java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-sets/test_add-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:53:47,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:53:47,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:53:47,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:53:47,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:53:47,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:53:47,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:53:47,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:53:47,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:53:47,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:53:47,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:53:47,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:53:47,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:53:47,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:53:47,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:53:47,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:53:47,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:53:47,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:53:47,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:53:47,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:53:47,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:53:47,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:53:47,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:53:47,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:53:47,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:53:47,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:53:47,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:53:47,569 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:53:47,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:53:47,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:53:47,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:53:47,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:53:47,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:53:47,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:53:47,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:53:47,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:53:47,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:53:47,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:53:47,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:53:47,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:53:47,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:53:47,577 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 [2019-10-13 22:53:47,590 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:53:47,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:53:47,592 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:53:47,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:53:47,592 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:53:47,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:53:47,593 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:53:47,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:53:47,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:53:47,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:53:47,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:53:47,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:53:47,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:53:47,594 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:53:47,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:53:47,594 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:53:47,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:53:47,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:53:47,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:53:47,595 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:53:47,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:53:47,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:53:47,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:53:47,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:53:47,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:53:47,596 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:53:47,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:53:47,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:53:47,597 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 22:53:47,867 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:53:47,879 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:53:47,882 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:53:47,884 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:53:47,884 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:53:47,885 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-2.i [2019-10-13 22:53:47,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a5d6c94d/846459574c9c4c5cb3089f5f3d660278/FLAG3446cdb6e [2019-10-13 22:53:48,498 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:53:48,499 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_add-2.i [2019-10-13 22:53:48,521 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a5d6c94d/846459574c9c4c5cb3089f5f3d660278/FLAG3446cdb6e [2019-10-13 22:53:48,759 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a5d6c94d/846459574c9c4c5cb3089f5f3d660278 [2019-10-13 22:53:48,770 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:53:48,771 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:53:48,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:53:48,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:53:48,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:53:48,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:53:48" (1/1) ... [2019-10-13 22:53:48,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e3b091d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:48, skipping insertion in model container [2019-10-13 22:53:48,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:53:48" (1/1) ... [2019-10-13 22:53:48,790 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:53:48,847 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:53:49,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:53:49,320 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:53:49,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:53:49,466 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:53:49,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:49 WrapperNode [2019-10-13 22:53:49,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:53:49,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:53:49,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:53:49,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:53:49,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:49" (1/1) ... [2019-10-13 22:53:49,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:49" (1/1) ... [2019-10-13 22:53:49,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:49" (1/1) ... [2019-10-13 22:53:49,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:49" (1/1) ... [2019-10-13 22:53:49,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:49" (1/1) ... [2019-10-13 22:53:49,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:49" (1/1) ... [2019-10-13 22:53:49,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:49" (1/1) ... [2019-10-13 22:53:49,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:53:49,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:53:49,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:53:49,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:53:49,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:49" (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 [2019-10-13 22:53:49,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:53:49,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:53:49,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-13 22:53:49,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-13 22:53:49,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:53:49,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2019-10-13 22:53:49,605 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-10-13 22:53:49,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-10-13 22:53:49,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-10-13 22:53:49,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-10-13 22:53:49,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-10-13 22:53:49,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-10-13 22:53:49,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2019-10-13 22:53:49,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2019-10-13 22:53:49,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-13 22:53:49,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2019-10-13 22:53:49,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2019-10-13 22:53:49,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2019-10-13 22:53:49,607 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-10-13 22:53:49,607 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:53:49,608 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-13 22:53:49,608 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-13 22:53:49,608 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-13 22:53:49,608 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-13 22:53:49,608 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-13 22:53:49,608 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-13 22:53:49,609 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-13 22:53:49,609 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-13 22:53:49,609 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-13 22:53:49,609 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-13 22:53:49,609 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-13 22:53:49,610 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-13 22:53:49,610 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-13 22:53:49,610 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-13 22:53:49,610 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-13 22:53:49,610 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-13 22:53:49,610 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-13 22:53:49,611 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-13 22:53:49,611 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-13 22:53:49,611 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-13 22:53:49,611 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-13 22:53:49,611 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-13 22:53:49,611 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-13 22:53:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-13 22:53:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-13 22:53:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-13 22:53:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-13 22:53:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-13 22:53:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-13 22:53:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-13 22:53:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-13 22:53:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-13 22:53:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-13 22:53:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-13 22:53:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-13 22:53:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-13 22:53:49,614 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-13 22:53:49,614 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-13 22:53:49,614 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-13 22:53:49,614 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-13 22:53:49,614 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-13 22:53:49,614 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-13 22:53:49,614 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-13 22:53:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-13 22:53:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-13 22:53:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-13 22:53:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-13 22:53:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-13 22:53:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-13 22:53:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-13 22:53:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-13 22:53:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-13 22:53:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:53:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 22:53:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-13 22:53:49,617 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:53:49,617 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-13 22:53:49,617 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-13 22:53:49,617 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-13 22:53:49,617 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-13 22:53:49,617 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-13 22:53:49,617 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-13 22:53:49,618 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-13 22:53:49,618 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 22:53:49,618 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-13 22:53:49,618 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-13 22:53:49,618 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-13 22:53:49,618 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-13 22:53:49,619 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-13 22:53:49,619 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-13 22:53:49,619 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-13 22:53:49,619 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-13 22:53:49,619 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-13 22:53:49,619 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-13 22:53:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-13 22:53:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-13 22:53:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-13 22:53:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-13 22:53:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-13 22:53:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-13 22:53:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-13 22:53:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-13 22:53:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-13 22:53:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-13 22:53:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-13 22:53:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-13 22:53:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-13 22:53:49,622 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-13 22:53:49,622 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-13 22:53:49,622 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-13 22:53:49,622 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-13 22:53:49,622 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-13 22:53:49,622 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-13 22:53:49,622 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-13 22:53:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-13 22:53:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-13 22:53:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-13 22:53:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-13 22:53:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-13 22:53:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-13 22:53:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-13 22:53:49,624 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-13 22:53:49,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:53:49,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:53:49,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:53:49,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:53:49,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:53:49,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:53:49,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2019-10-13 22:53:49,625 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-10-13 22:53:49,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:53:49,625 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-10-13 22:53:49,625 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-10-13 22:53:49,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-10-13 22:53:49,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:53:49,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-10-13 22:53:49,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-10-13 22:53:49,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2019-10-13 22:53:49,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2019-10-13 22:53:49,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-13 22:53:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2019-10-13 22:53:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2019-10-13 22:53:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2019-10-13 22:53:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:53:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:53:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:53:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-10-13 22:53:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:53:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:53:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:53:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:53:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:53:50,504 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:53:50,505 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-13 22:53:50,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:53:50 BoogieIcfgContainer [2019-10-13 22:53:50,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:53:50,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:53:50,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:53:50,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:53:50,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:53:48" (1/3) ... [2019-10-13 22:53:50,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f45e2b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:53:50, skipping insertion in model container [2019-10-13 22:53:50,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:49" (2/3) ... [2019-10-13 22:53:50,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f45e2b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:53:50, skipping insertion in model container [2019-10-13 22:53:50,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:53:50" (3/3) ... [2019-10-13 22:53:50,516 INFO L109 eAbstractionObserver]: Analyzing ICFG test_add-2.i [2019-10-13 22:53:50,528 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:53:50,540 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:53:50,573 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:53:50,608 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:53:50,608 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:53:50,609 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:53:50,609 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:53:50,609 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:53:50,610 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:53:50,610 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:53:50,610 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:53:50,633 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-10-13 22:53:50,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-13 22:53:50,642 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:53:50,643 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:53:50,646 INFO L410 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:53:50,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:53:50,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1954843816, now seen corresponding path program 1 times [2019-10-13 22:53:50,664 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:53:50,664 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846234586] [2019-10-13 22:53:50,664 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:53:50,665 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:53:50,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:53:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:53:50,958 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 22:53:50,959 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846234586] [2019-10-13 22:53:50,960 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595292935] [2019-10-13 22:53:50,961 INFO L94 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 [2019-10-13 22:53:51,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:53:51,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-13 22:53:51,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:53:51,168 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:53:51,168 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:53:51,225 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 22:53:51,226 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 22:53:51,226 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 4 [2019-10-13 22:53:51,227 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838323317] [2019-10-13 22:53:51,232 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 22:53:51,233 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:53:51,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 22:53:51,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 22:53:51,251 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 4 states. [2019-10-13 22:53:51,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:53:51,310 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2019-10-13 22:53:51,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 22:53:51,312 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-10-13 22:53:51,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:53:51,330 INFO L225 Difference]: With dead ends: 62 [2019-10-13 22:53:51,331 INFO L226 Difference]: Without dead ends: 38 [2019-10-13 22:53:51,338 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 22:53:51,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-13 22:53:51,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-10-13 22:53:51,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-10-13 22:53:51,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2019-10-13 22:53:51,397 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 25 [2019-10-13 22:53:51,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:53:51,398 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2019-10-13 22:53:51,398 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 22:53:51,398 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2019-10-13 22:53:51,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-13 22:53:51,401 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:53:51,402 INFO L380 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] [2019-10-13 22:53:51,605 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:53:51,606 INFO L410 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:53:51,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:53:51,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1040056514, now seen corresponding path program 1 times [2019-10-13 22:53:51,607 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:53:51,608 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476275918] [2019-10-13 22:53:51,608 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:53:51,609 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:53:51,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:53:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:53:51,984 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 22:53:51,984 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476275918] [2019-10-13 22:53:51,985 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715358898] [2019-10-13 22:53:51,985 INFO L94 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 [2019-10-13 22:53:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:53:52,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 43 conjunts are in the unsatisfiable core [2019-10-13 22:53:52,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:53:52,265 INFO L375 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 [2019-10-13 22:53:52,266 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 22:53:52,282 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:53:52,287 INFO L375 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 [2019-10-13 22:53:52,287 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 22:53:52,295 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:53:52,296 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 22:53:52,296 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:10 [2019-10-13 22:53:52,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:53:52,472 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:53:52,870 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 22:53:52,882 INFO L375 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 [2019-10-13 22:53:52,884 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 22:53:52,891 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:53:52,895 INFO L375 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 [2019-10-13 22:53:52,896 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 22:53:52,900 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:53:52,901 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 22:53:52,901 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:17 [2019-10-13 22:53:53,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 22:53:53,050 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 22:53:53,051 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 20 [2019-10-13 22:53:53,051 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743216085] [2019-10-13 22:53:53,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 22:53:53,053 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:53:53,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 22:53:53,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2019-10-13 22:53:53,055 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 9 states. [2019-10-13 22:53:53,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:53:53,687 INFO L93 Difference]: Finished difference Result 75 states and 85 transitions. [2019-10-13 22:53:53,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 22:53:53,690 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2019-10-13 22:53:53,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:53:53,692 INFO L225 Difference]: With dead ends: 75 [2019-10-13 22:53:53,692 INFO L226 Difference]: Without dead ends: 61 [2019-10-13 22:53:53,694 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=188, Invalid=624, Unknown=0, NotChecked=0, Total=812 [2019-10-13 22:53:53,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-10-13 22:53:53,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 39. [2019-10-13 22:53:53,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-13 22:53:53,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2019-10-13 22:53:53,704 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 26 [2019-10-13 22:53:53,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:53:53,705 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2019-10-13 22:53:53,705 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 22:53:53,705 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2019-10-13 22:53:53,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-13 22:53:53,706 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:53:53,706 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 22:53:53,911 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:53:53,911 INFO L410 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:53:53,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:53:53,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1574117224, now seen corresponding path program 1 times [2019-10-13 22:53:53,913 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:53:53,913 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675778621] [2019-10-13 22:53:53,913 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:53:53,914 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:53:53,914 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:53:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:53:54,210 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 22:53:54,210 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675778621] [2019-10-13 22:53:54,211 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:53:54,211 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-13 22:53:54,211 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240813698] [2019-10-13 22:53:54,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 22:53:54,212 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:53:54,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 22:53:54,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2019-10-13 22:53:54,213 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 15 states. [2019-10-13 22:53:54,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:53:54,942 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2019-10-13 22:53:54,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-13 22:53:54,944 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 36 [2019-10-13 22:53:54,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:53:54,945 INFO L225 Difference]: With dead ends: 55 [2019-10-13 22:53:54,946 INFO L226 Difference]: Without dead ends: 49 [2019-10-13 22:53:54,949 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=124, Invalid=746, Unknown=0, NotChecked=0, Total=870 [2019-10-13 22:53:54,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-10-13 22:53:54,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 40. [2019-10-13 22:53:54,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-13 22:53:54,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2019-10-13 22:53:54,965 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 36 [2019-10-13 22:53:54,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:53:54,966 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2019-10-13 22:53:54,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 22:53:54,966 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2019-10-13 22:53:54,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-13 22:53:54,969 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:53:54,969 INFO L380 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] [2019-10-13 22:53:54,970 INFO L410 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:53:54,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:53:54,970 INFO L82 PathProgramCache]: Analyzing trace with hash 645053328, now seen corresponding path program 1 times [2019-10-13 22:53:54,970 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:53:54,971 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463799927] [2019-10-13 22:53:54,971 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:53:54,971 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:53:54,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:53:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:53:55,061 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 22:53:55,063 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463799927] [2019-10-13 22:53:55,063 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:53:55,063 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 22:53:55,064 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143705713] [2019-10-13 22:53:55,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 22:53:55,064 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:53:55,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 22:53:55,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 22:53:55,065 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 4 states. [2019-10-13 22:53:55,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:53:55,077 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2019-10-13 22:53:55,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 22:53:55,077 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2019-10-13 22:53:55,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:53:55,079 INFO L225 Difference]: With dead ends: 48 [2019-10-13 22:53:55,079 INFO L226 Difference]: Without dead ends: 42 [2019-10-13 22:53:55,080 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 22:53:55,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-10-13 22:53:55,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2019-10-13 22:53:55,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-13 22:53:55,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2019-10-13 22:53:55,095 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 37 [2019-10-13 22:53:55,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:53:55,096 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2019-10-13 22:53:55,096 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 22:53:55,096 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2019-10-13 22:53:55,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-13 22:53:55,097 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:53:55,097 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 22:53:55,098 INFO L410 AbstractCegarLoop]: === Iteration 5 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:53:55,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:53:55,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1681680497, now seen corresponding path program 1 times [2019-10-13 22:53:55,098 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:53:55,098 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391356512] [2019-10-13 22:53:55,101 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:53:55,101 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:53:55,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:53:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:53:55,580 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2019-10-13 22:53:55,738 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2019-10-13 22:53:56,006 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2019-10-13 22:53:56,213 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2019-10-13 22:53:56,352 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 22:53:56,353 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391356512] [2019-10-13 22:53:56,353 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648202622] [2019-10-13 22:53:56,353 INFO L94 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 [2019-10-13 22:53:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:53:56,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 102 conjunts are in the unsatisfiable core [2019-10-13 22:53:56,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:53:56,655 INFO L375 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 [2019-10-13 22:53:56,655 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 22:53:56,669 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:53:56,670 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 22:53:56,670 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2019-10-13 22:53:56,826 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_71|, |v_#memory_$Pointer$.base_71|], 2=[|v_#memory_int_66|, |v_#memory_int_67|, |v_#memory_int_65|]} [2019-10-13 22:53:56,854 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 22:53:57,014 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 39 [2019-10-13 22:53:57,015 INFO L341 Elim1Store]: treesize reduction 100, result has 50.2 percent of original size [2019-10-13 22:53:57,016 INFO L375 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 [2019-10-13 22:53:57,017 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 22:53:57,351 WARN L191 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2019-10-13 22:53:57,352 INFO L567 ElimStorePlain]: treesize reduction 36, result has 86.2 percent of original size [2019-10-13 22:53:57,370 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 22:53:57,513 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 31 [2019-10-13 22:53:57,514 INFO L341 Elim1Store]: treesize reduction 139, result has 30.8 percent of original size [2019-10-13 22:53:57,515 INFO L375 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 [2019-10-13 22:53:57,516 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 22:53:57,780 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-10-13 22:53:57,780 INFO L567 ElimStorePlain]: treesize reduction 16, result has 92.6 percent of original size [2019-10-13 22:53:57,787 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 22:53:57,909 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-10-13 22:53:57,910 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:53:57,916 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 22:53:58,027 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-10-13 22:53:58,028 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:53:58,035 INFO L496 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 22:53:58,135 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:53:58,136 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 22:53:58,137 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:53:58,138 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:53:58,139 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:53:58,141 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:53:58,145 INFO L496 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. [2019-10-13 22:53:58,146 INFO L221 ElimStorePlain]: Needed 6 recursive calls to eliminate 7 variables, input treesize:231, output treesize:213 [2019-10-13 22:53:58,146 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 22:53:58,147 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:53:58,147 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:53:58,148 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:53:58,149 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:53:58,338 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:53:58,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:53:58,340 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 22:53:58,341 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:53:58,344 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 22:53:58,345 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:53:58,346 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms