:43,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:28:41" (1/3) ... [2020-10-23 18:28:43,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15551dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:28:43, skipping insertion in model container [2020-10-23 18:28:43,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:28:42" (2/3) ... [2020-10-23 18:28:43,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15551dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:28:43, skipping insertion in model container [2020-10-23 18:28:43,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:28:43" (3/3) ... [2020-10-23 18:28:43,434 INFO L111 eAbstractionObserver]: Analyzing ICFG test_add-2.i [2020-10-23 18:28:43,447 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:28:43,454 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:28:43,467 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:28:43,505 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:28:43,505 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:28:43,505 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:28:43,505 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:28:43,505 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:28:43,505 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:28:43,505 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:28:43,505 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:28:43,521 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-10-23 18:28:43,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-23 18:28:43,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:28:43,528 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] [2020-10-23 18:28:43,529 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:28:43,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:28:43,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1016243908, now seen corresponding path program 1 times [2020-10-23 18:28:43,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:28:43,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859041501] [2020-10-23 18:28:43,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:28:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:43,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:28:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:43,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-23 18:28:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:44,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:44,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:28:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:44,063 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-23 18:28:44,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859041501] [2020-10-23 18:28:44,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257995016] [2020-10-23 18:28:44,065 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 [2020-10-23 18:28:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:44,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-23 18:28:44,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:28:44,308 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:28:44,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:28:44,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2020-10-23 18:28:44,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887725977] [2020-10-23 18:28:44,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 18:28:44,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:28:44,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 18:28:44,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:28:44,332 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 4 states. [2020-10-23 18:28:44,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:28:44,378 INFO L93 Difference]: Finished difference Result 107 states and 127 transitions. [2020-10-23 18:28:44,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 18:28:44,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-10-23 18:28:44,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:28:44,390 INFO L225 Difference]: With dead ends: 107 [2020-10-23 18:28:44,390 INFO L226 Difference]: Without dead ends: 52 [2020-10-23 18:28:44,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:28:44,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-23 18:28:44,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-23 18:28:44,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-23 18:28:44,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2020-10-23 18:28:44,440 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 30 [2020-10-23 18:28:44,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:28:44,441 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2020-10-23 18:28:44,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 18:28:44,441 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2020-10-23 18:28:44,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-23 18:28:44,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:28:44,443 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-23 18:28:44,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-10-23 18:28:44,657 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:28:44,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:28:44,659 INFO L82 PathProgramCache]: Analyzing trace with hash -20648475, now seen corresponding path program 1 times [2020-10-23 18:28:44,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:28:44,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509689991] [2020-10-23 18:28:44,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:28:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:44,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:28:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:44,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-23 18:28:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:44,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:44,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:28:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:44,960 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:28:44,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509689991] [2020-10-23 18:28:44,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224284536] [2020-10-23 18:28:44,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:28:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:45,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 47 conjunts are in the unsatisfiable core [2020-10-23 18:28:45,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:28:45,225 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2020-10-23 18:28:45,227 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:28:45,238 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:28:45,242 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2020-10-23 18:28:45,243 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-23 18:28:45,251 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:28:45,251 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-23 18:28:45,251 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:10 [2020-10-23 18:28:45,435 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:28:45,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:28:45,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2020-10-23 18:28:45,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902031724] [2020-10-23 18:28:45,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 18:28:45,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:28:45,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 18:28:45,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-23 18:28:45,439 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 9 states. [2020-10-23 18:28:46,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:28:46,072 INFO L93 Difference]: Finished difference Result 99 states and 109 transitions. [2020-10-23 18:28:46,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 18:28:46,072 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-10-23 18:28:46,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:28:46,074 INFO L225 Difference]: With dead ends: 99 [2020-10-23 18:28:46,074 INFO L226 Difference]: Without dead ends: 81 [2020-10-23 18:28:46,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2020-10-23 18:28:46,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-23 18:28:46,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 55. [2020-10-23 18:28:46,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-23 18:28:46,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2020-10-23 18:28:46,088 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 30 [2020-10-23 18:28:46,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:28:46,089 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2020-10-23 18:28:46,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 18:28:46,089 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2020-10-23 18:28:46,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-23 18:28:46,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:28:46,091 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:28:46,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:28:46,306 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:28:46,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:28:46,307 INFO L82 PathProgramCache]: Analyzing trace with hash 240529569, now seen corresponding path program 1 times [2020-10-23 18:28:46,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:28:46,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523892373] [2020-10-23 18:28:46,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:28:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:46,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:28:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:46,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-23 18:28:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:46,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:46,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:46,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 18:28:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:46,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:46,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:28:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:46,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:46,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-23 18:28:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:46,882 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:28:46,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523892373] [2020-10-23 18:28:46,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:28:46,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-23 18:28:46,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035143966] [2020-10-23 18:28:46,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-23 18:28:46,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:28:46,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-23 18:28:46,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2020-10-23 18:28:46,885 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 19 states. [2020-10-23 18:28:48,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:28:48,581 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2020-10-23 18:28:48,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 18:28:48,582 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 50 [2020-10-23 18:28:48,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:28:48,585 INFO L225 Difference]: With dead ends: 77 [2020-10-23 18:28:48,585 INFO L226 Difference]: Without dead ends: 68 [2020-10-23 18:28:48,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=195, Invalid=1137, Unknown=0, NotChecked=0, Total=1332 [2020-10-23 18:28:48,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-23 18:28:48,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 56. [2020-10-23 18:28:48,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-23 18:28:48,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2020-10-23 18:28:48,601 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 50 [2020-10-23 18:28:48,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:28:48,602 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2020-10-23 18:28:48,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-23 18:28:48,602 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2020-10-23 18:28:48,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-23 18:28:48,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:28:48,604 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:28:48,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 18:28:48,604 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:28:48,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:28:48,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1605817482, now seen corresponding path program 1 times [2020-10-23 18:28:48,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:28:48,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143533222] [2020-10-23 18:28:48,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:28:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:28:48,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-23 18:28:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 18:28:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:28:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-23 18:28:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:48,797 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-23 18:28:48,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143533222] [2020-10-23 18:28:48,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:28:48,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 18:28:48,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155780544] [2020-10-23 18:28:48,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:28:48,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:28:48,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:28:48,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:28:48,800 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 8 states. [2020-10-23 18:28:49,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:28:49,093 INFO L93 Difference]: Finished difference Result 66 states and 68 transitions. [2020-10-23 18:28:49,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 18:28:49,094 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2020-10-23 18:28:49,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:28:49,095 INFO L225 Difference]: With dead ends: 66 [2020-10-23 18:28:49,095 INFO L226 Difference]: Without dead ends: 58 [2020-10-23 18:28:49,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:28:49,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-23 18:28:49,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-10-23 18:28:49,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-23 18:28:49,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2020-10-23 18:28:49,119 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 50 [2020-10-23 18:28:49,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:28:49,120 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2020-10-23 18:28:49,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:28:49,123 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2020-10-23 18:28:49,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-23 18:28:49,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:28:49,128 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:28:49,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 18:28:49,128 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:28:49,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:28:49,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1099712189, now seen corresponding path program 1 times [2020-10-23 18:28:49,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:28:49,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782715584] [2020-10-23 18:28:49,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:28:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:28:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-23 18:28:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 18:28:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:49,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:28:49,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:50,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:28:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:50,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-23 18:28:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:50,459 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:28:50,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782715584] [2020-10-23 18:28:50,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58407065] [2020-10-23 18:28:50,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:28:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:28:50,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 87 conjunts are in the unsatisfiable core [2020-10-23 18:28:50,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:28:50,959 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-23 18:28:50,959 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:28:50,969 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:28:50,970 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-23 18:28:50,970 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:20 [2020-10-23 18:28:51,209 INFO L441 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_41|, |v_#memory_$Pointer$.offset_41|], 2=[|v_#memory_int_40|, |v_#memory_int_41|, |v_#memory_int_42|]} [2020-10-23 18:28:51,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:28:51,434 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 31 [2020-10-23 18:28:51,436 INFO L350 Elim1Store]: treesize reduction 139, result has 30.8 percent of original size [2020-10-23 18:28:51,436 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 69 [2020-10-23 18:28:51,437 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:28:51,684 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-10-23 18:28:51,686 INFO L625 ElimStorePlain]: treesize reduction 16, result has 92.6 percent of original size [2020-10-23 18:28:51,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:28:51,866 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 39 [2020-10-23 18:28:51,867 INFO L350 Elim1Store]: treesize reduction 100, result has 50.2 percent of original size [2020-10-23 18:28:51,868 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 108 [2020-10-23 18:28:51,869 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-23 18:28:52,156 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2020-10-23 18:28:52,159 INFO L625 ElimStorePlain]: treesize reduction 36, result has 84.4 percent of original size [2020-10-23 18:28:52,175 INFO L545 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-23 18:28:52,309 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-23 18:28:52,309 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:28:52,326 INFO L545 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-23 18:28:52,446 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-23 18:28:52,447 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:28:52,454 INFO L545 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-23 18:28:52,557 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-23 18:28:52,558 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:28:52,563 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:28:52,565 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:28:52,569 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:28:52,582 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:28:52,586 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:28:52,590 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:28:52,597 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:28:52,599 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:28:52,602 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:28:52,613 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:28:52,615 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:28:52,624 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-10-23 18:28:52,626 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:28:52,629 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:28:52,635 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 5 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2020-10-23 18:28:52,635 INFO L244 ElimStorePlain]: Needed 6 recursive calls to eliminate 7 variables, input treesize:226, output treesize:208 [2020-10-23 18:28:52,637 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:28:52,639 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:28:52,641 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:28:52,644 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:28:52,646 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:28:52,648 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:28:52,652 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:28:52,653 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:28:52,655 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:28:52,659 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:28:52,661 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:28:52,665 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-10-23 18:28:52,667 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:28:52,669 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:28:52,896 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:28:52,899 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:28:52,901 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:28:52,920 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:28:52,923 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:28:52,925 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:28:52,931 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:28:52,934 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:28:52,939 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:28:52,951 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:28:52,952 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:28:52,972 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:28:52,974 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:28:52,980 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:31:27,478 WARN L193 SmtUtils]: Spent 2.53 m on a formula simplification. DAG size of input: 134 DAG size of output: 108 [2020-10-23 18:31:59,647 WARN L193 SmtUtils]: Spent 30.92 s on a formula simplification that was a NOOP. DAG size: 145 [2020-10-23 18:31:59,714 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 6, 8, 1] term [2020-10-23 18:31:59,715 INFO L603 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-10-23 18:31:59,756 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 6, 8, 1] term [2020-10-23 18:31:59,757 INFO L603 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-10-23 18:31:59,822 INFO L441 ElimStorePlain]: Different costs {6=[v_prenex_17, v_prenex_16, |v_#memory_int_BEFORE_CALL_4|], 8=[v_prenex_18, v_prenex_20, v_prenex_19]} [2020-10-23 18:32:00,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:32:00,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:32:00,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:32:00,106 INFO L244 Elim1Store]: Index analysis took 191 ms [2020-10-23 18:32:00,465 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-10-23 18:32:00,466 INFO L350 Elim1Store]: treesize reduction 103, result has 58.6 percent of original size [2020-10-23 18:32:00,467 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 158 [2020-10-23 18:32:00,468 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:32:09,519 WARN L193 SmtUtils]: Spent 9.05 s on a formula simplification. DAG size of input: 181 DAG size of output: 176 [2020-10-23 18:32:09,521 INFO L625 ElimStorePlain]: treesize reduction 69, result has 95.4 percent of original size [2020-10-23 18:32:09,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:32:09,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:32:09,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:32:09,824 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 33 [2020-10-23 18:32:09,825 INFO L350 Elim1Store]: treesize reduction 95, result has 43.8 percent of original size [2020-10-23 18:32:09,826 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 86 [2020-10-23 18:32:09,827 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-23 18:32:16,319 WARN L193 SmtUtils]: Spent 6.49 s on a formula simplification. DAG size of input: 181 DAG size of output: 177 [2020-10-23 18:32:16,320 INFO L625 ElimStorePlain]: treesize reduction 22, result has 98.5 percent of original size [2020-10-23 18:32:16,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:32:16,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:32:16,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:32:16,436 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 28 [2020-10-23 18:32:16,437 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-23 18:32:18,276 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification that was a NOOP. DAG size: 166 [2020-10-23 18:32:18,277 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:32:18,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:32:18,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:32:18,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:32:18,459 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-23 18:32:18,460 INFO L350 Elim1Store]: treesize reduction 132, result has 47.2 percent of original size [2020-10-23 18:32:18,460 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 243 treesize of output 121 [2020-10-23 18:32:18,461 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-23 18:32:20,824 WARN L193 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 18:32:20,825 INFO L625 ElimStorePlain]: treesize reduction 26, result has 97.9 percent of original size [2020-10-23 18:32:20,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:32:20,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:32:20,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:32:20,994 INFO L350 Elim1Store]: treesize reduction 116, result has 46.8 percent of original size [2020-10-23 18:32:20,994 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 235 treesize of output 105 [2020-10-23 18:32:20,996 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-10-23 18:32:22,610 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 18:32:22,611 INFO L625 ElimStorePlain]: treesize reduction 34, result has 96.9 percent of original size [2020-10-23 18:32:22,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:32:22,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:32:22,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:32:22,888 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2020-10-23 18:32:22,889 INFO L350 Elim1Store]: treesize reduction 530, result has 35.8 percent of original size [2020-10-23 18:32:22,890 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 275 treesize of output 299 [2020-10-23 18:32:22,891 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-10-23 18:32:23,734 WARN L193 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 148 [2020-10-23 18:32:23,735 INFO L625 ElimStorePlain]: treesize reduction 59, result has 94.5 percent of original size [2020-10-23 18:32:23,754 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:32:23,756 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:32:23,759 INFO L545 ElimStorePlain]: Start of recursive call 1: 18 dim-0 vars, 6 dim-2 vars, End of recursive call: 2 dim-0 vars, and 6 xjuncts. [2020-10-23 18:32:23,760 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 24 variables, input treesize:1417, output treesize:668 [2020-10-23 18:32:23,761 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:32:24,347 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-23 18:32:24,352 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:32:24,661 INFO L603 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-10-23 18:32:24,673 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:32:25,055 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2020-10-23 18:32:26,619 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:32:26,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:32:26,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 21] total 44 [2020-10-23 18:32:26,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489618820] [2020-10-23 18:32:26,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-10-23 18:32:26,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:26,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-10-23 18:32:26,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1773, Unknown=1, NotChecked=0, Total=1892 [2020-10-23 18:32:26,623 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand 44 states. [2020-10-23 18:32:27,865 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2020-10-23 18:32:28,203 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-10-23 18:32:28,493 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-23 18:32:28,896 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-23 18:32:29,411 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-10-23 18:32:32,271 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 116 [2020-10-23 18:33:42,149 WARN L193 SmtUtils]: Spent 1.14 m on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-10-23 18:33:46,805 WARN L193 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 130 [2020-10-23 18:33:49,157 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 119 [2020-10-23 18:33:49,562 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-10-23 18:33:49,802 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-23 18:33:50,080 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-23 18:33:50,632 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 95 [2020-10-23 18:33:51,157 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 103 [2020-10-23 18:33:51,755 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 99 [2020-10-23 18:33:52,207 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 98 [2020-10-23 18:33:52,698 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 105 [2020-10-23 18:33:53,269 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:33:53,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:33:53,582 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2020-10-23 18:33:53,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-23 18:33:53,583 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 53 [2020-10-23 18:33:53,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:33:53,587 INFO L225 Difference]: With dead ends: 86 [2020-10-23 18:33:53,588 INFO L226 Difference]: Without dead ends: 66 [2020-10-23 18:33:53,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 777 ImplicationChecksByTransitivity, 268.5s TimeCoverageRelationStatistics Valid=543, Invalid=5006, Unknown=1, NotChecked=0, Total=5550 [2020-10-23 18:33:53,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-23 18:33:53,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2020-10-23 18:33:53,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-23 18:33:53,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2020-10-23 18:33:53,611 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 53 [2020-10-23 18:33:53,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:33:53,612 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2020-10-23 18:33:53,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-10-23 18:33:53,612 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2020-10-23 18:33:53,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-23 18:33:53,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:33:53,617 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:33:53,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:53,818 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:33:53,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:33:53,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1519530358, now seen corresponding path program 1 times [2020-10-23 18:33:53,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:33:53,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854844822] [2020-10-23 18:33:53,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:33:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:53,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:33:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:53,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-23 18:33:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:53,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:33:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:53,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 18:33:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:53,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:33:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:53,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:33:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:54,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:33:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:54,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-23 18:33:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:54,027 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-23 18:33:54,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854844822] [2020-10-23 18:33:54,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924508035] [2020-10-23 18:33:54,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:54,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-23 18:33:54,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:33:54,250 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:33:54,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:33:54,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 8 [2020-10-23 18:33:54,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660882181] [2020-10-23 18:33:54,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 18:33:54,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:33:54,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 18:33:54,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:33:54,253 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand 4 states. [2020-10-23 18:33:54,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:33:54,272 INFO L93 Difference]: Finished difference Result 104 states and 106 transitions. [2020-10-23 18:33:54,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 18:33:54,273 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-10-23 18:33:54,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:33:54,276 INFO L225 Difference]: With dead ends: 104 [2020-10-23 18:33:54,276 INFO L226 Difference]: Without dead ends: 60 [2020-10-23 18:33:54,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:33:54,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-23 18:33:54,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-23 18:33:54,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-23 18:33:54,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-10-23 18:33:54,305 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 56 [2020-10-23 18:33:54,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:33:54,305 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-10-23 18:33:54,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 18:33:54,305 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-10-23 18:33:54,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-23 18:33:54,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:33:54,312 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:33:54,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:54,527 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:33:54,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:33:54,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1220105153, now seen corresponding path program 2 times [2020-10-23 18:33:54,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:33:54,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949296887] [2020-10-23 18:33:54,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:33:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:54,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:33:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:54,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-23 18:33:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:55,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:33:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:55,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:33:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:55,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:33:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:55,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-23 18:33:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:55,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:33:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:55,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-23 18:33:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:55,621 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-23 18:33:55,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949296887] [2020-10-23 18:33:55,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738888632] [2020-10-23 18:33:55,622 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:33:55,892 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-23 18:33:55,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-23 18:33:55,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 131 conjunts are in the unsatisfiable core [2020-10-23 18:33:55,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:33:55,990 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2020-10-23 18:33:55,991 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:33:56,004 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:33:56,009 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2020-10-23 18:33:56,010 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-23 18:33:56,022 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:33:56,023 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-23 18:33:56,023 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:13 [2020-10-23 18:34:26,626 WARN L193 SmtUtils]: Spent 20.04 s on a formula simplification that was a NOOP. DAG size: 25 [2020-10-23 18:34:50,781 WARN L193 SmtUtils]: Spent 24.07 s on a formula simplification that was a NOOP. DAG size: 27 [2020-10-23 18:34:50,917 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:35:15,081 WARN L193 SmtUtils]: Spent 24.06 s on a formula simplification that was a NOOP. DAG size: 27 [2020-10-23 18:35:15,087 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:35:47,821 WARN L193 SmtUtils]: Spent 32.59 s on a formula simplification. DAG size of input: 50 DAG size of output: 34 [2020-10-23 18:35:47,829 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 9, 1] term [2020-10-23 18:35:47,829 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:35:47,831 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:35:47,832 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:35:47,833 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:35:47,848 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-23 18:35:47,849 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:35:47,932 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:35:47,943 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-23 18:35:47,944 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-23 18:35:48,036 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:35:48,037 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-23 18:35:48,037 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:131, output treesize:123 [2020-10-23 18:35:50,274 INFO L441 ElimStorePlain]: Different costs {0=[v_prenex_29, v_prenex_28, |v_#memory_$Pointer$.base_BEFORE_CALL_8|, v_prenex_34, |v_#memory_$Pointer$.offset_BEFORE_CALL_8|, |v_old(#memory_$Pointer$.base)_BEFORE_CALL_4|], 2=[v_prenex_32, |v_old(#memory_$Pointer$.offset)_BEFORE_CALL_4|]} [2020-10-23 18:35:50,279 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:35:50,367 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:35:50,373 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-23 18:35:50,444 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:35:50,449 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-23 18:35:50,526 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:35:50,527 INFO L513 ElimStorePlain]: Eliminatee v_prenex_34 vanished before elimination [2020-10-23 18:35:50,532 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-23 18:35:50,589 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:35:50,590 INFO L513 ElimStorePlain]: Eliminatee |v_old(#memory_$Pointer$.base)_BEFORE_CALL_4| vanished before elimination [2020-10-23 18:35:50,598 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2020-10-23 18:35:50,600 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-10-23 18:35:50,653 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:35:50,660 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2020-10-23 18:35:50,666 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-10-23 18:35:50,713 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:35:50,715 INFO L545 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 8 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-23 18:35:50,715 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 16 variables, input treesize:115, output treesize:16 [2020-10-23 18:35:54,935 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-23 18:35:55,052 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-23 18:35:55,052 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:35:55,060 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-23 18:35:55,160 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:35:55,168 INFO L545 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-23 18:35:55,259 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:35:55,260 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2020-10-23 18:35:55,260 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:229, output treesize:242 [2020-10-23 18:36:39,500 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 62 [2020-10-23 18:36:39,511 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:36:39,513 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:36:39,514 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:36:39,545 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-23 18:36:39,562 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-23 18:36:40,655 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 102 [2020-10-23 18:36:40,656 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:36:40,686 INFO L545 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-23 18:36:40,720 INFO L545 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-23 18:36:42,587 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification that was a NOOP. DAG size: 113 [2020-10-23 18:36:42,588 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:36:42,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:36:42,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:36:43,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:36:43,400 INFO L244 Elim1Store]: Index analysis took 638 ms [2020-10-23 18:36:44,583 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 48 [2020-10-23 18:36:44,584 INFO L350 Elim1Store]: treesize reduction 190, result has 35.4 percent of original size [2020-10-23 18:36:44,585 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 93 treesize of output 107 [2020-10-23 18:36:44,586 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-10-23 18:36:44,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:36:44,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:36:45,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:36:45,588 INFO L244 Elim1Store]: Index analysis took 900 ms [2020-10-23 18:36:47,395 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 48 [2020-10-23 18:36:47,396 INFO L350 Elim1Store]: treesize reduction 190, result has 35.4 percent of original size [2020-10-23 18:36:47,397 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 93 treesize of output 107 [2020-10-23 18:36:47,398 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-10-23 18:36:49,408 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 127 [2020-10-23 18:36:49,409 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:36:49,418 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:36:49,420 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:36:49,429 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:36:49,433 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:36:49,438 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:36:49,442 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:36:49,447 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:36:49,451 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:36:49,463 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:36:49,465 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:36:49,474 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:36:49,478 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:36:49,483 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:36:49,487 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:36:49,492 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:36:49,496 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:36:49,501 INFO L545 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 3 dim-2 vars, End of recursive call: 12 dim-0 vars, and 2 xjuncts. [2020-10-23 18:36:49,501 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 10 variables, input treesize:625, output treesize:685 [2020-10-23 18:36:49,503 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:36:49,506 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:37:03,690 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-23 18:37:03,696 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:37:03,702 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-23 18:37:05,760 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (< |c_ldv_set_add_#in~s.base| |c_#StackHeapBarrier|)) (.cse0 (not (= (select (select |c_old(#memory_$Pointer$.offset)| |c_ldv_set_add_#in~s.base|) |c_ldv_set_add_#in~s.offset|) |c_ldv_set_add_#in~s.offset|))) (.cse20 (not (= |c_ldv_set_add_#in~s.base| (select (select |c_old(#memory_$Pointer$.base)| |c_ldv_set_add_#in~s.base|) |c_ldv_set_add_#in~s.offset|)))) (.cse9 (= |c_~#s1~0.offset| 0)) (.cse10 (< |c_#StackHeapBarrier| |c_~#s1~0.base|))) (or (and .cse0 .cse1 (exists ((v_prenex_38 Int) (v_DerPreprocessor_14 Int) (v_DerPreprocessor_12 Int) (v_prenex_36 Int)) (let ((.cse4 (+ |c_ldv_set_add_#in~s.offset| 8)) (.cse6 (+ v_prenex_36 4)) (.cse3 (+ |c_ldv_set_add_#in~s.offset| 4))) (and (= |c_#memory_$Pointer$.base| (let ((.cse2 (let ((.cse5 (store |c_old(#memory_$Pointer$.base)| |c_ldv_set_add_#in~s.base| (store (select |c_old(#memory_$Pointer$.base)| |c_ldv_set_add_#in~s.base|) |c_ldv_set_add_#in~s.offset| v_DerPreprocessor_12)))) (store .cse5 v_prenex_38 (store (select .cse5 v_prenex_38) .cse6 |c_ldv_set_add_#in~s.base|))))) (store .cse2 |c_ldv_set_add_#in~s.base| (store (store (store (select .cse2 |c_ldv_set_add_#in~s.base|) .cse3 v_prenex_38) .cse4 |c_ldv_set_add_#in~s.base|) |c_ldv_set_add_#in~s.offset| |c_ldv_set_add_#in~s.base|)))) (= |c_#memory_$Pointer$.offset| (let ((.cse7 (let ((.cse8 (store |c_old(#memory_$Pointer$.offset)| |c_ldv_set_add_#in~s.base| (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_set_add_#in~s.base|) |c_ldv_set_add_#in~s.offset| v_DerPreprocessor_14)))) (store .cse8 v_prenex_38 (store (select .cse8 v_prenex_38) .cse6 .cse3))))) (store .cse7 |c_ldv_set_add_#in~s.base| (store (store (store (select .cse7 |c_ldv_set_add_#in~s.base|) .cse3 v_prenex_36) .cse4 |c_ldv_set_add_#in~s.offset|) |c_ldv_set_add_#in~s.offset| .cse3))))))) .cse9 .cse10) (and (exists ((v_DerPreprocessor_13 Int) (v_DerPreprocessor_11 Int) (__ldv_list_add_~next.base Int) (ldv_set_add_~le~0.offset Int) (__ldv_list_add_~next.offset Int) (ldv_set_add_~le~0.base Int)) (let ((.cse14 (+ ldv_set_add_~le~0.offset 8)) (.cse16 (+ __ldv_list_add_~next.offset 4)) (.cse13 (+ ldv_set_add_~le~0.offset 4))) (and (= (let ((.cse11 (let ((.cse12 (let ((.cse15 (store |c_old(#memory_$Pointer$.base)| ldv_set_add_~le~0.base (store (select |c_old(#memory_$Pointer$.base)| ldv_set_add_~le~0.base) ldv_set_add_~le~0.offset v_DerPreprocessor_11)))) (store .cse15 __ldv_list_add_~next.base (store (select .cse15 __ldv_list_add_~next.base) .cse16 ldv_set_add_~le~0.base))))) (store .cse12 ldv_set_add_~le~0.base (store (store (select .cse12 ldv_set_add_~le~0.base) .cse13 __ldv_list_add_~next.base) .cse14 |c_ldv_set_add_#in~s.base|))))) (store .cse11 |c_ldv_set_add_#in~s.base| (store (select .cse11 |c_ldv_set_add_#in~s.base|) |c_ldv_set_add_#in~s.offset| ldv_set_add_~le~0.base))) |c_#memory_$Pointer$.base|) (< ldv_set_add_~le~0.base |c_#StackHeapBarrier|) (= |c_#memory_$Pointer$.offset| (let ((.cse17 (let ((.cse18 (let ((.cse19 (store |c_old(#memory_$Pointer$.offset)| ldv_set_add_~le~0.base (store (select |c_old(#memory_$Pointer$.offset)| ldv_set_add_~le~0.base) ldv_set_add_~le~0.offset v_DerPreprocessor_13)))) (store .cse19 __ldv_list_add_~next.base (store (select .cse19 __ldv_list_add_~next.base) .cse16 .cse13))))) (store .cse18 ldv_set_add_~le~0.base (store (store (select .cse18 ldv_set_add_~le~0.base) .cse13 __ldv_list_add_~next.offset) .cse14 |c_ldv_set_add_#in~s.offset|))))) (store .cse17 |c_ldv_set_add_#in~s.base| (store (select .cse17 |c_ldv_set_add_#in~s.base|) |c_ldv_set_add_#in~s.offset| .cse13)))) (= (select (select |c_#memory_int| ldv_set_add_~le~0.base) ldv_set_add_~le~0.offset) |c_ldv_set_add_#in~new|)))) .cse20 .cse9 .cse10) (and .cse0 (exists ((v_prenex_37 Int) (v_prenex_35 Int)) (let ((.cse22 (+ v_prenex_35 4)) (.cse23 (+ v_prenex_35 8))) (and (< v_prenex_37 |c_#StackHeapBarrier|) (= |c_#memory_$Pointer$.base| (let ((.cse21 (store |c_old(#memory_$Pointer$.base)| v_prenex_37 (store (store (store (select |c_old(#memory_$Pointer$.base)| v_prenex_37) v_prenex_35 v_prenex_37) .cse22 v_prenex_37) .cse23 |c_ldv_set_add_#in~s.base|)))) (store .cse21 |c_ldv_set_add_#in~s.base| (store (select .cse21 |c_ldv_set_add_#in~s.base|) |c_ldv_set_add_#in~s.offset| v_prenex_37)))) (= |c_#memory_$Pointer$.offset| (let ((.cse24 (store |c_old(#memory_$Pointer$.offset)| v_prenex_37 (store (store (store (select |c_old(#memory_$Pointer$.offset)| v_prenex_37) v_prenex_35 .cse22) .cse22 (+ v_prenex_35 (- 4))) .cse23 |c_ldv_set_add_#in~s.offset|)))) (store .cse24 |c_ldv_set_add_#in~s.base| (store (select .cse24 |c_ldv_set_add_#in~s.base|) |c_ldv_set_add_#in~s.offset| .cse22))))))) .cse9 .cse10) (and .cse1 .cse20 .cse9 (exists ((v_DerPreprocessor_13 Int) (v_DerPreprocessor_11 Int) (__ldv_list_add_~next.base Int) (__ldv_list_add_~next.offset Int)) (let ((.cse27 (+ |c_ldv_set_add_#in~s.offset| 8)) (.cse29 (+ __ldv_list_add_~next.offset 4)) (.cse26 (+ |c_ldv_set_add_#in~s.offset| 4))) (and (= (let ((.cse25 (let ((.cse28 (store |c_old(#memory_$Pointer$.base)| |c_ldv_set_add_#in~s.base| (store (select |c_old(#memory_$Pointer$.base)| |c_ldv_set_add_#in~s.base|) |c_ldv_set_add_#in~s.offset| v_DerPreprocessor_11)))) (store .cse28 __ldv_list_add_~next.base (store (select .cse28 __ldv_list_add_~next.base) .cse29 |c_ldv_set_add_#in~s.base|))))) (store .cse25 |c_ldv_set_add_#in~s.base| (store (store (store (select .cse25 |c_ldv_set_add_#in~s.base|) .cse26 __ldv_list_add_~next.base) .cse27 |c_ldv_set_add_#in~s.base|) |c_ldv_set_add_#in~s.offset| |c_ldv_set_add_#in~s.base|))) |c_#memory_$Pointer$.base|) (= |c_#memory_$Pointer$.offset| (let ((.cse30 (let ((.cse31 (store |c_old(#memory_$Pointer$.offset)| |c_ldv_set_add_#in~s.base| (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_set_add_#in~s.base|) |c_ldv_set_add_#in~s.offset| v_DerPreprocessor_13)))) (store .cse31 __ldv_list_add_~next.base (store (select .cse31 __ldv_list_add_~next.base) .cse29 .cse26))))) (store .cse30 |c_ldv_set_add_#in~s.base| (store (store (store (select .cse30 |c_ldv_set_add_#in~s.base|) .cse26 __ldv_list_add_~next.offset) .cse27 |c_ldv_set_add_#in~s.offset|) |c_ldv_set_add_#in~s.offset| .cse26))))))) .cse10) (and .cse0 .cse9 (exists ((v_prenex_38 Int) (v_prenex_37 Int) (v_DerPreprocessor_14 Int) (v_DerPreprocessor_12 Int) (v_prenex_36 Int) (v_prenex_35 Int)) (let ((.cse35 (+ v_prenex_35 8)) (.cse37 (+ v_prenex_36 4)) (.cse34 (+ v_prenex_35 4))) (and (= |c_#memory_$Pointer$.base| (let ((.cse32 (let ((.cse33 (let ((.cse36 (store |c_old(#memory_$Pointer$.base)| v_prenex_37 (store (select |c_old(#memory_$Pointer$.base)| v_prenex_37) v_prenex_35 v_DerPreprocessor_12)))) (store .cse36 v_prenex_38 (store (select .cse36 v_prenex_38) .cse37 v_prenex_37))))) (store .cse33 v_prenex_37 (store (store (select .cse33 v_prenex_37) .cse34 v_prenex_38) .cse35 |c_ldv_set_add_#in~s.base|))))) (store .cse32 |c_ldv_set_add_#in~s.base| (store (select .cse32 |c_ldv_set_add_#in~s.base|) |c_ldv_set_add_#in~s.offset| v_prenex_37)))) (< v_prenex_37 |c_#StackHeapBarrier|) (= (select (select |c_#memory_int| v_prenex_37) v_prenex_35) |c_ldv_set_add_#in~new|) (= |c_#memory_$Pointer$.offset| (let ((.cse38 (let ((.cse39 (let ((.cse40 (store |c_old(#memory_$Pointer$.offset)| v_prenex_37 (store (select |c_old(#memory_$Pointer$.offset)| v_prenex_37) v_prenex_35 v_DerPreprocessor_14)))) (store .cse40 v_prenex_38 (store (select .cse40 v_prenex_38) .cse37 .cse34))))) (store .cse39 v_prenex_37 (store (store (select .cse39 v_prenex_37) .cse34 v_prenex_36) .cse35 |c_ldv_set_add_#in~s.offset|))))) (store .cse38 |c_ldv_set_add_#in~s.base| (store (select .cse38 |c_ldv_set_add_#in~s.base|) |c_ldv_set_add_#in~s.offset| .cse34))))))) .cse10) (and (exists ((__ldv_list_add_~next.base Int) (__ldv_list_add_~next.offset Int)) (let ((.cse43 (+ __ldv_list_add_~next.offset 4)) (.cse42 (+ __ldv_list_add_~next.offset 8)) (.cse44 (+ __ldv_list_add_~next.offset 12))) (and (< __ldv_list_add_~next.base |c_#StackHeapBarrier|) (= |c_#memory_$Pointer$.offset| (let ((.cse41 (store |c_old(#memory_$Pointer$.offset)| __ldv_list_add_~next.base (store (store (store (select |c_old(#memory_$Pointer$.offset)| __ldv_list_add_~next.base) .cse43 .cse42) .cse42 __ldv_list_add_~next.offset) .cse44 |c_ldv_set_add_#in~s.offset|)))) (store .cse41 |c_ldv_set_add_#in~s.base| (store (select .cse41 |c_ldv_set_add_#in~s.base|) |c_ldv_set_add_#in~s.offset| .cse42)))) (= (let ((.cse45 (store |c_old(#memory_$Pointer$.base)| __ldv_list_add_~next.base (store (store (store (select |c_old(#memory_$Pointer$.base)| __ldv_list_add_~next.base) .cse43 __ldv_list_add_~next.base) .cse42 __ldv_list_add_~next.base) .cse44 |c_ldv_set_add_#in~s.base|)))) (store .cse45 |c_ldv_set_add_#in~s.base| (store (select .cse45 |c_ldv_set_add_#in~s.base|) |c_ldv_set_add_#in~s.offset| __ldv_list_add_~next.base))) |c_#memory_$Pointer$.base|)))) .cse20 .cse9 .cse10))) is different from false [2020-10-23 18:37:05,774 INFO L603 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-10-23 18:37:05,806 INFO L603 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-10-23 18:37:05,885 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:37:05,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:37:05,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2020-10-23 18:37:05,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307217946] [2020-10-23 18:37:05,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-23 18:37:05,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:05,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-23 18:37:05,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1191, Unknown=33, NotChecked=70, Total=1406 [2020-10-23 18:37:05,889 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 38 states. [2020-10-23 18:37:39,360 WARN L193 SmtUtils]: Spent 25.23 s on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-10-23 18:38:15,149 WARN L193 SmtUtils]: Spent 28.11 s on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2020-10-23 18:38:57,110 WARN L193 SmtUtils]: Spent 33.80 s on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-23 18:39:51,262 WARN L193 SmtUtils]: Spent 31.89 s on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-23 18:40:45,715 WARN L193 SmtUtils]: Spent 40.24 s on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-10-23 18:40:54,045 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-10-23 18:41:06,462 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-10-23 18:41:18,877 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2020-10-23 18:41:39,254 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2020-10-23 18:41:51,570 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71